Round 2 · 1987

Autodromo Enzo e Dino Ferrari

Imola, Italy · May 03, 1987 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R021987
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27 stored results 27/27 Elo snapshots 25/27 numbered grid slots 0/27 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.

0/27 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.

0/27 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 → P27vs expectedReading
N. MansellWilliams #32380 No error range P1 Not assessedQualifying unavailable
A. SennaTeam Lotus #82141 No error range P2 Not assessedQualifying unavailable
M. AlboretoFerrari #142080 No error range P3 Not assessedQualifying unavailable
S. JohanssonMcLaren #42326 No error range P4 Not assessedQualifying unavailable
M. BrundleZakspeed #122092 No error range P5 Not assessedQualifying unavailable
S. NakajimaTeam Lotus #152061 No error range DNFOut of fuel Not assessedQualifying unavailable
C. DannerZakspeed #102131 No error range P7 Not assessedQualifying unavailable
P. StreiffTyrrell #112094 No error range P8 Not assessedQualifying unavailable
R. PatreseBrabham #172022 No error range P9 Not assessedQualifying unavailable
P. AlliotLarrousse #132091 No error range P10 Not assessedQualifying unavailable
D. WarwickArrows #221971 No error range DNFOut of fuel Not assessedQualifying unavailable
A. CaffiOsella #182012 No error range DNFOut of fuel Not assessedQualifying unavailable
P. FabreAGS #162022 No error range P13 Not assessedQualifying unavailable
T. FabiBenetton #201999 No error range DNFTurbo Not assessedQualifying unavailable
T. BoutsenBenetton #72186 No error range DNFEngine Not assessedQualifying unavailable
E. CheeverArrows #231957 No error range DNFClutch Not assessedQualifying unavailable
J. PalmerTyrrell #92140 No error range DNFClutch Not assessedQualifying unavailable
A. de CesarisBrabham #211991 No error range DNFSpun off Not assessedQualifying unavailable
A. CamposMinardi #241945 No error range DNFGearbox Not assessedQualifying unavailable
G. TarquiniOsella #192000 No error range DNFGearbox Not assessedQualifying unavailable
A. NanniniMinardi #261907 No error range DNFTurbo Not assessedQualifying unavailable
I. CapelliMarch #251940 No error range DNFEngine Not assessedQualifying unavailable
G. BergerFerrari #62198 No error range DNFElectrical Not assessedQualifying unavailable
A. ProstMcLaren #22440 No error range DNFElectrical Not assessedQualifying unavailable
P. GhinzaniLigier #271808 No error range DNFHandling Not assessedQualifying unavailable
N. PiquetWilliams #12450 Grid unnumbered No error range DNFInjury Not assessedQualifying unavailable
R. ArnouxLigier #52226 Grid unnumbered No error range DNFSuspension 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 loss

Piquet−151.9 Elo

Largest grid-to-finish gain

Streiff+12 places

The bigger picture

Championship after this round

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

  1. 1 Mansell 10pts +5
  2. 2 Prost 9pts −1
  3. 3 Johansson 7pts 0
  4. 4 Senna 6pts +10
  5. 5 Piquet 6pts −3

Movement since round 1. 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.

Osella

CaffiDNF+32.4 Elo
TarquiniDNF−21.3 Elo

Non-finish recorded; no finishing gap comparison.

Benetton

FabiDNF+21.3 Elo
BoutsenDNF−28.9 Elo

Non-finish recorded; no finishing gap comparison.

Minardi

CamposDNF−2.2 Elo
NanniniDNF−8.4 Elo

Non-finish recorded; no finishing gap comparison.

Ligier

GhinzaniDNF−18.9 Elo
ArnouxDNF−122.0 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 →
27
Result Entries
Avg Elo
Highest Elo (Mansell)
17
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇬🇧 N.Mansell 2 +1 +9 10 P1 +34.0 2,414
P2 🇧🇷 A.Senna 1 -1 +6 6 P4 +73.0 2,214
P3 🇮🇹 M.Alboreto 6 +3 +4 4 P6 +80.1 2,160
P4 🇸🇪 S.Johansson 8 +4 +3 7 P3 +21.3 2,348
P5 🇬🇧 M.Brundle 14 +9 +2 2 P9 +63.3 2,155
DNF 🇯🇵 S.Nakajima 12 +1 1 P10 +63.5 2,124
P7 🇩🇪 C.Danner 17 +10 0 0 P11 +40.0 2,171
P8 🇫🇷 P.Streiff 20 +12 0 0 P12 +41.5 2,136
P9 🇮🇹 R.Patrese 7 -2 0 0 P13 +51.4 2,073
P10 🇫🇷 P.Alliot 21 +11 0 0 P15 +28.2 2,119
DNF 🇬🇧 D.Warwick 10 0 0 P16 +48.7 2,020
DNF 🇮🇹 A.Caffi 19 0 0 P18 +32.4 2,045
P13 🇫🇷 P.Fabre 24 +11 0 0 P17 +23.0 2,045
DNF 🇮🇹 T.Fabi 4 0 0 P20 +21.3 2,020
DNF 🇧🇪 T.Boutsen 11 0 2 P8 -28.9 2,157
DNF 🇺🇸 E.Cheever 9 0 0 P19 +16.5 1,973
DNF 🇬🇧 J.Palmer 23 0 0 P14 -32.6 2,107
DNF 🇮🇹 A.de Cesaris 13 0 0 P21 -5.2 1,986
DNF 🇪🇸 A.Campos 16 0 0 P23 -2.2 1,943
DNF 🇮🇹 G.Tarquini 25 0 0 P24 -21.3 1,979
DNF 🇮🇹 A.Nannini 15 0 0 P22 -8.4 1,899
DNF 🇮🇹 I.Capelli 22 0 0 P25 -22.3 1,918
DNF 🇦🇹 G.Berger 5 0 3 P7 -87.9 2,110
DNF 🇫🇷 A.Prost 3 0 9 P2 -136.6 2,304
DNF 🇮🇹 P.Ghinzani 18 0 0 P26 -18.9 1,789
DNF 🇧🇷 N.Piquet 0 0 6 P5 -151.9 2,298
DNF 🇫🇷 R.Arnoux 0 0 0 P27 -122.0 2,104

Qualifying results are not available for this race.

Elo Changes