Data and Method
Data and Method
The full working data behind our numerical pieces, with every figure classified, every source named, and every unresolved disagreement printed rather than tidied away.
Where an article on this site rests on a dataset rather than on reporting, the dataset lives here in full. The purpose is not decoration. It is to let a reader or a fact-checker re-derive our numbers, find the point at which they diverge from ours, and see which choices we made where the sources disagree.
Nothing on this page is an argument. Interpretation belongs in the articles; this page holds only the figures and how they were obtained.
Articles resting on this data
Where an article's argument depends on a figure recorded here, that dependency is stated in the article's method note and the figure is listed above. If a number below is later corrected, any article resting on it is corrected too, and both changes appear in the revision log.
How every figure is classified
Budget quantities are not one kind of number. Mixing them silently is the most common way a procurement series manufactures a trend that does not exist. Every figure below carries one of these labels.
Standing rule: where a fiscal year's quantity is available both as a request in its own budget book and as a prior-year figure in a later book, we use the later book. The request is what was asked for; the later column is what happened. This is not pedantry — see the FY2021 entry below, where the two differ by 33 missiles inside a single document.
Screening rules applied to counted datasets
Dataset 01 — Tomahawk procurement, FY1998 to FY2027
Quantities are new-build all-up rounds on the Navy's weapons procurement line item 2101. Modification and recapitalisation funding, which upgrades missiles already held, is a separate line and is excluded throughout.
| FY | Qty | Class | Note |
|---|---|---|---|
| 1998 | 0 | Appropriated | |
| 1999 | 624 | Appropriated | Largest single-year buy in the series |
| 2000 | 0 | Appropriated | |
| 2001 | 0 | Appropriated | |
| 2002 | 25 | Appropriated | |
| 2003 | 350 | Appropriated | |
| 2004 | 322 | Appropriated | |
| 2005 | 298 | Appropriated | |
| 2006 | 408 | Appropriated | |
| 2007 | 355 | Appropriated | |
| 2008 | 496 | Appropriated | |
| 2009 | 207 | Appropriated | |
| 2010 | 196 | Appropriated | Exactly at sustaining rate |
| 2011 | 417 | Appropriated | |
| 2012 | 196 | Appropriated | Exactly at sustaining rate |
| 2013 | 196 | Appropriated | Exactly at sustaining rate |
| 2014 | 206 | Appropriated | |
| 2015 | 243 | Appropriated | Request was 100; Congress raised it |
| 2016 | 149 | Appropriated | |
| 2017 | 196 ? | Appropriated | Disputed — see below |
| 2018 | 100 | Appropriated | |
| 2019 | 0 | Appropriated | No missiles procured |
| 2020 | 90 | Appropriated | |
| 2021 | 122 | Enacted | Request was 155 |
| 2022 | 70 | Enacted | Request was 60 |
| 2023 | 26 | Enacted | |
| 2024 | 30 | Enacted | |
| 2025 | 22 | Enacted | 20 recorded as delivered — different class |
| 2026 | 57 | Requested | War begins in this fiscal year |
| 2027 | 785 | Requested | 58 discretionary, 727 by reconciliation |
Internal consistency check — passed
The Congressional Research Service states that the Navy spent 5.87 billion dollars on 4,984 Tomahawk missiles from FY1998 through FY2018. The quantities extracted above for those twenty-one years sum to exactly 4,984. The series is internally consistent with the total published by the same source.
The sustaining rate
196 missiles per year is the figure given in 2015 by Representative Randy Forbes, then chairman of the House Armed Services Seapower and Projection Forces Subcommittee, as the quantity required to sustain the production line. It is independently corroborated by the procurement pattern itself: the Navy bought exactly 196 in four separate fiscal years.
Unresolved disagreement — FY2017
Two sources give different quantities for the same year while agreeing exactly on the money.
196 missiles — Congressional Research Service, Table B-2, sourced to Department of Defense P-1 procurement budget requests.
0 missiles — commercial budget aggregator drawing on line item 2101.
Both record 297.5 million dollars appropriated. Zero new-build rounds for that sum is implausible at prevailing unit costs, so we carry 196 and mark it disputed. This has not yet been checked against the primary exhibit and should not be treated as settled. A checker wanting to resolve it should pull the P-40 justification exhibit for line item 2101 in a budget book of FY2019 or later and read the FY2017 prior-year column.
