Round 4 · 1952

Rouen-Les-Essarts

Rouen, France · July 06, 1952 · Circuit History · Wikipedia

The race, in perspective

Race debrief

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

R041952
Share this debrief
Preview share card ↗
21 stored results 21/21 Elo snapshots 21/21 numbered grid slots 0/21 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.

0/21 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.

0/21 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 → P21vs expectedReading
A. AscariFerrari #12378 No error range P1 Not assessedQualifying unavailable
N. FarinaFerrari #32164 No error range P2 Not assessedQualifying unavailable
P. TaruffiFerrari #72044 No error range P3 Not assessedQualifying unavailable
R. ManzonGordini #42136 No error range P4 Not assessedQualifying unavailable
M. TrintignantSimca #171928 No error range P5 Not assessedQualifying unavailable
P. CollinsHWM #211821 No error range P6 Not assessedQualifying unavailable
J. BehraGordini #141982 No error range P7 Not assessedQualifying unavailable
P. ÉtancelinMaserati #131984 No error range P8 Not assessedQualifying unavailable
L. MacklinHWM #92005 No error range P9 Not assessedQualifying unavailable
Y. CabantousHWM #151970 No error range P10 Not assessedQualifying unavailable
P. HirtFerrari #121984 No error range P11 Not assessedQualifying unavailable
R. FischerFerrari #22203 No error range P11 Not assessedQualifying unavailable
F. ComottiFerrari #181920 No error range P12 Not assessedQualifying unavailable
P. BiraGordini #102004 No error range DNFAxle Not assessedQualifying unavailable
M. HawthornCooper #52131 No error range DNFIgnition Not assessedQualifying unavailable
T. de GraffenriedMaserati #62072 No error range DNFBrakes Not assessedQualifying unavailable
P. WhiteheadAlta #191883 No error range DNFClutch Not assessedQualifying unavailable
L. RosierFerrari #201855 No error range DNFEngine Not assessedQualifying unavailable
J. ClaesSimca #82036 No error range DNFEngine Not assessedQualifying unavailable
H. SchellMaserati #161967 No error range DNFGearbox Not assessedQualifying unavailable
P. CariniFerrari #112000 No error range DNFEngine 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

Collins+161.3 Elo

Largest Elo loss

Carini−152.9 Elo

Largest grid-to-finish gain

Étancelin+10 places

The bigger picture

Championship after this round

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

  1. 1 Ascari 18pts +1
  2. 2 Taruffi 13pts −1
  3. 3 Farina 12pts +1
  4. 4 Ruttman 8pts −1
  5. 5 Manzon 7pts +2

Movement since round 3. 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.

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 →
21
Result Entries
Avg Elo
Highest Elo (Ascari)
8
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇮🇹 A.Ascari 1 +9 18 P1 +37.4 2,416
P2 🇮🇹 N.Farina 2 +6 12 P3 +84.2 2,248
P3 🇮🇹 P.Taruffi 3 +4 13 P2 +117.7 2,161
P4 🇫🇷 R.Manzon 5 +1 +3 7 P5 +62.9 2,199
P5 🇫🇷 M.Trintignant 6 +1 +2 2 P16 +135.9 2,064
P6 🇬🇧 P.Collins 8 +2 0 0 P19 +161.3 1,982
P7 🇫🇷 J.Behra 4 -3 0 4 P8 +80.4 2,062
P8 🇫🇷 P.Étancelin 18 +10 0 0 P26 +63.6 2,047
P9 🇬🇧 L.Macklin 14 +5 0 0 P28 +38.2 2,043
P10 🇫🇷 Y.Cabantous 10 0 0 P31 +37.3 2,007
P11 🇨🇭 P.Hirt 17 +6 0 0 P21 +6.9 1,991
P11 🇨🇭 R.Fischer 17 +6 0 6 P6 -83.1 2,120
P12 🇮🇹 F.Comotti 16 +4 0 0 P34 +10.3 1,930
DNF 🇹🇭 P.Bira 7 0 0 P30 -42.2 1,962
DNF 🇬🇧 M.Hawthorn 15 0 3 P10 -112.1 2,018
DNF 🇨🇭 T.de Graffenried 12 0 0 P18 -103.8 1,968
DNF 🇬🇧 P.Whitehead 13 0 0 P52 -38.9 1,844
DNF 🇫🇷 L.Rosier 9 0 0 P53 -44.1 1,810
DNF 🇧🇪 J.Claes 20 0 0 P25 -136.7 1,900
DNF 🇺🇸 H.Schell 11 0 0 P49 -122.4 1,845
DNF 🇮🇹 P.Carini 19 0 0 P57 -152.9 1,847

Qualifying results are not available for this race.

Elo Changes