Round 8 · 1983

Circuit Gilles Villeneuve

Montreal, Canada · June 12, 1983 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

What did we expect after qualifying—and who beat it?

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28 stored results 28/28 Elo snapshots 26/28 numbered grid slots 0/28 qualifying results
Elo × qualifying → race result

Did they beat the expectation?

A strong driver recovering from a poor qualifying position isn't automatically a surprise. This model estimates a finish from both inputs, then compares it with what happened.

Experimental · v1

Expected finish assumes a classified finish. DNFs stay in the full grid but receive no performance verdict. Qualifying is not the starting grid; grid differences are flagged, not silently substituted.

This race has insufficient earlier history: 0/20 races and 0/200 classified finishes with Elo and qualifying. Estimates are withheld.

0/28 entrants have an estimate. Missing Elo or qualifying stays visible below; a grid position is not used as a qualifying result.

Top 3

Beat the estimate

No comparable estimates available for this race yet.

Flop 3

Below the estimate

No comparable estimates available for this race yet.

0/28 entrants assessed. Up to three per side, ranked by expected minus actual finish. DNFs, missing estimates and gaps rounding to 0.0 are excluded. “Flop” means below the model's estimate—not poor driving. A ranked gap can still be inside the usual error range.

Full grid: pre-race Elo rank, qualifying position, estimated finish, actual result and difference from expectation. Positive differences mean finishing ahead of the estimate.
DriverPre-race EloQualifyingExpectedResultP1 ← position → P28vs expectedReading
R. ArnouxFerrari #92176 No error range P1 Not assessedQualifying unavailable
E. CheeverRenault #152133 No error range P2 Not assessedQualifying unavailable
P. TambayFerrari #62246 No error range P3 Not assessedQualifying unavailable
K. RosbergWilliams #22431 No error range P4 Not assessedQualifying unavailable
A. ProstRenault #12442 No error range P5 Not assessedQualifying unavailable
J. WatsonMcLaren #82194 No error range P6 Not assessedQualifying unavailable
T. BoutsenArrows #212058 No error range P7 Not assessedQualifying unavailable
M. AlboretoTyrrell #72230 No error range P8 Not assessedQualifying unavailable
M. WinkelhockATS #242016 No error range P9 Not assessedQualifying unavailable
M. BaldiAlfa Romeo #162118 No error range P10 Not assessedQualifying unavailable
D. SullivanTyrrell #142136 No error range DSQDisqualified Not assessedQualifying unavailable
R. PatreseBrabham #232018 No error range DNFGearbox Not assessedQualifying unavailable
D. WarwickToleman #202079 No error range DNFTurbo Not assessedQualifying unavailable
B. GiacomelliToleman #122154 No error range DNFEngine Not assessedQualifying unavailable
N. MansellTeam Lotus #112165 No error range DNFHandling Not assessedQualifying unavailable
A. de CesarisAlfa Romeo #172104 No error range DNFEngine Not assessedQualifying unavailable
J. LaffiteWilliams #42347 No error range DNFGearbox Not assessedQualifying unavailable
R. BoeselLigier #102166 No error range DNFHalfshaft Not assessedQualifying unavailable
R. GuerreroTheodore #251980 No error range DNFEngine Not assessedQualifying unavailable
C. FabiOsella #271895 No error range DNFEngine Not assessedQualifying unavailable
J. CecottoTheodore #192086 No error range DNFDifferential Not assessedQualifying unavailable
N. PiquetBrabham #32371 No error range DNFThrottle Not assessedQualifying unavailable
N. LaudaMcLaren #132141 No error range DNFSpun off Not assessedQualifying unavailable
E. de AngelisTeam Lotus #182100 No error range DNFThrottle Not assessedQualifying unavailable
M. SurerArrows #52285 No error range DNFTransmission Not assessedQualifying unavailable
J. JarierLigier #222019 No error range DNFGearbox Not assessedQualifying unavailable
J. Villeneuve Sr.RAM #261910 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
P. GhinzaniOsella #281774 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
How useful is the model? See the historical check

There is not enough earlier history for a rolling hold-out check yet.

The range scales the 80th percentile of earlier held-out absolute errors to this field size, rounding outward. It is an empirical error guide, not a guaranteed 80% chance for a particular driver. We require at least five checked races and 100 checked finishes before showing it.

Inputs are field-normalised Elo rank and qualifying position. The target is position among all race entries, trained only on classified finishers. Estimates are averages, not a unique predicted finishing order. Penalties, the circuit, weather, incidents and strategy aren't model inputs. Historical qualifying coverage is patchy; this is an exploratory backtest on corrected records, not proof of live forecasting accuracy.

The rating ledger

What changed in Elo?

These are actual rating changes. The expectation model above does not change Elo or fantasy scoring.