A caution about the corroborating source
The commercial aggregator used to extend the series past FY2021 reproduces the Congressional Research Service dollar figures exactly on every overlapping year, and the quantities on seven of eight. But its page metadata is corrupted — it carries a programme description belonging to a different missile and misattributes the budget account. We have used it only where its figures could be cross-checked, and never as a sole source.
Staleness note, 16 October 2026. Datasets 01, 02 and 03 were last revised on 9 August and have still not been re-checked. The war they describe has continued daily throughout that period, and the expenditure figures in Dataset 02 in particular are now more than two months out of date. Nothing below has been shown to be wrong; it has simply not been re-examined, and a reader should treat every 2026 figure in those three datasets as current to 9 August rather than to today.
Dataset 02 — Rounds fired, by operation
These figures come from operational reporting, not from budget documents. They therefore sit in a different evidentiary class from Dataset 01, and any ratio between the two is reported as an order of magnitude only, never as a precise quotient. Rule 5 cannot be satisfied here and we do not pretend otherwise.
| Operation | Fired | Basis |
|---|---|---|
| Desert Storm, 1991 | 288 | Think-tank compilation of reported strike data. A congressional research account gives 290, launched from 12 submarines; a third cites over 300 Block II variants including 27 of the submunition type. Range 288 to 300. |
| Desert Fox, Dec 1998 | 325 | Same compilation. A 70-hour campaign. An outlying report of 50 is unsupported elsewhere and is discarded. |
| Allied Force, 1999 | 218 | Serbia and Montenegro. |
| Iraqi Freedom, 2003 | 802 | Think-tank compilation. Richard Myers, as chairman of the Joint Chiefs, gave over 725 at the time. Both printed; the gap is likely invasion-phase against full-campaign scope. |
| Odyssey Dawn, 2011 | 112 | US launches. Also reported as at least 161 and as 196 for US and UK combined. |
| Epic Fury, 2026 | 850+ | First four weeks, 28 February to 27 March, per a national newspaper investigation citing people familiar with the matter. Later raised — see below. |
Epic Fury is the largest Tomahawk campaign on record
More than 850 rounds in four weeks exceeds Iraqi Freedom's 802 across an entire invasion, which held the previous record. That comparison is drawn by the same think-tank analysis supplying the historical figures above, so numerator and denominator share a methodology and Rule 5 is satisfied for this particular claim.
Boundary warning on the 2026 figure
Three figures are in circulation and they do not measure the same thing.
More than 850 in the first four weeks, 28 February to 27 March. Newspaper investigation, sourced to people familiar with the matter. War-bounded and dated.
More than 1,000 by the ceasefire. Originally a financial newspaper figure, subsequently relayed in a think-tank assessment. Attribution note: this figure is often credited to the think tank, which was quoting the newspaper. We have made that error ourselves in an earlier edition and correct it here.
Close to 1,000 across strikes on Iran, operations in Yemen and the Red Sea, Nigeria and other conflicts since June 2025 — an eighteen-month, multi-theatre aggregate.
The third cannot be attributed to this war and is excluded under Rule 7. The first two are compatible: 850 in the opening month, passing 1,000 by the ceasefire. We use 850 where a four-week rate is the point and the later figure where cumulative depletion is.
Dataset 03 — Production rates, lead times and replenishment
Withdrawn figure. This dataset previously stated a maximum production capacity of about 2,330 missiles a year, built from three prime-contractor lines at 600 each plus a second manufacturer at 530, and derived from it a claim that actual buying ran at four per cent of capacity. No such figure appears in any source. It was not a misreading of a real number; it was not supported at all, and it should never have been published. It has been removed here and the article resting on it has been corrected. See the revision log.
