Signal sourcesTechnical & upgrades22Grid & penalties22+4Reliability22+2Driver & team form21+1Track & weather17+2inputs the model holds + signals added this week

The Brain

Round 19 · Mexico City Grand Prix

What moved
the numbers

Every dot is a number the model holds. Pick a driver to see the ones behind their win probability.

raiseslowers

The week's drift

Thursday → Qualifying
0%10%20%30%40%ThursdayFridaySaturdayQualifyingRUS 32.0%HAM 26.4%ANT 16.1%LEC 9.1%VER 6.6%NOR 5.6%HAD 2.2%LIN 0.9%BOT 0.0%LAW 0.0%

Track record

88 calls logged
53.3%calls that went the right way
30/88graded against a real result
−0.60average effect on accuracy, in places · currently negative

Contribution is measured in expected finishing places — the forecast error before acting on a signal, minus the error after. Positive means the call moved the forecast toward what actually happened.

Upgrade Td+0.01 · n=1
Weather Track0.00 · n=4
Technical & upgrades0.00 · n=3
Driver & team form0.00 · n=4
Grid Penalty Pending0.00 · n=1
Team Orders0.00 · n=1
Strategy0.00 · n=1
Driver fitness0.00 · n=1
Car damage0.00 · n=2
Reliability−0.04 · n=4
Reliability Scare−0.14 · n=2
Pu Change Back Of Grid−2.58 · n=3
Grid Penalty−3.25 · n=3
RoundSignalWhat we sawCallContribution
R19ReliabilityRed Bull RacingBrady approved 2026-10-29 (R19 Thursday /brain): rbr-r19-launch-pu, Red Bull launch/PU inconsistency. Pre = locked thursday rev1, post = thursday rev2.appliednot yet graded—
R19Weather TrackFerrariNot applied. Pre = thursday rev1, post = rev2 (no Ferrari adjustment).rejectednot yet graded—
R19Form NarrativeRUSnote withheld — it described how the model works rather than what happenedrejectednot yet graded—
R19Weather TrackMexico City GPnote withheld — it described how the model works rather than what happenedrejectednot yet graded—
R19Line-up changeHIRHaas replaced Ocon with reserve Ryo Hirakawa for FP3, qualifying and race of the Mexico City GP; no reason given (team: not illness). Weekend-only per team; beyond R19 unconfirmed.appliednot yet graded—
R19Form NarrativeHIRBrady approved 2026-10-31; FP1 0.57s off Bearman. Pre/post = no-save friday dry runs (10k sims) without/with the entry; not republished.appliednot yet graded—
R19Grid PenaltyVERnote withheld — it described how the model works rather than what happenedappliednot yet graded—
R19Grid PenaltyLAWnote withheld — it described how the model works rather than what happenedappliednot yet graded—
R19Grid PenaltyBOT50-place PU grid drop; already last in quali, no grid change.appliednot yet graded—
R19ReliabilityHAMNot applied. Pre = post = published post-quali rev2 (no change made).rejectednot yet graded—
R19ReliabilityALOBrady declined 2026-10-31: Alonso DNF +0.02. Not applied. Pre = post = published post-quali rev2 (no change made).rejectednot yet graded—
R19Weather TrackMexico City GPnote withheld — it described how the model works rather than what happenedrejectednot yet graded—
R19Form NarrativeVERPre = post = published post-quali rev2 (no change made).rejectednot yet graded—
R19Grid PenaltyLAWLawson disqualified from Qualifying (MGU-K minimum power breach in Q2); starts P22 by stewards' permission, superseding the 1-place FP2 drop. Post-quali rev3. Note: FIA grid parser misses HIR (debut, no season results), so HIR shows grid 20 instead of official P18.appliednot yet graded—
R18Upgrade TdMercedesBrady approved 2026-10-22 (R18 Thursday /brain): Mercedes upgrade-direction uncertainty (σ+0.02, no pace/reliability change).appliedhelped+0.01
R18Weather TrackThe fieldNo adjustment applied; post = pre (zero-magnitude proposal).rejectedno measurable effect0.00
R18Technical & upgradesFerrariBrady approved 2026-10-23 (R18 Friday /brain): fer-r18-floor-package, Ferrari 4-part Performance package (floor body, floor board, sidepod inlet/coke, diffuser). Snapshot pre = locked R18 thursday call; post left empty because the Thursday milestone is locked (no rerun) and the Friday predict runs in GitHub Actions after FP2.appliednot yet graded—