Largest Elo gain

Cheever+92.7 Elo

Largest Elo loss

Surer−114.6 Elo

Largest grid-to-finish gain

Baldi+16 places

The bigger picture

Championship after this round

Top five in the stored standings. Points include sprint results where applicable.

  1. 1 Prost 30pts 0
  2. 2 Piquet 27pts 0
  3. 3 Tambay 27pts 0
  4. 4 Rosberg 25pts 0
  5. 5 Arnoux 17pts +4

Movement since round 7. A dash means the earlier standing is unavailable.

Explore the season →
Across the garage

Teammate results

Two-driver constructor entries from this race. A result comparison, not an adjustment for strategy or reliability.

McLaren

WatsonP6+47.5 Elo
LaudaDNF−64.6 Elo

Non-finish recorded; no finishing gap comparison.

Arrows

BoutsenP7+74.8 Elo
SurerDNF−114.6 Elo

Non-finish recorded; no finishing gap comparison.

Brabham

PatreseDNF+47.5 Elo
PiquetDNF−110.2 Elo

Non-finish recorded; no finishing gap comparison.

Ligier

BoeselDNF−34.1 Elo
JarierDNF−56.1 Elo

Non-finish recorded; no finishing gap comparison.

Osella

FabiDNF+14.9 Elo
GhinzaniDNQ−25.1 Elo

Non-finish recorded; no finishing gap comparison.

What this analysis can—and cannot—tell you

This debrief is calculated from stored results and rating snapshots. The experimental expectation model learns from earlier races only, using Elo rank and qualifying together; it never feeds back into Elo. It is not a separately reviewed race report.

Elo uses the result order, including retirements. It does not isolate driver skill from the car, reliability, penalties or strategy. Elo seed comparisons use pre-race ratings, never today's ratings. Equal ratings share the midpoint of their rank range (for example, tied first and second become seed 1.5).

Grid gains use numbered starting slots and classified finishes only. Zero or missing grid values are excluded; a position gained is not necessarily an overtake. Qualifying gaps use the latest segment both teammates have a valid time for, never Q1 against Q3.

Lap-by-lap pace, tyre stints, pit-stop execution and safety-car effects are not available in this report. Missing data is omitted, not inferred.

Read the Elo methodology →
28
Result Entries
Avg Elo
Highest Elo (Prost)
18
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇫🇷 R.Arnoux 1 +9 17 P5 +89.2 2,265
P2 🇺🇸 E.Cheever 6 +4 +6 14 P7 +92.7 2,226
P3 🇫🇷 P.Tambay 4 +1 +4 27 P3 +57.1 2,303
P4 🇫🇮 K.Rosberg 9 +5 +3 25 P4 +12.3 2,444
P5 🇫🇷 A.Prost 2 -3 +2 30 P1 +3.2 2,446
P6 🇬🇧 J.Watson 20 +14 +1 16 P6 +47.5 2,242
P7 🇧🇪 T.Boutsen 15 +8 0 0 P16 +74.8 2,133
P8 🇮🇹 M.Alboreto 17 +9 0 9 P10 +23.9 2,254
P9 🇩🇪 M.Winkelhock 7 -2 0 0 P21 +70.2 2,086
P10 🇮🇹 M.Baldi 26 +16 0 1 P13 +37.4 2,155
DSQ 🇺🇸 D.Sullivan 22 0 2 P12 +25.5 2,161
DNF 🇮🇹 R.Patrese 5 0 0 P24 +47.5 2,066
DNF 🇬🇧 D.Warwick 12 0 0 P18 +25.2 2,104
DNF 🇮🇹 B.Giacomelli 10 0 0 P20 -1.3 2,153
DNF 🇬🇧 N.Mansell 18 0 1 P15 -11.5 2,153
DNF 🇮🇹 A.de Cesaris 8 0 0 P25 -3.3 2,101
DNF 🇫🇷 J.Laffite 13 0 10 P9 -68.6 2,278
DNF 🇧🇷 R.Boesel 24 0 0 P19 -34.1 2,132
DNF 🇨🇴 R.Guerrero 21 0 0 P27 +4.7 1,985
DNF 🇮🇹 C.Fabi 25 0 0 P29 +14.9 1,910
DNF 🇻🇪 J.Cecotto 23 0 1 P14 -35.7 2,050
DNF 🇧🇷 N.Piquet 3 0 27 P2 -110.2 2,261
DNF 🇦🇹 N.Lauda 19 0 10 P8 -64.6 2,077
DNF 🇮🇹 E.de Angelis 11 0 0 P22 -61.4 2,039
DNF 🇨🇭 M.Surer 14 0 4 P11 -114.6 2,171
DNF 🇫🇷 J.Jarier 16 0 0 P23 -56.1 1,963
DNQ 🇨🇦 J.Villeneuve Sr. 0 0 0 P31 -39.8 1,871
DNQ 🇮🇹 P.Ghinzani 0 0 0 P30 -25.1 1,749

Qualifying results are not available for this race.

Elo Changes