| Measure | Value | Basis and class |
|---|---|---|
| Recent annual production | under 200 | Think-tank assessment, May 2026. Cause given as small past orders. Actual. |
| US-specific annual rate | ~60–100 | Wire service gives about 60 for the United States; a defence outlet gives 90 to 100. Actual, contested range. |
| Procurement average FY15–FY26 | 86 | Same think-tank assessment, most orders from the Navy. Our Dataset 01 gives about 92 across that span; the gap is consistent with Navy-only against all-service. Actual. |
| Target production capacity | 1,000+ | Framework agreements signed 4 February 2026, up to seven years. Goal, not capability. Must never be used as a current-capacity denominator. |
| Production lead time | 34 months | Department of Defense delivery projections. |
| FY2027 buy first deliveries | March 2030 | Same projections. |
| Full pre-war replenishment | late 2030 | Think-tank estimate. |
| Foreign orders on the same line | ~800 | Japan, Australia, Netherlands. Absent from US procurement documents. |
The two competing sustainment figures
Roughly 90 a year is commonly given as the minimum needed to keep the line running. 196 traces to a 2015 argument by the chairman of the responsible House subcommittee, made in support of a funding increase — an advocacy figure, not a budget-document rate. It is corroborated only in the weak sense that the Navy bought exactly 196 in four separate years, which is as consistent with contract lot sizing as with a technical floor. Both are printed; neither is treated as settled.
Inventory estimates
Pre-war stockpile is given as the low 3,000s by one think tank and as 4,000 to 4,150 by a defence outlet. The Department of Defense does not disclose it. These are outside estimates and published depletion percentages depend entirely on which is chosen.
A boundary discrepancy in Dataset 01, unresolved
Two outlets give FY2023 Tomahawk procurement as 55. Dataset 01 gives 26, from the Navy weapons procurement line.
The likeliest explanation is scope: a single FY2023 contract modification for 111 Block V rounds split 50 to the Army, 48 to the Navy and 13 to the Marine Corps, so non-Navy buys were the majority of that lot. A Navy-only series will therefore understate national procurement from roughly 2023 onward, when land-based variants entered service.
We have not resolved this and it is a real limitation on Dataset 01's later years. Any ratio using a Navy-only numerator against an all-programme denominator breaches Rule 6 and is not attempted here.
Dataset 04 — The prediction ledger, and the continuity baseline
The Scoring Record has promised its readers a naive continuity baseline: what a desk that simply predicted continuity every time would have scored on the same panels. That page cannot compute it, because it holds block anchors rather than individual grades. This dataset is where the row-level ledger is kept. It is incomplete and its scope is stated exactly.
Classification used
Scope, stated plainly
Rows exist for 95 of the 417 finalised predictions, or about 23 per cent: the 16 graded from 3 to 6 September, and the 79 graded from 26 September to 16 October, for which this desk holds the weight, standalone likelihood, falsifier and grade in its own ledger. The predictions graded from 7 to 25 September, and everything graded before 3 September, are recorded on this site only inside their own editions and have not yet been extracted. Until they are, no lifetime baseline can be computed and none is claimed.
Rows graded 3 to 6 September
| Graded | Panel | Proposition | Wt | SA | Kind | Grade |
|---|---|---|---|---|---|---|
| 3 Sep | 27 Aug | The keynote gives nothing away | 30 | n/p | Continuity, institutional | 6 Hit |
| 3 Sep | 27 Aug | September pricing stays below sixty | 26 | n/p | Continuity, price | 2 Miss |
| 3 Sep | 27 Aug | The British officials stay | 24 | n/p | Continuity, institutional | 7 Hit |
| 3 Sep | 27 Aug | The revenue split does not become a text | 20 | n/p | Continuity, institutional | 7 Hit |
| 4 Sep | 28 Aug | The corridor does not open | 26 | 50 | Continuity, institutional | 7 Hit, capped |
| 4 Sep | 28 Aug | No goods through Erez | 22 | 45 | Continuity, institutional | 7 Hit, capped |
| 4 Sep | 28 Aug | Diesel holds above 5.60 | 24 | 65 | Continuity, price | 5 Miss |
| 4 Sep | 28 Aug | The Russian ban does not lapse | 28 | 80 | Continuity, institutional | 8 Hit, affirmative |
| 5 Sep | 29 Aug | The two-year holds above 4.25 | 26 | 70 | Continuity, price | 8 Hit, affirmative |
| 5 Sep | 29 Aug | No American-Iranian talks | 24 | 80 | Continuity, institutional | 6 Hit, capped |
| 5 Sep | 29 Aug | No named West Bank operation | 24 | 60 | Continuity, institutional | 7 Hit, capped |
| 5 Sep | 29 Aug | The branches stay open | 26 | 45 | Continuity, institutional | 8 Hit, affirmative |
| 6 Sep | 30 Aug | The December date holds | 28 | 60 | Continuity, institutional | 8 Hit, affirmative |
| 6 Sep | 30 Aug | The wage is not revised | 26 | 80 | Continuity, institutional | 6 Hit, capped |
| 6 Sep | 30 Aug | No strike inside Iran | 24 | 70 | Continuity, institutional | 5 Miss |
| 6 Sep | 30 Aug | No Taiwan exercise announced | 22 | 85 | Continuity, institutional | 6 Hit, capped |
Wt is the panel weight, SA the standalone likelihood. Where the standalone is marked n/p it was published in the edition but is not recorded in the summary this desk holds for that board, and the row is incomplete pending extraction from the edition itself.
