Round 7 · 1955

Autodromo Nazionale di Monza

Monza, Italy · September 11, 1955 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R071955
Share this debrief
Preview share card ↗
23 stored results 23/23 Elo snapshots 22/23 numbered grid slots 0/23 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.

0/23 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.

0/23 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 → P23vs expectedReading
J. FangioMercedes #12505 No error range P1 Not assessedQualifying unavailable
P. TaruffiMercedes #62223 No error range P2 Not assessedQualifying unavailable
E. CastellottiFerrari #171975 No error range P3 Not assessedQualifying unavailable
J. BehraMaserati #211901 No error range P4 Not assessedQualifying unavailable
C. MenditeguyMaserati #231770 No error range P5 Not assessedQualifying unavailable
U. MaglioliFerrari #42316 No error range P6 Not assessedQualifying unavailable
R. MieresMaserati #72196 No error range P7 Not assessedQualifying unavailable
M. TrintignantFerrari #112146 No error range P8 Not assessedQualifying unavailable
J. FitchMaserati #221861 No error range P9 Not assessedQualifying unavailable
M. HawthornFerrari #82191 No error range DNFGearbox Not assessedQualifying unavailable
K. KlingMercedes #102156 No error range DNFGearbox Not assessedQualifying unavailable
L. MussoMaserati #52260 No error range DNFGearbox Not assessedQualifying unavailable
H. GouldMaserati #191942 No error range DNFSuspension Not assessedQualifying unavailable
S. MossMercedes #32397 No error range DNFEngine Not assessedQualifying unavailable
J. PolletGordini #132061 No error range DNFEngine Not assessedQualifying unavailable
H. da Silva RamosGordini #142018 No error range DNFFuel system Not assessedQualifying unavailable
P. CollinsMaserati #181967 No error range DNFSuspension Not assessedQualifying unavailable
H. SchellVanwall #201929 No error range DNFSuspension Not assessedQualifying unavailable
J. LucasGordini #15.52000 No error range DNFEngine Not assessedQualifying unavailable
K. WhartonVanwall #92166 No error range DNFInjection Not assessedQualifying unavailable
N. FarinaFerrari #22433 No error range DNSWithdrew Not assessedQualifying unavailable
L. VilloresiFerrari #122078 No error range DNSWithdrew Not assessedQualifying unavailable
L. PiottiArzani-Volpini #15.52000 Grid unnumbered No error range DNSWithdrew 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

Farina−287.9 Elo

Largest grid-to-finish gain

Menditeguy+11 places

The bigger picture

Championship after this round

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

  1. 1 Fangio 40pts 0
  2. 2 Moss 23pts 0
  3. 3 Castellotti 12pts +3
  4. 4 Trintignant 11.33pts −1
  5. 5 Farina 10.33pts −1

Movement since round 6. 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.

Vanwall

SchellDNF−26.9 Elo
WhartonDNF−169.2 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 →
23
Result Entries
Avg Elo
Highest Elo (Fangio)
14
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇦🇷 J.Fangio 1 +8 40 P1 +44.5 2,550
P2 🇮🇹 P.Taruffi 9 +7 +6 9 P6 +121.4 2,344
P3 🇮🇹 E.Castellotti 4 +1 +4 12 P3 +216.8 2,191
P4 🇫🇷 J.Behra 6 +2 +3 6 P9 +230.0 2,131
P5 🇦🇷 C.Menditeguy 16 +11 +2 2 P19 +257.3 2,028
P6 🇮🇹 U.Maglioli 12 +6 0 1.33 P21 +13.8 2,330
P7 🇦🇷 R.Mieres 7 0 7 P8 +45.5 2,241
P8 🇫🇷 M.Trintignant 15 +7 0 11.33 P4 +50.5 2,196
P9 🇺🇸 J.Fitch 20 +11 0 0 P40 +157.6 2,018
DNF 🇬🇧 M.Hawthorn 14 0 0 P27 -5.0 2,186
DNF 🇩🇪 K.Kling 3 0 5 P11 -6.6 2,149
DNF 🇮🇹 L.Musso 10 0 6 P10 -69.7 2,191
DNF 🇬🇧 H.Gould 21 0 0 P51 +55.5 1,997
DNF 🇬🇧 S.Moss 2 +1 23 P2 -154.3 2,243
DNF 🇫🇷 J.Pollet 19 0 0 P30 -32.8 2,028
DNF 🇧🇷 H.da Silva Ramos 18 0 0 P34 -30.7 1,987
DNF 🇬🇧 P.Collins 11 0 0 P55 -25.5 1,941
DNF 🇺🇸 H.Schell 13 0 0 P26 -26.9 1,902
DNF 🇫🇷 J.Lucas 22 0 0 P65 -75.2 1,925
DNF 🇬🇧 K.Wharton 17 0 0 P38 -169.2 1,997
DNS 🇮🇹 N.Farina 5 0 10.33 P5 -287.9 2,146
DNS 🇮🇹 L.Villoresi 8 0 2 P20 -163.6 1,914
DNS 🇮🇹 L.Piotti 0 0 0 P74 -145.4 1,855

Qualifying results are not available for this race.

Elo Changes