Round 12 · 1991

Autodromo Nazionale di Monza

Monza, Italy · September 08, 1991 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R121991
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34 stored results 34/34 Elo snapshots 26/34 numbered grid slots 0/34 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.

0/34 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.

0/34 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 → P34vs expectedReading
N. MansellWilliams #22421 No error range P1 Not assessedQualifying unavailable
A. SennaMcLaren #12530 No error range P2 Not assessedQualifying unavailable
A. ProstFerrari #142168 No error range P3 Not assessedQualifying unavailable
G. BergerMcLaren #42374 No error range P4 Not assessedQualifying unavailable
M. SchumacherBenetton #251978 No error range P5 Not assessedQualifying unavailable
N. PiquetBenetton #82301 No error range P6 Not assessedQualifying unavailable
A. de CesarisJordan #62310 No error range P7 Not assessedQualifying unavailable
I. CapelliLeyton House #212129 No error range P8 Not assessedQualifying unavailable
G. MorbidelliMinardi #172153 No error range P9 Not assessedQualifying unavailable
E. PirroDallara #152163 No error range P10 Not assessedQualifying unavailable
É. ComasLigier #192140 No error range P11 Not assessedQualifying unavailable
M. BlundellBrabham #112216 No error range P12 Not assessedQualifying unavailable
M. BrundleBrabham #132181 No error range P13 Not assessedQualifying unavailable
M. HäkkinenTeam Lotus #182151 No error range P14 Not assessedQualifying unavailable
M. GugelminLeyton House #222118 No error range P15 Not assessedQualifying unavailable
N. LariniLambo #291902 No error range P16 Not assessedQualifying unavailable
O. GrouillardFondmetal #261963 No error range DNFEngine Not assessedQualifying unavailable
J. JärvilehtoDallara #162161 No error range DNFOverheating Not assessedQualifying unavailable
S. ModenaTyrrell #92266 No error range DNFEngine Not assessedQualifying unavailable
J. AlesiFerrari #72308 No error range DNFEngine Not assessedQualifying unavailable
R. PatreseWilliams #32415 No error range DNFGearbox Not assessedQualifying unavailable
S. NakajimaTyrrell #202140 No error range DNFThrottle Not assessedQualifying unavailable
É. BernardLola #232065 No error range DNFEngine Not assessedQualifying unavailable
P. MartiniMinardi #122202 No error range DNFSpun off Not assessedQualifying unavailable
R. MorenoJordan #52318 No error range DNFSpun off Not assessedQualifying unavailable
T. BoutsenLigier #102259 No error range DNFSpun off Not assessedQualifying unavailable
M. AlboretoFootwork #281922 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
M. BartelsTeam Lotus #271927 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
E. van de PoeleLambo #321775 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
A. SuzukiLola #242013 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
F. BarbazzaAGS #331765 Grid unnumbered No error range DNQDid not prequalify Not assessedQualifying unavailable
G. TarquiniAGS #311807 Grid unnumbered No error range DNQDid not prequalify Not assessedQualifying unavailable
A. CaffiFootwork #301853 Grid unnumbered No error range DNQDid not prequalify Not assessedQualifying unavailable
P. ChavesColoni #341650 Grid unnumbered No error range DNQDid not prequalify 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

Moreno−91.1 Elo

Largest grid-to-finish gain

Comas+11 places

The bigger picture

Championship after this round

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

  1. 1 Senna 77pts 0
  2. 2 Mansell 59pts 0
  3. 3 Patrese 34pts 0
  4. 4 Berger 31pts 0
  5. 5 Prost 25pts +1

Movement since round 11. 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.

Ferrari

ProstP3+80.7 Elo
AlesiDNF−57.7 Elo

Non-finish recorded; no finishing gap comparison.

Ligier

ComasP11+37.0 Elo
BoutsenDNF−84.8 Elo

Non-finish recorded; no finishing gap comparison.

Lola

BernardDNF−20.5 Elo
SuzukiDNQ−52.6 Elo

Non-finish recorded; no finishing gap comparison.

AGS

BarbazzaDNQ−13.4 Elo
TarquiniDNQ−25.8 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 →
34
Result Entries
Avg Elo
Highest Elo (Senna)
18
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇬🇧 N.Mansell 2 +1 +10 59 P2 +39.8 2,461
P2 🇧🇷 A.Senna 1 -1 +6 77 P1 +17.7 2,548
P3 🇫🇷 A.Prost 5 +2 +4 25 P5 +80.7 2,248
P4 🇦🇹 G.Berger 3 -1 +3 31 P4 +29.3 2,404
P5 🇩🇪 M.Schumacher 7 +2 +2 2 P16 +111.8 2,090
P6 🇧🇷 N.Piquet 8 +2 +1 23 P6 +31.4 2,333
P7 🇮🇹 A.de Cesaris 14 +7 0 9 P9 +23.2 2,334
P8 🇮🇹 I.Capelli 12 +4 0 1 P19 +58.6 2,187
P9 🇮🇹 G.Morbidelli 17 +8 0 0 P24 +46.6 2,200
P10 🇮🇹 E.Pirro 16 +6 0 1 P17 +38.0 2,201
P11 🇫🇷 É.Comas 22 +11 0 0 P28 +37.0 2,177
P12 🇬🇧 M.Blundell 11 -1 0 1 P18 +12.8 2,229
P13 🇬🇧 M.Brundle 19 +6 0 0 P30 +14.9 2,196
P14 🇫🇮 M.Häkkinen 25 +11 0 2 P15 +15.7 2,167
P15 🇧🇷 M.Gugelmin 18 +3 0 0 P26 +17.3 2,135
P16 🇮🇹 N.Larini 23 +7 0 0 P27 +58.0 1,960
DNF 🇫🇷 O.Grouillard 26 0 0 P32 +39.7 2,003
DNF 🇫🇮 J.Järvilehto 20 0 4 P11 -11.8 2,150
DNF 🇮🇹 S.Modena 13 0 9 P8 -42.4 2,224
DNF 🇫🇷 J.Alesi 6 0 14 P7 -57.7 2,250
DNF 🇮🇹 R.Patrese 4 0 34 P3 -84.6 2,331
DNF 🇯🇵 S.Nakajima 15 0 2 P14 -31.9 2,108
DNF 🇫🇷 É.Bernard 24 0 1 P20 -20.5 2,045
DNF 🇮🇹 P.Martini 10 0 3 P13 -59.0 2,143
DNF 🇧🇷 R.Moreno 9 0 8 P10 -91.1 2,227
DNF 🇧🇪 T.Boutsen 21 0 0 P23 -84.8 2,175
DNQ 🇮🇹 M.Alboreto 0 0 0 P34 -14.6 1,907
DNQ 🇩🇪 M.Bartels 0 0 0 P37 -21.9 1,905
DNQ 🇧🇪 E.van de Poele 0 0 0 P31 -2.3 1,772
DNQ 🇯🇵 A.Suzuki 0 0 1 P21 -52.6 1,961
DNQ 🇮🇹 F.Barbazza 0 0 0 P36 -13.4 1,751
DNQ 🇮🇹 G.Tarquini 0 0 0 P29 -25.8 1,781
DNQ 🇮🇹 A.Caffi 0 0 0 P35 -39.6 1,813
DNQ 🇵🇹 P.Chaves 0 0 0 P38 -18.7 1,631

Qualifying results are not available for this race.

Elo Changes