Round 9 · 1981

Silverstone Circuit

Silverstone, UK · July 18, 1981 · Circuit History · Wikipedia

Kings of this circuit

L.Hamilton 9

The race, in perspective

Race debrief

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

R091981

30 stored results 30/30 Elo snapshots 24/30 numbered grid slots 0/30 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.

This race has insufficient earlier history: 0/20 races and 0/200 classified finishes with Elo and qualifying. Estimates are withheld.

0/30 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.

0/30 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.
Driver	Pre-race Elo	Qualifying	Expected	Result	vs expected	Reading
J. WatsonMcLaren	#22392	—	—No error range	P1	—	Not assessedQualifying unavailable
C. ReutemannWilliams	#12516	—	—No error range	P2	—	Not assessedQualifying unavailable
J. LaffiteLigier	#62326	—	—No error range	P3	—	Not assessedQualifying unavailable
E. CheeverTyrrell	#162210	—	—No error range	P4	—	Not assessedQualifying unavailable
H. RebaqueBrabham	#172173	—	—No error range	P5	—	Not assessedQualifying unavailable
S. BorguddATS	#281886	—	—No error range	P6	—	Not assessedQualifying unavailable
D. DalyMarch	#251949	—	—No error range	P7	—	Not assessedQualifying unavailable
J. JarierOsella	#92294	—	—No error range	P8	—	Not assessedQualifying unavailable
R. ArnouxRenault	#102292	—	—No error range	DNFDistributor	—	Not assessedQualifying unavailable
R. PatreseArrows	#182150	—	—No error range	DNFEngine	—	Not assessedQualifying unavailable
M. SurerTheodore	#112286	—	—No error range	DNFOut of fuel	—	Not assessedQualifying unavailable
M. AndrettiAlfa Romeo	#122255	—	—No error range	DNFThrottle	—	Not assessedQualifying unavailable
K. RosbergFittipaldi	#222075	—	—No error range	DNFSuspension	—	Not assessedQualifying unavailable
E. de AngelisTeam Lotus	#82319	—	—No error range	DSQDisqualified	—	Not assessedQualifying unavailable
A. ProstRenault	#152212	—	—No error range	DNFDistributor	—	Not assessedQualifying unavailable
P. TambayLigier	#192136	—	—No error range	DNFClutch	—	Not assessedQualifying unavailable
D. PironiFerrari	#52330	—	—No error range	DNFTurbo	—	Not assessedQualifying unavailable
N. PiquetBrabham	#42337	—	—No error range	DNFTyre	—	Not assessedQualifying unavailable
B. GiacomelliAlfa Romeo	#142220	—	—No error range	DNFTransmission	—	Not assessedQualifying unavailable
G. VilleneuveFerrari	#72325	—	—No error range	DNFSpun off	—	Not assessedQualifying unavailable
A. JonesWilliams	#32384	—	—No error range	DNFCollision	—	Not assessedQualifying unavailable
A. de CesarisMcLaren	#202107	—	—No error range	DNFSpun off	—	Not assessedQualifying unavailable
M. AlboretoTyrrell	#212092	—	—No error range	DNFClutch	—	Not assessedQualifying unavailable
S. StohrArrows	#241978	—	—No error range	DNFSpun off	—	Not assessedQualifying unavailable
C. SerraFittipaldi	#232027	— Grid unnumbered	—No error range	DNQDid not qualify	—	Not assessedQualifying unavailable
B. HentonToleman	#291798	— Grid unnumbered	—No error range	DNQDid not qualify	—	Not assessedQualifying unavailable
N. MansellTeam Lotus	#132231	— Grid unnumbered	—No error range	DNQDid not qualify	—	Not assessedQualifying unavailable
E. SalazarEnsign	#261935	— Grid unnumbered	—No error range	DNQDid not qualify	—	Not assessedQualifying unavailable
D. WarwickToleman	#301789	— Grid unnumbered	—No error range	DNQDid not qualify	—	Not assessedQualifying unavailable
B. GabbianiOsella	#271888	— Grid unnumbered	—No error range	DNQDid not qualify	—	Not assessedQualifying unavailable

How useful is the model? See the historical check

There is not enough earlier history for a rolling hold-out check yet.

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

Borgudd+129.1 Elo

Largest Elo loss

Mansell−97.0 Elo

Largest grid-to-finish gain

Cheever+19 places

The bigger picture

Championship after this round

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

1 Reutemann 43pts 0
2 Piquet 26pts 0
3 Jones 24pts 0
4 Villeneuve 21pts 0
5 Laffite 21pts 0

Movement since round 8. 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.