Round 12 · 2009 · 30 Aug

Circuit de Spa-Francorchamps

Spa, Belgium

Results & qualifying →

Race debrief

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Elo × qualifying → race result

Did they beat the expectation?

Experimental · v1
Model & data

A strong driver recovering from a poor qualifying position isn't automatically a surprise. This model estimates a finish from both pre-race Elo and qualifying, then compares it with what happened.

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 423 earlier finishes across 29 races, 2000–2009. No results from this race enter its expectation.

20 stored results 20/20 Elo snapshots 20/20 numbered grid slots 20/20 qualifying results

Missing Elo or qualifying stays visible in the full grid. A grid position is not used as a qualifying result.

Top 3

Beat the estimate
  1. Kimi Räikkönen Ferrari · Elo #5 · Q6

    Expected P5.3 Finished P1

    +4.3places
  2. Heikki Kovalainen McLaren · Elo #10 · Q15

    Expected P10.1 Finished P6

    +4.1places
  3. Sebastian Vettel Red Bull · Elo #9 · Q8

    Expected P6.9 Finished P3

    +3.9places

Flop 3

Below the estimate
  1. Timo Glock Toyota · Elo #7 · Q7

    Expected P6.1 Finished P10

    −3.9places
  2. Mark Webber Red Bull · Elo #1 · Q9

    Expected P5.8 Finished P9

    −3.2places
  3. Rubens Barrichello Brawn · Elo #4 · Q4

    Expected P4.2 Finished P7

    −2.8places
14/20 entrants assessed. DNFs excluded. How we rank

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
K. RäikkönenFerrari #52255 P6 P5.3P1–P10 P1 +4.3places In range
G. FisichellaForce India #142020 P1 P4.9P1–P9 P2 +2.9places In range
S. VettelRed Bull #92168 P8 P6.9P2–P11 P3 +3.9places In range
R. KubicaBMW Sauber #132101 P5 P6.4P2–P11 P4 +2.4places In range
N. HeidfeldBMW Sauber #122135 P3 P5.3P1–P10 P5 +0.3places In range
H. KovalainenMcLaren #102155 P15 P10.1P6–P15 P6 +4.1places In range
R. BarrichelloBrawn #42308 P4 P4.2P1–P9 P7 −2.8places In range
N. RosbergWilliams #32324 P10 P6.6P2–P11 P8 −1.4places In range
M. WebberRed Bull #12372 P9 P5.8P1–P10 P9 −3.2places In range
T. GlockToyota #72202 P7 P6.1P2–P11 P10 −3.9places In range
A. SutilForce India #191907 P11 P10.1P6–P15 P11 −0.9places In range
S. BuemiToro Rosso #201893 P16 P12.4P8–P17 P12 +0.4places In range
K. NakajimaWilliams #152012 P18 P12.3P8–P17 P13 −0.7places In range
L. BadoerFerrari #181971 P20 P13.8P9–P18 P14 −0.2places In range
F. AlonsoRenault #82197 P13 P8.8P4–P13 DNFRetired — Not assessedDNF: Retired
J. TrulliToyota #112136 P2 P4.7P1–P9 DNFBrakes — Not assessedDNF: Brakes
J. ButtonBrawn #22369 P14 P8.1P4–P13 DNFCollision — Not assessedDNF: Collision
R. GrosjeanRenault #161990 P19 P13.0P8–P18 DNFCollision — Not assessedDNF: Collision
L. HamiltonMcLaren #62239 P12 P8.0P3–P13 DNFCollision — Not assessedDNF: Collision
J. AlguersuariToro Rosso #171976 P17 P12.3P8–P17 DNFCollision — Not assessedDNF: Collision
How useful is the model? See the historical check

Average absolute error on 423 classified finishes in 29 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
2.59places
Qualifying only
2.67places
Elo only
3.14places

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

Button−91.2 Elo

The bigger picture

Championship after this round

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

  1. 1 Button 72pts 0
  2. 2 Barrichello 56pts 0
  3. 3 Vettel 53pts +1
  4. 4 Webber 51.5pts −1
  5. 5 Räikkönen 34pts +2

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.

Red Bull

VettelP3+52.3 Elo
WebberP9−29.5 Elo

6 places apart at the finish.

Q3 · Vettel 0.027s faster

McLaren

KovalainenP6+31.5 Elo
HamiltonDNF−85.3 Elo

Non-finish recorded; no finishing gap comparison.

Q2 · Hamilton 0.137s faster

Brawn

BarrichelloP7−4.0 Elo
ButtonDNF−91.2 Elo

Non-finish recorded; no finishing gap comparison.

Q2 · Barrichello 0.417s faster

Toyota

GlockP10−8.5 Elo
TrulliDNF−42.6 Elo

Non-finish recorded; no finishing gap comparison.

Q3 · Trulli 0.282s faster

Toro Rosso

BuemiP12+30.6 Elo
AlguersuariDNF−44.4 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Buemi 0.351s faster

Renault

AlonsoDNF−46.4 Elo
GrosjeanDNF−31.3 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Alonso 0.652s faster

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 →