Round 10 · 1984

Brands Hatch

Kent, UK · July 22, 1984 · Circuit History · Wikipedia

The race, in perspective

Race debrief

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

R101984
Share this debrief
Preview share card ↗
28 stored results 28/28 Elo snapshots 27/28 numbered grid slots 0/28 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.

0/28 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.

0/28 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.
DriverPre-race EloQualifyingExpectedResultP1 ← position → P28vs expectedReading
N. LaudaMcLaren #52237 No error range P1 Not assessedQualifying unavailable
D. WarwickRenault #102130 No error range P2 Not assessedQualifying unavailable
A. SennaToleman #132108 No error range P3 Not assessedQualifying unavailable
E. de AngelisTeam Lotus #12391 No error range P4 Not assessedQualifying unavailable
M. AlboretoFerrari #112128 No error range P5 Not assessedQualifying unavailable
R. ArnouxFerrari #32296 No error range P6 Not assessedQualifying unavailable
N. PiquetBrabham #62223 No error range P7 Not assessedQualifying unavailable
P. TambayRenault #92131 No error range DNFTurbo Not assessedQualifying unavailable
P. GhinzaniOsella #202032 No error range P9 Not assessedQualifying unavailable
A. de CesarisLigier #152076 No error range P10 Not assessedQualifying unavailable
M. SurerArrows #182045 No error range P11 Not assessedQualifying unavailable
R. PatreseAlfa Romeo #261987 No error range P12 Not assessedQualifying unavailable
S. BellofTyrrell #192037 No error range DSQDisqualified Not assessedQualifying unavailable
H. RothengatterSpirit #271937 No error range NCNot classified Not assessedQualifying unavailable
F. HesnaultLigier #281882 No error range DNFElectrical Not assessedQualifying unavailable
A. ProstMcLaren #22361 No error range DNFGearbox Not assessedQualifying unavailable
N. MansellTeam Lotus #72204 No error range DNFGearbox Not assessedQualifying unavailable
T. BoutsenArrows #142101 No error range DNFElectrical Not assessedQualifying unavailable
J. LaffiteWilliams #82181 No error range DNFWater pump Not assessedQualifying unavailable
J. PalmerRAM #232011 No error range DNFAccident Not assessedQualifying unavailable
T. FabiBrabham #122123 No error range DNFElectrical Not assessedQualifying unavailable
M. WinkelhockATS #162065 No error range DNFSpun off Not assessedQualifying unavailable
K. RosbergWilliams #42270 No error range DNFEngine Not assessedQualifying unavailable
S. JohanssonTyrrell #172063 No error range DSQDisqualified Not assessedQualifying unavailable
E. CheeverAlfa Romeo #242005 No error range DNFAccident Not assessedQualifying unavailable
P. AlliotRAM #251995 No error range DNFAccident Not assessedQualifying unavailable
J. GartnerOsella #212017 No error range DNFAccident Not assessedQualifying unavailable
J. CecottoToleman #222014 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

Warwick+80.8 Elo

Largest Elo loss

Rosberg−97.6 Elo

Largest grid-to-finish gain

Ghinzani+12 places

The bigger picture

Championship after this round

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

  1. 1 Prost 35.5pts 0
  2. 2 Lauda 33pts +1
  3. 3 de Angelis 29pts −1
  4. 4 Arnoux 24pts 0
  5. 5 Rosberg 20.5pts 0

Movement since round 9. 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.

McLaren

LaudaP1+62.0 Elo
ProstDNF−66.5 Elo

Non-finish recorded; no finishing gap comparison.

Toleman

SennaP3+79.2 Elo
CecottoDNQ−70.6 Elo

Non-finish recorded; no finishing gap comparison.

Brabham

PiquetP7+23.6 Elo
FabiDNF−49.1 Elo

Non-finish recorded; no finishing gap comparison.

Arrows

SurerP11+39.7 Elo
BoutsenDNF−22.9 Elo

Non-finish recorded; no finishing gap comparison.

RAM

PalmerDNF−14.6 Elo
AlliotDNF−52.2 Elo

Non-finish recorded; no finishing gap comparison.

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 →
28
Result Entries
Avg Elo
Highest Elo (de Angelis)
17
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇦🇹 N.Lauda 3 +2 +9 33 P2 +62.0 2,299
P2 🇬🇧 D.Warwick 6 +4 +6 19 P6 +80.8 2,210
P3 🇧🇷 A.Senna 7 +4 +4 9 P9 +79.2 2,187
P4 🇮🇹 E.de Angelis 4 +3 29 P3 +11.9 2,403
P5 🇮🇹 M.Alboreto 9 +4 +2 11.5 P8 +60.3 2,189
P6 🇫🇷 R.Arnoux 13 +7 +1 24 P4 +14.8 2,311
P7 🇧🇷 N.Piquet 1 -6 0 18 P7 +23.6 2,247
DNF 🇫🇷 P.Tambay 10 0 8 P10 +38.8 2,170
P9 🇮🇹 P.Ghinzani 21 +12 0 2 P18 +56.7 2,089
P10 🇮🇹 A.de Cesaris 19 +9 0 3 P16 +38.9 2,115
P11 🇨🇭 M.Surer 15 +4 0 0 P19 +39.7 2,084
P12 🇮🇹 R.Patrese 17 +5 0 3 P15 +46.5 2,034
DSQ 🇩🇪 S.Bellof 26 0 0 P29 +27.6 2,065
NC 🇳🇱 H.Rothengatter 22 0 0 P28 +43.9 1,981
DNF 🇫🇷 F.Hesnault 20 0 0 P26 +48.0 1,930
DNF 🇫🇷 A.Prost 2 0 35.5 P1 -66.5 2,295
DNF 🇬🇧 N.Mansell 8 0 6 P11 -41.2 2,163
DNF 🇧🇪 T.Boutsen 12 0 3 P17 -22.9 2,078
DNF 🇫🇷 J.Laffite 16 0 5 P12 -49.6 2,131
DNF 🇬🇧 J.Palmer 23 0 0 P23 -14.6 1,997
DNF 🇮🇹 T.Fabi 14 0 4 P13 -49.1 2,074
DNF 🇩🇪 M.Winkelhock 11 0 0 P22 -41.5 2,023
DNF 🇫🇮 K.Rosberg 5 0 20.5 P5 -97.6 2,173
DSQ 🇸🇪 S.Johansson 25 0 0 -54.9 2,008
DNF 🇺🇸 E.Cheever 18 0 3 P14 -47.8 1,958
DNF 🇫🇷 P.Alliot 24 0 0 P25 -52.2 1,942
DNF 🇦🇹 J.Gartner 27 0 0 P30 -64.4 1,952
DNQ 🇻🇪 J.Cecotto 0 0 0 P24 -70.6 1,943

Qualifying results are not available for this race.

Elo Changes