Round 4 · 1983

Autodromo Enzo e Dino Ferrari

Imola, Italy · May 01, 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
P. TambayFerrari #102245 No error range P1 Not assessedQualifying unavailable
A. ProstRenault #12370 No error range P2 Not assessedQualifying unavailable
R. ArnouxFerrari #32306 No error range P3 Not assessedQualifying unavailable
K. RosbergWilliams #52294 No error range P4 Not assessedQualifying unavailable
J. WatsonMcLaren #112205 No error range P5 Not assessedQualifying unavailable
M. SurerArrows #22314 No error range P6 Not assessedQualifying unavailable
J. LaffiteWilliams #72278 No error range P7 Not assessedQualifying unavailable
C. SerraArrows #192067 No error range P8 Not assessedQualifying unavailable
R. BoeselLigier #182084 No error range P9 Not assessedQualifying unavailable
M. BaldiAlfa Romeo #202054 No error range DNFEngine Not assessedQualifying unavailable
M. WinkelhockATS #232019 No error range P11 Not assessedQualifying unavailable
N. MansellTeam Lotus #152105 No error range DNFSpun off Not assessedQualifying unavailable
R. PatreseBrabham #212050 No error range DNFSpun off Not assessedQualifying unavailable
A. de CesarisAlfa Romeo #132123 No error range DNFIgnition Not assessedQualifying unavailable
E. de AngelisTeam Lotus #142106 No error range DNFHandling Not assessedQualifying unavailable
N. PiquetBrabham #62290 No error range DNFEngine Not assessedQualifying unavailable
J. JarierLigier #222033 No error range DNFRadiator Not assessedQualifying unavailable
D. SullivanTyrrell #172090 No error range DNFCollision Not assessedQualifying unavailable
D. WarwickToleman #251985 No error range DNFSpun off Not assessedQualifying unavailable
C. FabiOsella #261969 No error range DNFSpun off Not assessedQualifying unavailable
B. GiacomelliToleman #162103 No error range DNFSuspension Not assessedQualifying unavailable
N. LaudaMcLaren #42306 No error range DNFSpun off Not assessedQualifying unavailable
J. CecottoTheodore #122166 No error range DNFSpun off Not assessedQualifying unavailable
M. AlboretoTyrrell #92265 No error range DNFCollision Not assessedQualifying unavailable
R. GuerreroTheodore #242002 No error range DNFSpun off Not assessedQualifying unavailable
E. CheeverRenault #82265 No error range DNFTurbo Not assessedQualifying unavailable
E. SalazarRAM #271945 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
P. GhinzaniOsella #281858 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

Tambay+72.8 Elo

Largest Elo loss

Cheever−116.8 Elo

Largest grid-to-finish gain

Watson+19 places

The bigger picture

Championship after this round

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

  1. 1 Prost 15pts +2
  2. 2 Piquet 15pts −1
  3. 3 Tambay 14pts +3
  4. 4 Watson 11pts 0
  5. 5 Lauda 10pts −3

Movement since round 3. 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.

Renault

ProstP2+37.6 Elo
CheeverDNF−116.8 Elo

Non-finish recorded; no finishing gap comparison.

McLaren

WatsonP5+53.1 Elo
LaudaDNF−96.7 Elo

Non-finish recorded; no finishing gap comparison.

Ligier

BoeselP9+55.0 Elo
JarierDNF+8.7 Elo

Non-finish recorded; no finishing gap comparison.

Brabham

PatreseDNF+34.0 Elo
PiquetDNF−48.8 Elo

Non-finish recorded; no finishing gap comparison.

Osella

FabiDNF+1.6 Elo
GhinzaniDNQ−35.8 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 🇫🇷 P.Tambay 3 +2 +9 14 P3 +72.8 2,317
P2 🇫🇷 A.Prost 4 +2 +6 15 P1 +37.6 2,407
P3 🇫🇷 R.Arnoux 1 -2 +4 8 P6 +43.6 2,350
P4 🇫🇮 K.Rosberg 11 +7 +3 5 P8 +39.0 2,333
P5 🇬🇧 J.Watson 24 +19 +2 11 P4 +53.1 2,258
P6 🇨🇭 M.Surer 12 +6 +1 4 P10 +19.8 2,333
P7 🇫🇷 J.Laffite 16 +9 0 7 P7 +20.6 2,298
P8 🇧🇷 C.Serra 20 +12 0 0 P13 +66.7 2,134
P9 🇧🇷 R.Boesel 25 +16 0 0 P12 +55.0 2,139
DNF 🇮🇹 M.Baldi 10 0 0 P19 +55.2 2,109
P11 🇩🇪 M.Winkelhock 7 -4 0 0 P20 +56.4 2,076
DNF 🇬🇧 N.Mansell 15 0 0 P21 +27.4 2,132
DNF 🇮🇹 R.Patrese 5 0 0 P18 +34.0 2,084
DNF 🇮🇹 A.de Cesaris 8 0 0 P22 +8.0 2,131
DNF 🇮🇹 E.de Angelis 9 0 0 P26 +4.9 2,111
DNF 🇧🇷 N.Piquet 2 0 15 P2 -48.8 2,241
DNF 🇫🇷 J.Jarier 19 0 0 P17 +8.7 2,042
DNF 🇺🇸 D.Sullivan 22 0 0 P15 -13.2 2,077
DNF 🇬🇧 D.Warwick 14 0 0 P16 +5.3 1,990
DNF 🇮🇹 C.Fabi 26 0 0 P27 +1.6 1,970
DNF 🇮🇹 B.Giacomelli 17 0 0 P23 -38.5 2,064
DNF 🇦🇹 N.Lauda 18 0 10 P5 -96.7 2,209
DNF 🇻🇪 J.Cecotto 23 0 1 P11 -69.7 2,096
DNF 🇮🇹 M.Alboreto 13 0 0 P14 -102.0 2,163
DNF 🇨🇴 R.Guerrero 21 0 0 P28 -42.9 1,959
DNF 🇺🇸 E.Cheever 6 0 4 P9 -116.8 2,148
DNQ 🇨🇱 E.Salazar 0 0 0 P24 -45.1 1,900
DNQ 🇮🇹 P.Ghinzani 0 0 0 P29 -35.8 1,822

Qualifying results are not available for this race.

Elo Changes