Rows graded 26 September to 16 October
| Graded | Panel | Proposition | Wt | SA | Kind | Grade |
|---|---|---|---|---|---|---|
| 26 Sep | 19 Sep | The delegation appears | 27 | 60 | Change, diplomatic contact | 8 Hit |
| 26 Sep | 20 Sep | No American–Iranian meeting | 27 | 78 | Continuity, diplomatic contact | 3 Miss |
| 26 Sep | 22 Sep | The aviation measures land on their date | 24 | 70 | Change, trade or sanctions measure | 8 Hit |
| 27 Sep | 20 Sep | Washington stays out of the southern war | 26 | 72 | Continuity, strike announced | 7 Hit |
| 27 Sep | 20 Sep | Outside the region: the authorisation lapses unannounced | 25 | 62 | Continuity, scheduled process | 6 Hit |
| 27 Sep | 20 Sep | Outside the region: the long end stays under five | 22 | 64 | Continuity, market threshold | 2 Miss |
| 28 Sep | 21 Sep | Washington does not answer the conditions | 30 | 60 | Continuity, diplomatic contact | 3 Miss |
| 28 Sep | 21 Sep | Outside the region: no fourth straw poll | 22 | 62 | Continuity, scheduled process | 6 Hit |
| 28 Sep | 22 Sep | The fund stays a document | 30 | 72 | Continuity, on record statement | 6 Hit |
| 28 Sep | 22 Sep | No moratorium is agreed | 26 | 85 | Continuity, agreement concluded | 6 Hit |
| 29 Sep | 22 Sep | Outside the region: no coalition in Schwerin | 20 | 88 | Continuity, agreement concluded | 7 Hit |
| 29 Sep | 23 Sep | The second meeting is publicly confirmed to have happened | 30 | 55 | Change, diplomatic contact | 4 Miss |
| 29 Sep | 23 Sep | Tehran does not lower its price | 26 | 82 | Continuity, policy reversal | 6 Hit |
| 29 Sep | 23 Sep | Outside the region: no moratorium for Ukraine either | 20 | 88 | Continuity, agreement concluded | 7 Hit |
| 30 Sep | 23 Sep | Beirut stays out of it for another week | 24 | 75 | Continuity, strike announced | 6 Hit |
| 30 Sep | 24 Sep | The hundred-dollar floor holds | 30 | 65 | Continuity, market threshold | 7 Hit |
| 30 Sep | 24 Sep | The line stays unconfirmed for another week | 26 | 65 | Continuity, on record statement | 6 Hit |
| 1 Oct | 24 Sep | The bombs are not formally notified | 24 | 75 | Continuity, trade or sanctions measure | 6 Hit |
| 1 Oct | 24 Sep | Outside the region: the curbs stay voluntary | 20 | 70 | Continuity, trade or sanctions measure | 6 Hit |
| 1 Oct | 25 Sep | The strait is not declared open | 30 | 85 | Continuity, operational status | 6 Hit |
| 1 Oct | 25 Sep | No impeachment vote on Araghchi | 26 | 85 | Continuity, legislative vote | 6 Hit |
| 1 Oct | 25 Sep | The Palestinian ballot takes candidates | 24 | 85 | Change, scheduled process | 8 Hit |
| 1 Oct | 25 Sep | Outside the region: no loan for Caracas yet | 20 | 78 | Continuity, institutional decision | 6 Hit |
| 3 Oct | 26 Sep | No American strike on Iran before the week is out | 30 | 78 | Continuity, strike announced | 6 Hit |
| 3 Oct | 26 Sep | No inspectors inside yet | 26 | 92 | Continuity, operational status | 6 Hit |
| 3 Oct | 26 Sep | The pact stays defensive | 24 | 80 | Continuity, strike announced | 6 Hit |
| 3 Oct | 26 Sep | Outside the region: no new tariff on China | 20 | 90 | Continuity, trade or sanctions measure | 6 Hit |