R18Technical & upgradesRacing BullsBrady approved 2026-10-23 (R18 Friday /brain): rb-r18-aero-package, Racing Bulls 4-part Performance package (front wing endplate, rear wing flaps, floor body, coke/engine cover). Snapshot pre = locked R18 thursday call; post left empty because the Thursday milestone is locked (no rerun) and the Friday predict runs in GitHub Actions after FP2.appliednot yet graded—
R18Technical & upgradesMcLaren, Audi, Alpine, Red Bull Racing, CadillacBrady approved 2026-10-23 for the record (R18 Friday /brain): field-r18-minor-updates (McLaren 3P, Audi 3P, Alpine 2P, RBR 1P/1R, Cadillac 1P/1 cooling).appliedno measurable effect0.00
R18Pu Change Back Of GridBORnote withheld — it described how the model works rather than what happenedappliedhurt−3.70
R18Grid PenaltyCOLnote withheld — it described how the model works rather than what happenedappliedhelped+2.85
R18Weather TrackVER, HADnote withheld — it described how the model works rather than what happenedappliednot yet graded—
R18Driver fitnessVERNot applied.rejectednot yet graded—
R18Form NarrativeFerrarinote withheld — it described how the model works rather than what happenedrejectednot yet graded—
R17Pu Change Back Of GridRUSThe model only forecasts the GP, so this is race-only. Snapshots: pre = final call without this proposal, post = final call.appliedhelped+0.54
R17Weather TrackThe fieldBrady approved 2026-10-08 (R17 Thursday /brain): Singapore heat hazard + two Saturday rain cells (Sprint / GP quali), Sunday mostly dry. Snapshots: pre = final call without this proposal, post = final call.appliedno measurable effect0.00
R17Driver & team formCadillacNo adjustment applied; post = pre (zero-magnitude proposal).rejectedno measurable effect0.00
R17ReliabilityHADBrady declined 2026-10-10 (R17 Saturday /brain): Hadjar reliability chain (Sprint PU + quali gearbox; σ+0.03 / dnf +0.03). No adjustment applied; post = pre.rejectedno measurable effect0.00
R17Grid Penalty PendingALONo adjustment applied; post = pre (zero-magnitude proposal).rejectedno measurable effect0.00
R17Team OrdersMcLarenBrady declined 2026-10-10 (R17 Saturday /brain): McLaren NOR/PIA intra-team clash (Sprint Turn 5; σ+0.02). No adjustment applied; post = pre.rejectedno measurable effect0.00
R16Pu Change Back Of GridLINSnapshots: pre = final call without this proposal, post = final call.appliedhurt−4.59
R16Grid PenaltyHADApplied once to the pre-quali grid; FIA docs/grid supersede it later. Snapshots: pre = final call without this proposal, post = final call.appliedhurt−3.01
R16Weather TrackThe fieldSnapshots: pre = final call without this proposal, post = final call.appliedno measurable effect0.00
R16Technical & upgradesMercedesBrady declined 2026-10-01: Mercedes upgrade chatter stays OFF; waits for Friday's /brain (FIA Car Presentation doc) — no pace credit invented. No adjustment applied.rejectednot yet graded—
R16Driver & team formANTNo adjustment applied.rejectednot yet graded—
R16Technical & upgradesMercedesBrady approved 2026-10-01 (R16 Friday /brain draft): mer-r16-floor-package, Mercedes 7-part Performance package (floor/diffuser/rear suspension fairings/rear corner/rear bodywork). Supersedes Thursday's declined mer-r16-upgrade-chatter. Snapshots: pre = thursday call without this proposal, post = with it.appliedno measurable effect0.00
R16Technical & upgradesRed Bull Racing, Ferrari, Racing Bulls, Haas F1 Team, Alpine, McLarenBrady declined 2026-10-01: field-r16-minor-updates (RBR floor board, Ferrari diffuser, Racing Bulls front flap + rear-wing aux, Haas RIS device, Alpine brake-cooling drum exit, McLaren cooling engine cover).rejectednot yet graded—
R16Pu Change Back Of GridLINBrady declined 2026-10-01: lin-r16-pu-doc-watch (no-action watch; Doc 9 pre-event shows no new LIN PU elements yet).rejectednot yet graded—
R16Grid PenaltyCOLAuto-applied FIA hard facts missed on first post-quali publish: COL Baku restart collision converted to 5-place Sepang drop + FIA Doc 18 5th ICE = 10-place drop (total 15). Post-quali regenerates with FastF1 quali class + news CSV.appliednot yet graded—
R16Grid PenaltyBahrain Grand Prixnote withheld — it described how the model works rather than what happenedappliednot yet graded—