Round 11 · 1987

Autodromo Nazionale di Monza

Monza, Italy · September 06, 1987 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R111987
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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
N. PiquetWilliams #12465 No error range P1 Not assessedQualifying unavailable
A. SennaTeam Lotus #22405 No error range P2 Not assessedQualifying unavailable
N. MansellWilliams #42322 No error range P3 Not assessedQualifying unavailable
G. BergerFerrari #241972 No error range P4 Not assessedQualifying unavailable
T. BoutsenBenetton #52233 No error range P5 Not assessedQualifying unavailable
S. JohanssonMcLaren #62208 No error range P6 Not assessedQualifying unavailable
T. FabiBenetton #82143 No error range P7 Not assessedQualifying unavailable
P. GhinzaniLigier #142075 No error range P8 Not assessedQualifying unavailable
C. DannerZakspeed #162029 No error range P9 Not assessedQualifying unavailable
R. ArnouxLigier #152036 No error range P10 Not assessedQualifying unavailable
S. NakajimaTeam Lotus #172023 No error range P11 Not assessedQualifying unavailable
P. StreiffTyrrell #92097 No error range P12 Not assessedQualifying unavailable
I. CapelliMarch #202018 No error range P13 Not assessedQualifying unavailable
J. PalmerTyrrell #72207 No error range P14 Not assessedQualifying unavailable
A. ProstMcLaren #32357 No error range P15 Not assessedQualifying unavailable
A. NanniniMinardi #251932 No error range P16 Not assessedQualifying unavailable
M. BrundleZakspeed #132077 No error range DNFGearbox Not assessedQualifying unavailable
P. AlliotLarrousse #102088 No error range DNFSpun off Not assessedQualifying unavailable
A. CamposMinardi #281901 No error range DNFEngine Not assessedQualifying unavailable
E. CheeverArrows #212015 No error range DNFHalfshaft Not assessedQualifying unavailable
F. ForiniOsella #22.52000 No error range DNFTurbo Not assessedQualifying unavailable
A. CaffiOsella #261913 No error range DNFSuspension Not assessedQualifying unavailable
M. AlboretoFerrari #182023 No error range DNFTurbo Not assessedQualifying unavailable
D. WarwickArrows #112087 No error range DNFElectrical Not assessedQualifying unavailable
A. de CesarisBrabham #271909 No error range DNFSuspension Not assessedQualifying unavailable
R. PatreseBrabham #192019 No error range DNFEngine Not assessedQualifying unavailable
N. LariniColoni #22.52000 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
P. FabreAGS #122078 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

Berger+100.3 Elo

Largest Elo loss

Fabre−91.3 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 Piquet 63pts 0
  2. 2 Senna 49pts 0
  3. 3 Mansell 43pts 0
  4. 4 Prost 31pts 0
  5. 5 Johansson 20pts 0

Movement since round 10. 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.

Arrows

CheeverDNF−20.5 Elo
WarwickDNF−65.8 Elo

Non-finish recorded; no finishing gap comparison.

Osella

ForiniDNF−24.0 Elo
CaffiDNF−11.2 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 (Piquet)
12
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇧🇷 N.Piquet 1 +9 63 P1 +22.5 2,487
P2 🇧🇷 A.Senna 4 +2 +6 49 P2 +23.0 2,428
P3 🇬🇧 N.Mansell 2 -1 +4 43 P3 +29.1 2,351
P4 🇦🇹 G.Berger 3 -1 +3 12 P6 +100.3 2,072
P5 🇧🇪 T.Boutsen 6 +1 +2 10 P7 +32.3 2,265
P6 🇸🇪 S.Johansson 11 +5 +1 20 P5 +30.8 2,238
P7 🇮🇹 T.Fabi 7 0 7 P9 +38.6 2,181
P8 🇮🇹 P.Ghinzani 19 +11 0 0 P21 +47.9 2,123
P9 🇩🇪 C.Danner 16 +7 0 0 P22 +52.3 2,081
P10 🇫🇷 R.Arnoux 15 +5 0 1 P19 +43.5 2,080
P11 🇯🇵 S.Nakajima 14 +3 0 6 P10 +39.8 2,063
P12 🇫🇷 P.Streiff 24 +12 0 4 P12 +14.8 2,112
P13 🇮🇹 I.Capelli 25 +12 0 1 P20 +27.0 2,046
P14 🇬🇧 J.Palmer 22 +8 0 4 P14 -24.6 2,183
P15 🇫🇷 A.Prost 5 -10 0 31 P4 -59.9 2,297
P16 🇮🇹 A.Nannini 18 +2 0 0 P24 +26.1 1,958
DNF 🇬🇧 M.Brundle 17 0 2 P16 -14.9 2,062
DNF 🇫🇷 P.Alliot 23 0 1 P18 -24.4 2,063
DNF 🇪🇸 A.Campos 20 0 0 P26 +11.9 1,913
DNF 🇺🇸 E.Cheever 13 0 4 P13 -20.5 1,994
DNF 🇨🇭 F.Forini 26 0 0 P28 -24.0 1,976
DNF 🇮🇹 A.Caffi 21 0 0 P25 -11.2 1,901
DNF 🇮🇹 M.Alboreto 8 0 8 P8 -43.3 1,979
DNF 🇬🇧 D.Warwick 12 0 3 P15 -65.8 2,021
DNF 🇮🇹 A.de Cesaris 10 0 4 P11 -31.3 1,878
DNF 🇮🇹 R.Patrese 9 0 2 P17 -63.2 1,956
DNQ 🇮🇹 N.Larini 0 0 0 P29 -65.6 1,934
DNQ 🇫🇷 P.Fabre 0 0 0 P23 -91.3 1,987

Qualifying results are not available for this race.

Elo Changes