| 4 Oct | 27 Sep | The Palestinian vote keeps its date | 30 | 80 | Continuity, scheduled process | 7 Hit |
| 4 Oct | 27 Sep | No Iranian attack on an American warship | 26 | 80 | Continuity, strike announced | 6 Hit |
| 4 Oct | 27 Sep | No Israeli–Syrian meeting confirmed | 24 | 78 | Continuity, diplomatic contact | 6 Hit |
| 4 Oct | 27 Sep | Outside the region: the ten-year holds above five | 20 | 70 | Continuity, market threshold | 7 Hit |
| 5 Oct | 28 Sep | The Ramallah revocation stands | 30 | 78 | Continuity, policy reversal | 6 Hit |
| 5 Oct | 28 Sep | The Abu Dhabi meeting stays unconfirmed | 26 | 65 | Continuity, diplomatic contact | 3 Miss |
| 5 Oct | 28 Sep | The blockade stays on | 24 | 90 | Continuity, operational status | 7 Hit |
| 5 Oct | 28 Sep | Outside the region: Kyiv does not apologise to Seoul | 20 | 65 | Continuity, diplomatic contact | 6 Hit |
| 6 Oct | 29 Sep | Washington marks the exit from Iraq | 30 | 65 | Change, institutional decision | 8 Hit |
| 6 Oct | 29 Sep | Abu Dhabi does not deny the warning | 26 | 85 | Continuity, on record statement | 6 Hit |
| 6 Oct | 29 Sep | Riyadh keeps its seat in Abu Dhabi unconfirmed | 24 | 88 | Continuity, diplomatic contact | 7 Hit |
| 6 Oct | 29 Sep | Outside the region: the Security Council holds its fourth straw poll | 20 | 80 | Change, scheduled process | 8 Hit |
| 7 Oct | 30 Sep | Tehran answers on the record | 30 | 55 | Change, diplomatic contact | 8 Hit |
| 7 Oct | 30 Sep | Tehran claims another ship | 26 | 70 | Change, attack claimed | 3 Miss |
| 7 Oct | 30 Sep | No date for the end of the war | 24 | 85 | Continuity, on record statement | 6 Hit |
| 7 Oct | 30 Sep | Outside the region: Spain's indefinite-lease decree falls | 20 | 75 | Continuity, legislative vote | 7 Hit |
| 8 Oct | 1 Oct | No charge yet at Fairford | 30 | 75 | Continuity, court or prosecution | 7 Hit |
| 8 Oct | 1 Oct | London calls in Tehran's envoy | 26 | 55 | Change, diplomatic contact | 4 Miss |
| 8 Oct | 1 Oct | The alliance files its list | 24 | 60 | Change, scheduled process | 3 Miss |
| 8 Oct | 1 Oct | Outside the region: Milwaukee ends without a joint text | 20 | 50 | Continuity, agreement concluded | 4 Miss |
| 9 Oct | 2 Oct | Abu Dhabi names no sponsor | 30 | 75 | Continuity, on record statement | 7 Hit |
| 9 Oct | 2 Oct | Islamabad and Ankara do not name Medina as the trigger | 26 | 80 | Continuity, on record statement | 3 Miss |
| 9 Oct | 2 Oct | Ra'am is back on the ballot | 24 | 80 | Change, court or prosecution | 8 Hit |
| 9 Oct | 2 Oct | Outside the region: Berlin and Paris hold their diesel | 20 | 50 | Continuity, institutional decision | 5 Miss |
| 10 Oct | 3 Oct | Diesel at the pump eases | 30 | 75 | Change, market threshold | 8 Hit |
| 10 Oct | 3 Oct | Tehran answers Manchester | 26 | 65 | Change, on record statement | 3 Miss |
| 10 Oct | 3 Oct | No date for the Rome round | 24 | 60 | Continuity, scheduled process | 6 Hit |
| 10 Oct | 3 Oct | Outside the region: Brazil goes to a second round | 20 | 85 | Continuity, scheduled process | 7 Hit |
| 11 Oct | 4 Oct | No American strike on Iran this week | 30 | 50 | Continuity, strike announced | 7 Hit |
