Round 15 · 2008 · 28 Sep

Marina Bay Street Circuit

Marina Bay, Singapore

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 401 earlier finishes across 29 races, 1999–2008. 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. Fernando Alonso Renault · Elo #6 · Q15

    Expected P8.9 Finished P1

    +7.9places
  2. Nico Rosberg Williams · Elo #12 · Q9

    Expected P7.7 Finished P2

    +5.7places
  3. David Coulthard Red Bull · Elo #15 · Q14

    Expected P10.3 Finished P7

    +3.3places

Flop 3

Below the estimate
  1. Felipe Massa Ferrari · Elo #2 · Q1

    Expected P2.4 Finished P13

    −10.6places
  2. Robert Kubica BMW Sauber · Elo #3 · Q4

    Expected P3.8 Finished P11

    −7.2places
  3. Heikki Kovalainen McLaren · Elo #4 · Q5

    Expected P4.5 Finished P10

    −5.5places
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
F. AlonsoRenault #62251 P15 P8.9P5–P13 P1 +7.9places Above range
N. RosbergWilliams #122099 P9 Grid P8 P7.7P3–P12 P2 +5.7places Above range
L. HamiltonMcLaren #12399 P2 P2.6P1–P7 P3 −0.4places In range
T. GlockToyota #112157 P8 Grid P7 P7.1P3–P11 P4 +3.1places In range
S. VettelToro Rosso #102169 P7 Grid P6 P6.5P2–P11 P5 +1.5places In range
N. HeidfeldBMW Sauber #52339 P6 Grid P9 P5.1P1–P9 P6 −0.9places In range
D. CoulthardRed Bull #152029 P14 P10.3P6–P15 P7 +3.3places In range
K. NakajimaWilliams #142042 P10 P8.5P4–P13 P8 +0.5places In range
J. ButtonHonda #171991 P12 P9.9P6–P14 P9 +0.9places In range
H. KovalainenMcLaren #42354 P5 P4.5P1–P9 P10 −5.5places Below range
R. KubicaBMW Sauber #32369 P4 P3.8P1–P8 P11 −7.2places Below range
S. BourdaisToro Rosso #161996 P17 P11.7P7–P16 P12 −0.3places In range
F. MassaFerrari #22372 P1 P2.4P1–P7 P13 −10.6places Below range
G. FisichellaForce India #191893 P20 P13.5P9–P18 P14 −0.5places In range
K. RäikkönenFerrari #72228 P3 P4.3P1–P9 DNFAccident — Not assessedDNF: Accident
J. TrulliToyota #82180 P11 P7.7P3–P12 DNFHydraulics — Not assessedDNF: Hydraulics
A. SutilForce India #201823 P19 P13.3P9–P18 DNFAccident — Not assessedDNF: Accident
M. WebberRed Bull #92172 P13 P8.7P4–P13 DNFTransmission — Not assessedDNF: Transmission
R. BarrichelloHonda #181971 P18 P12.5P8–P17 DNFMechanical — Not assessedDNF: Mechanical
N. Piquet Jr.Renault #132069 P16 P10.7P6–P15 DNFAccident — Not assessedDNF: Accident
How useful is the model? See the historical check

Average absolute error on 401 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
2.53places
Qualifying only
2.62places
Elo only
3.02places

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

Rosberg+70.5 Elo

Largest Elo loss

Webber−59.7 Elo

Largest grid-to-finish gain

Alonso+14 places

The bigger picture

Championship after this round

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

  1. 1 Hamilton 84pts 0
  2. 2 Massa 77pts 0
  3. 3 Kubica 64pts 0
  4. 4 Räikkönen 57pts 0
  5. 5 Heidfeld 56pts 0

Movement since round 14. 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.

Renault

AlonsoP1+51.7 Elo
Piquet Jr.DNF−56.5 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Alonso 1.066s faster

Toyota

GlockP4+45.8 Elo
TrulliDNF−46.4 Elo

Non-finish recorded; no finishing gap comparison.

Q2 · Glock 0.597s faster

Red Bull

CoulthardP7+45.7 Elo
WebberDNF−59.7 Elo

Non-finish recorded; no finishing gap comparison.

Q2 · Webber 0.086s faster

Honda

ButtonP9+37.0 Elo
BarrichelloDNF−33.3 Elo

Non-finish recorded; no finishing gap comparison.

Q1 · Button 0.923s faster

Ferrari

MassaP13−54.9 Elo
RäikkönenDNF−47.3 Elo

Non-finish recorded; no finishing gap comparison.

Q3 · Massa 0.816s 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 →