Round 7 · 2009 · 7 Jun

Istanbul Park

Istanbul, Turkey

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 405 earlier finishes across 28 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. Nico Rosberg Williams · Elo #10 · Q9

    Expected P7.5 Finished P5

    +2.5places
  2. Mark Webber Red Bull · Elo #4 · Q4

    Expected P4.2 Finished P2

    +2.2places
  3. Jarno Trulli Toyota · Elo #12 · Q5

    Expected P6.2 Finished P4

    +2.2places

Flop 3

Below the estimate
  1. Sébastien Bourdais Toro Rosso · Elo #13 · Q20

    Expected P12.6 Finished P18

    −5.4places
  2. Adrian Sutil Force India · Elo #20 · Q15

    Expected P11.9 Finished P17

    −5.1places
  3. Fernando Alonso Renault · Elo #3 · Q8

    Expected P5.7 Finished P10

    −4.3places
18/20 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. ButtonBrawn #12380 P2 P2.8P1–P7 P1 +1.8places In range
M. WebberRed Bull #42275 P4 P4.2P1–P9 P2 +2.2places In range
S. VettelRed Bull #92222 P1 P4.0P1–P9 P3 +1.0places In range
J. TrulliToyota #122122 P5 P6.2P2–P11 P4 +2.2places In range
N. RosbergWilliams #102200 P9 P7.5P3–P12 P5 +2.5places In range
F. MassaFerrari #72232 P7 P6.1P2–P11 P6 +0.1places In range
R. KubicaBMW Sauber #142057 P10 P8.7P4–P13 P7 +1.7places In range
T. GlockToyota #62240 P13 P8.3P4–P13 P8 +0.3places In range
K. RäikkönenFerrari #82223 P6 P5.8P1–P10 P9 −3.2places In range
F. AlonsoRenault #32313 P8 P5.7P1–P10 P10 −4.3places In range
N. HeidfeldBMW Sauber #112190 P11 P8.5P4–P13 P11 −2.5places In range
K. NakajimaWilliams #181955 P12 P10.3P6–P15 P12 −1.7places In range
L. HamiltonMcLaren #52255 P16 P9.4P5–P14 P13 −3.6places In range
H. KovalainenMcLaren #152045 P14 P10.5P6–P15 P14 −3.5places In range
S. BuemiToro Rosso #191953 P18 P12.9P8–P17 P15 −2.1places In range
N. Piquet Jr.Renault #162001 P17 P11.9P7–P16 P16 −4.1places In range
A. SutilForce India #201871 P15 P11.9P7–P16 P17 −5.1places Below range
S. BourdaisToro Rosso #132075 P20 P12.6P8–P17 P18 −5.4places Below range
R. BarrichelloBrawn #22314 P3 P3.4P1–P8 DNFGearbox — Not assessedDNF: Gearbox
G. FisichellaForce India #171988 P19 P12.9P8–P17 DNFBrakes — Not assessedDNF: Brakes
How useful is the model? See the historical check

Average absolute error on 405 classified finishes in 28 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
2.58places
Qualifying only
2.68places
Elo only
3.12places

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

Trulli+55.4 Elo

Largest grid-to-finish gain

Glock+5 places

The bigger picture

Championship after this round

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

  1. 1 Button 61pts 0
  2. 2 Barrichello 35pts 0
  3. 3 Vettel 29pts 0
  4. 4 Webber 27.5pts 0
  5. 5 Trulli 19.5pts 0

Movement since round 6. 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.

Brawn

ButtonP1+32.6 Elo
BarrichelloDNF−97.0 Elo

Non-finish recorded; no finishing gap comparison.

Q3 · Button 0.158s faster

Red Bull

WebberP2+41.9 Elo
VettelP3+43.9 Elo

1 place apart at the finish.

Q3 · Vettel 0.297s faster

Toyota

TrulliP4+55.4 Elo
GlockP8+1.6 Elo

4 places apart at the finish.

Q2 · Trulli 0.600s faster

Force India

SutilP17−3.7 Elo
FisichellaDNF−44.4 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Sutil 0.439s 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 →