| 11 Oct | 4 Oct | Three carriers stay off the record | 26 | 75 | Continuity, on record statement | 6 Hit |
| 11 Oct | 4 Oct | No American strike on the Houthis this week | 24 | 50 | Continuity, strike announced | 6 Hit |
| 11 Oct | 4 Oct | Outside the region: Riga takes its time | 20 | 88 | Continuity, agreement concluded | 6 Hit |
| 12 Oct | 5 Oct | The Taiz road stays cut | 30 | 55 | Continuity, operational status | 7 Hit |
| 12 Oct | 5 Oct | No confidence vote on an oil minister | 26 | 88 | Continuity, legislative vote | 7 Hit |
| 12 Oct | 5 Oct | Regev keeps her ministry | 24 | 90 | Continuity, office holder change | 7 Hit |
| 12 Oct | 5 Oct | Outside the region: Okinawa gets new limits | 20 | 60 | Change, institutional decision | 8 Hit |
| 13 Oct | 6 Oct | The promise stays a promise this week | 30 | 50 | Continuity, operational status | 6 Hit |
| 13 Oct | 6 Oct | Ankara does not ratify this week | 26 | 85 | Continuity, legislative vote | 7 Hit |
| 13 Oct | 6 Oct | The Palestinian nomination deadline holds | 24 | 78 | Continuity, scheduled process | 6 Hit |
| 13 Oct | 6 Oct | Outside the region: the warrants stand | 20 | 88 | Continuity, court or prosecution | 2 Miss |
| 14 Oct | 7 Oct | Washington does not go back to zero this week | 30 | 55 | Continuity, on record statement | 6 Hit |
| 14 Oct | 7 Oct | No one sits across the table this week | 26 | 75 | Continuity, diplomatic contact | 7 Hit |
| 14 Oct | 7 Oct | London answers Jerusalem in kind | 24 | 55 | Change, diplomatic contact | 4 Miss |
| 14 Oct | 7 Oct | Outside the region: Nairobi holds at one | 20 | 70 | Continuity, count threshold | 7 Hit |
| 15 Oct | 8 Oct | The seven stay at their desks | 30 | 80 | Continuity, policy reversal | 6 Hit |
| 15 Oct | 8 Oct | Doha names nobody | 26 | 70 | Continuity, on record statement | 6 Hit |
| 15 Oct | 8 Oct | Damascus keeps its troops at home this week | 24 | 50 | Continuity, operational status | 6 Hit |
| 15 Oct | 8 Oct | Outside the region: the torture counts are filed | 20 | 75 | Change, court or prosecution | 8 Hit |
| 16 Oct | 9 Oct | Tehran sends its answer | 30 | 65 | Change, diplomatic contact | 3 Miss |
| 16 Oct | 9 Oct | The blockade outlasts the pledge's first week | 26 | 92 | Continuity, operational status | 7 Hit |
| 16 Oct | 9 Oct | Beirut keeps the general | 24 | 85 | Continuity, court or prosecution | 6 Hit |
| 16 Oct | 9 Oct | Outside the region: Seoul's envoy stays recalled | 20 | 88 | Continuity, diplomatic contact | 7 Hit |
The panel is the date of the edition that published the prediction; the graded date is its close. For these rows this desk's ledger records the grade but not whether a hit rested on an absence or on a positive act, so the Kind column gives the change-or-continuity flag and the reference class instead of the capped and affirmative labels.
The baseline, so far as it can be computed
On the 16 rows graded 3 to 6 September, every prediction was a continuity proposition, so a desk that predicted continuity every time would have produced an identical board: thirteen hits and three misses. That finding stands as published on 6 September.
