Round 13 · 2009

Autodromo Nazionale di Monza

Monza, Italy · September 13, 2009 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R132009
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20 stored results 20/20 Elo snapshots 20/20 numbered grid slots 0/20 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.

Fit on 437 earlier finishes across 30 races, 2000–2009. No results from this race enter its expectation.

0/20 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.

0/20 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 → P20vs expectedReading
R. BarrichelloBrawn #42304 No error range P1 Not assessedQualifying unavailable
J. ButtonBrawn #52278 No error range P2 Not assessedQualifying unavailable
K. RäikkönenFerrari #32307 No error range P3 Not assessedQualifying unavailable
A. SutilForce India #181943 No error range P4 Not assessedQualifying unavailable
F. AlonsoRenault #122150 No error range P5 Not assessedQualifying unavailable
H. KovalainenMcLaren #82186 No error range P6 Not assessedQualifying unavailable
N. HeidfeldBMW Sauber #92178 No error range P7 Not assessedQualifying unavailable
S. VettelRed Bull #62220 No error range P8 Not assessedQualifying unavailable
G. FisichellaFerrari #132108 No error range P9 Not assessedQualifying unavailable
K. NakajimaWilliams #162016 No error range P10 Not assessedQualifying unavailable
T. GlockToyota #72193 No error range P11 Not assessedQualifying unavailable
L. HamiltonMcLaren #112154 No error range DNFAccident Not assessedQualifying unavailable
S. BuemiToro Rosso #201924 No error range P13 Not assessedQualifying unavailable
J. TrulliToyota #142093 No error range P14 Not assessedQualifying unavailable
R. GrosjeanRenault #171959 No error range P15 Not assessedQualifying unavailable
N. RosbergWilliams #22310 No error range P16 Not assessedQualifying unavailable
V. LiuzziForce India #152040 No error range DNFTransmission Not assessedQualifying unavailable
J. AlguersuariToro Rosso #191932 No error range DNFRetired Not assessedQualifying unavailable
R. KubicaBMW Sauber #102158 No error range DNFOil leak Not assessedQualifying unavailable
M. WebberRed Bull #12343 No error range DNFCollision Not assessedQualifying unavailable
How useful is the model? See the historical check

Average absolute error on 437 classified finishes in 30 earlier races within the last ten years. Each race was held out and predicted using only older races; all three models use the same samples.

Elo + qualifying
2.57places
Qualifying only
2.65places
Elo only
3.15places

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

Sutil+86.6 Elo

Largest Elo loss

Webber−110.8 Elo

Largest grid-to-finish gain

Heidfeld+8 places

The bigger picture

Championship after this round

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

  1. 1 Button 80pts 0
  2. 2 Barrichello 66pts 0
  3. 3 Vettel 54pts 0
  4. 4 Webber 51.5pts 0
  5. 5 Räikkönen 40pts 0

Movement since round 12. 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.

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 →
20
Result Entries
Avg Elo
Highest Elo (Barrichello)
5
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇧🇷 R.Barrichello 5 +4 +10 66 P2 +43.3 2,347
P2 🇬🇧 J.Button 6 +4 +8 80 P1 +40.0 2,318
P3 🇫🇮 K.Räikkönen 3 +6 40 P5 +27.2 2,334
P4 🇩🇪 A.Sutil 2 -2 +5 5 P16 +86.6 2,030
P5 🇪🇸 F.Alonso 8 +3 +4 20 P11 +40.9 2,191
P6 🇫🇮 H.Kovalainen 4 -2 +3 20 P10 +26.1 2,213
P7 🇩🇪 N.Heidfeld 15 +8 +2 12 P13 +19.9 2,198
P8 🇩🇪 S.Vettel 9 +1 +1 54 P3 +4.0 2,224
P9 🇮🇹 G.Fisichella 14 +5 0 8 P14 +18.2 2,126
P10 🇯🇵 K.Nakajima 17 +7 0 0 P19 +27.8 2,043
P11 🇩🇪 T.Glock 16 +5 0 16 P12 -14.1 2,179
DNF 🇬🇧 L.Hamilton 1 0 27 P7 -14.2 2,140
P13 🇨🇭 S.Buemi 19 +6 0 3 P17 +19.6 1,944
P14 🇮🇹 J.Trulli 11 -3 0 22.5 P8 -17.9 2,075
P15 🇫🇷 R.Grosjean 12 -3 0 0 P22 -1.4 1,958
P16 🇩🇪 N.Rosberg 18 +2 0 30.5 P6 -74.3 2,235
DNF 🇮🇹 V.Liuzzi 7 0 0 P24 -31.0 2,009
DNF 🇪🇸 J.Alguersuari 20 0 0 P23 -20.4 1,911
DNF 🇵🇱 R.Kubica 13 0 8 P15 -69.5 2,089
DNF 🇦🇺 M.Webber 10 0 51.5 P4 -110.8 2,232

Qualifying results are not available for this race.

Elo Changes