Round 17 · 2005 · 25 Sep

Autódromo José Carlos Pace

São Paulo, Brazil

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 502 earlier finishes across 43 races, 1996–2005. 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. Juan Pablo Montoya McLaren · Elo #6 · Q2

    Expected P3.1 Finished P1

    +2.1places
  2. Kimi Räikkönen McLaren · Elo #2 · Q5

    Expected P3.7 Finished P2

    +1.7places
  3. Michael Schumacher Ferrari · Elo #8 · Q7

    Expected P5.3 Finished P4

    +1.3places

Flop 3

Below the estimate
  1. Mark Webber Williams · Elo #11 · Q14

    Expected P8.5 Finished P17

    −8.5places
  2. Jarno Trulli Toyota · Elo #7 · Q8

    Expected P5.6 Finished P13

    −7.4places
  3. Jacques Villeneuve Sauber · Elo #10 · Q12

    Expected P7.6 Finished P12

    −4.4places
16/20 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
J. Pablo MontoyaMcLaren #62237 P2 P3.1P1–P7 P1 +2.1places In range
K. RäikkönenMcLaren #22387 P5 P3.7P1–P8 P2 +1.7places In range
F. AlonsoRenault #12424 P1 P2.0P1–P6 P3 −1.0places In range
M. SchumacherFerrari #82208 P7 P5.3P1–P10 P4 +1.3places In range
G. FisichellaRenault #92200 P3 P3.9P1–P8 P5 −1.1places In range
R. BarrichelloFerrari #52245 P10 Grid P9 P6.1P2–P10 P6 +0.1places In range
J. ButtonBAR #32304 P4 P3.4P1–P8 P7 −3.6places In range
R. SchumacherToyota #42261 P11 Grid P10 P6.3P2–P11 P8 −1.7places In range
C. KlienRed Bull #152054 P6 P5.9P2–P10 P9 −3.1places In range
T. SatoBAR #172029 P19 P11.3P7–P16 P10 +1.3places In range
F. MassaSauber #132094 P9 Grid P8 P6.8P2–P11 P11 −4.2places In range
J. VilleneuveSauber #102111 P12 Grid P20 P7.6P3–P12 P12 −4.4places In range
J. TrulliToyota #72217 P8 Grid P17 P5.6P1–P10 P13 −7.4places Below range
C. AlbersMinardi #191967 P18 Grid P16 P11.2P7–P16 P14 −2.8places In range
N. KarthikeyanJordan #181967 P17 Grid P15 P10.7P6–P15 P15 −4.3places In range
T. MonteiroJordan #162039 P13 Grid P11 P8.8P4–P13 DNFMechanical — Not assessedDNF: Mechanical
M. WebberWilliams #112106 P14 Grid P12 P8.5P4–P13 P17 −8.5places Below range
R. DoornbosMinardi #201958 P20 Grid P18 P12.1P8–P17 DNFEngine — Not assessedDNF: Engine
A. PizzoniaWilliams #122098 P15 Grid P13 P9.0P5–P13 DNFAccident — Not assessedDNF: Accident
D. CoulthardRed Bull #142058 P16 Grid P14 P9.7P5–P14 DNFAccident — Not assessedDNF: Accident
How useful is the model? See the historical check

Average absolute error on 293 classified finishes in 23 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
2.47places
Qualifying only
2.54places
Elo only
3.01places

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 grid-to-finish gain

Sato+9 places

The bigger picture

Championship after this round

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

  1. 1 Alonso 117pts 0
  2. 2 Räikkönen 94pts 0
  3. 3 Pablo Montoya 60pts +1
  4. 4 Schumacher 60pts −1
  5. 5 Fisichella 45pts +1

Movement since round 16. 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.

BAR

ButtonP7−2.0 Elo
SatoP10+23.6 Elo

3 places apart at the finish.

Red Bull

KlienP9+26.4 Elo
CoulthardDNF−50.7 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Klien 0.955s faster

Jordan

KarthikeyanP15−1.4 Elo
MonteiroDNF−19.7 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Monteiro 1.133s faster

Williams

WebberP17−38.1 Elo
PizzoniaDNF−50.7 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Webber 0.043s 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 →