Round 14 · 1983

Brands Hatch

Kent, UK · September 25, 1983 · Circuit History · Wikipedia

The race, in perspective

Race debrief

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

R141983
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29 stored results 29/29 Elo snapshots 26/29 numbered grid slots 0/29 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.

0/29 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.

0/29 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 → P29vs expectedReading
N. PiquetBrabham #22340 No error range P1 Not assessedQualifying unavailable
A. ProstRenault #42319 No error range P2 Not assessedQualifying unavailable
N. MansellTeam Lotus #102189 No error range P3 Not assessedQualifying unavailable
A. de CesarisAlfa Romeo #232045 No error range P4 Not assessedQualifying unavailable
D. WarwickToleman #92193 No error range P5 Not assessedQualifying unavailable
B. GiacomelliToleman #142138 No error range P6 Not assessedQualifying unavailable
R. PatreseBrabham #172088 No error range P7 Not assessedQualifying unavailable
M. WinkelhockATS #212056 No error range P8 Not assessedQualifying unavailable
R. ArnouxFerrari #12468 No error range P9 Not assessedQualifying unavailable
E. CheeverRenault #72242 No error range P10 Not assessedQualifying unavailable
T. BoutsenArrows #112155 No error range P11 Not assessedQualifying unavailable
R. GuerreroTheodore #182079 No error range P12 Not assessedQualifying unavailable
J. PalmerWilliams #272000 No error range P13 Not assessedQualifying unavailable
S. JohanssonSpirit #252029 No error range P14 Not assessedQualifying unavailable
R. BoeselLigier #262008 No error range P15 Not assessedQualifying unavailable
P. TambayFerrari #32325 No error range DNFSpun off Not assessedQualifying unavailable
M. AlboretoTyrrell #132139 No error range DNFEngine Not assessedQualifying unavailable
P. GhinzaniOsella #281909 No error range DNFThrottle Not assessedQualifying unavailable
M. SurerArrows #82193 No error range DNFEngine Not assessedQualifying unavailable
K. RosbergWilliams #52299 No error range DNFEngine Not assessedQualifying unavailable
M. BaldiAlfa Romeo #152121 No error range DNFClutch Not assessedQualifying unavailable
J. WatsonMcLaren #62251 No error range DNFSpun off Not assessedQualifying unavailable
D. SullivanTyrrell #202062 No error range DNFOil leak Not assessedQualifying unavailable
N. LaudaMcLaren #162104 No error range DNFEngine Not assessedQualifying unavailable
E. de AngelisTeam Lotus #242043 No error range DNFOil pump Not assessedQualifying unavailable
J. JarierLigier #122140 No error range DNFClutch Not assessedQualifying unavailable
K. AchesonRAM #291779 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
C. FabiOsella #222050 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
J. LaffiteWilliams #192062 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 loss

Laffite−83.3 Elo

Largest grid-to-finish gain

Palmer+12 places

The bigger picture

Championship after this round

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

  1. 1 Prost 57pts 0
  2. 2 Piquet 55pts +1
  3. 3 Arnoux 49pts −1
  4. 4 Tambay 40pts 0
  5. 5 Rosberg 25pts 0

Movement since round 13. 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.

Ferrari

ArnouxP9−30.0 Elo
TambayDNF−55.3 Elo

Non-finish recorded; no finishing gap comparison.

Arrows

BoutsenP11+22.7 Elo
SurerDNF−45.4 Elo

Non-finish recorded; no finishing gap comparison.

Ligier

BoeselP15+32.0 Elo
JarierDNF−82.3 Elo

Non-finish recorded; no finishing gap comparison.

Osella

GhinzaniDNF+32.5 Elo
FabiDNQ−72.9 Elo

Non-finish recorded; no finishing gap comparison.

McLaren

WatsonDNF−81.8 Elo
LaudaDNF−58.0 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 →
29
Result Entries
Avg Elo
Highest Elo (Arnoux)
14
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇧🇷 N.Piquet 4 +3 +9 55 P2 +50.4 2,390
P2 🇫🇷 A.Prost 8 +6 +6 57 P1 +47.7 2,366
P3 🇬🇧 N.Mansell 3 +4 10 P11 +71.7 2,261
P4 🇮🇹 A.de Cesaris 14 +10 +3 9 P12 +102.5 2,148
P5 🇬🇧 D.Warwick 11 +6 +2 6 P13 +56.3 2,249
P6 🇮🇹 B.Giacomelli 12 +6 +1 1 P19 +63.4 2,202
P7 🇮🇹 R.Patrese 2 -5 0 4 P14 +69.6 2,157
P8 🇩🇪 M.Winkelhock 9 +1 0 0 P26 +70.8 2,126
P9 🇫🇷 R.Arnoux 5 -4 0 49 P3 -30.0 2,438
P10 🇺🇸 E.Cheever 7 -3 0 21 P7 +7.5 2,249
P11 🇧🇪 T.Boutsen 18 +7 0 0 P21 +22.7 2,178
P12 🇨🇴 R.Guerrero 21 +9 0 0 P29 +35.7 2,115
P13 🇬🇧 J.Palmer 25 +12 0 0 P30 +48.4 2,048
P14 🇸🇪 S.Johansson 19 +5 0 0 P25 +34.1 2,063
P15 🇧🇷 R.Boesel 23 +8 0 0 P24 +32.0 2,040
DNF 🇫🇷 P.Tambay 6 0 40 P4 -55.3 2,270
DNF 🇮🇹 M.Alboreto 26 0 10 P10 -16.6 2,122
DNF 🇮🇹 P.Ghinzani 24 0 0 P28 +32.5 1,941
DNF 🇨🇭 M.Surer 17 0 4 P15 -45.4 2,148
DNF 🇫🇮 K.Rosberg 16 0 25 P5 -78.6 2,220
DNF 🇮🇹 M.Baldi 15 0 3 P16 -40.8 2,080
DNF 🇬🇧 J.Watson 10 0 22 P6 -81.8 2,169
DNF 🇺🇸 D.Sullivan 20 0 2 P17 -39.7 2,022
DNF 🇦🇹 N.Lauda 13 0 12 P8 -58.0 2,046
DNF 🇮🇹 E.de Angelis 1 0 2 P18 -49.3 1,994
DNF 🇫🇷 J.Jarier 22 0 0 P22 -82.3 2,058
DNQ 🇬🇧 K.Acheson 0 0 0 P33 -11.1 1,768
DNQ 🇮🇹 C.Fabi 0 0 0 P27 -72.9 1,977
DNQ 🇫🇷 J.Laffite 0 0 11 P9 -83.3 1,979

Qualifying results are not available for this race.

Elo Changes