On the 79 rows graded from 26 September to 16 October, 62 predictions were continuity propositions and 17 were change propositions. On the 62, the continuity-always desk makes the same call and gets the same result: 54 hits. On the 17 it takes the other side, so it hits exactly where this desk missed. This desk hit 10 of the 17; the continuity-always desk would have hit seven. Across the 79, this desk has 64 hits and the continuity-always desk 61.
Across all 95 rows held, this desk has 77 hits and the continuity-always desk 74.
The comparison is made in hits, not in the 0–10 mean, because the opposite of a change proposition was never written or graded and so has no grade to average.
The honest reading: a margin of three hits in 95, all of it earned on 17 change propositions, is too small to show that the analysis adds anything a continuity-always desk would not. Nor does it show that it adds nothing. The change propositions are where the difference would show, and there are not yet enough of them to tell.
Two limits on that finding. First, the rows are not a random sample of the record: they are an early-September week and the most recent three weeks, with the weeks between not yet extracted, so they cannot be extrapolated to the lifetime record. Second, a continuity-always desk still requires somebody to choose which continuity to price. Selecting the propositions is work the baseline does not capture, so what is measured here is answer-selection rather than question-selection.
Reference classes
The fifteen classes, with the number of graded rows from 26 September to 16 October in each and how many came true. A class with fewer than ten graded rows is too thin to read.
| Class | What it covers | Graded | Came true |
|---|---|---|---|
| Diplomatic contact | a meeting, talks, delegation, reply delivered, demand answered, envoy summoned, expelled, recalled or returned, apology | 14 | 7 |
| On record statement | a named body states a specified fact on the record: names or denies a culprit, confirms a fact, sets a date, discloses a plan | 10 | 8 |
| Strike announced | a named state's strike, attack or missile launch is announced or reported by its own side, the target or a named official body | 7 | 7 |
| Attack claimed | an armed group or state claims an attack, or a monitoring body reports attacks against a stated floor | 1 | 0 |
| Market threshold | a published price, yield or series closes or settles on one side of a stated line | 4 | 3 |
| Legislative vote | a parliament or assembly holds, passes or fails a vote, or validates a decree | 4 | 4 |
| Court or prosecution | a court rules, or a prosecutor or police body charges, files or opens a case | 5 | 4 |
| Trade or sanctions measure | a tariff, export control, sanction, licence or statute is imposed, revoked, notified or takes effect | 4 | 4 |
| Agreement concluded | a truce, ceasefire, moratorium, coalition agreement, joint text or accepted offer is announced | 5 | 4 |
| Institutional decision | a body adopts a new decision, approval, mission, loan or restriction that is not a reversal of its own standing one | 4 | 3 |
| Policy reversal | a government withdraws, softens or reverses a standing decision, refusal or term of its own | 3 | 3 |
| Operational status | a blockade, route, airport, flow, facility, deployment, inspection or production level starts, stops or resumes | 7 | 7 |
| Scheduled process | a dated procedure (election, filing, deadline, straw poll, round of talks) occurs, holds or slips | 9 | 8 |
| Office holder change | a named office-holder resigns, is removed, dismissed or killed | 1 | 1 |
| Count threshold | an official count (cases, casualties, displaced) crosses a stated number | 1 | 1 |
What completing this dataset requires
One row per finalised prediction, carrying: edition, run number, date written, proposition as published, panel weight, standalone likelihood, named falsifier, series or body relied on, close date, grade, grading date, hit flag, the change-or-continuity classification and the reference class. The change-or-continuity field is the whole point of the baseline. The rows for predictions graded from 7 to 25 September will be extracted next, then the earlier ones; they exist only inside published editions and must be extracted from them rather than reconstructed from memory or from the Scoring Record's block anchors. This page is revised at each monthly review, and whenever forty more rows are held, and each revision is logged below.
Where to look next
Revision log
Corrections to this page are logged here rather than made silently. If you find an error, the fastest route to a fix is to say which figure and which source.
The approach, the six coverage domains and our scoring record — graded daily and reviewed each month — are set out on the About page.
No financial advice is expressed or implied.
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