Round 13 · 1975

Autodromo Nazionale di Monza

Monza, Italy · September 07, 1975 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R131975
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28 stored results 28/28 Elo snapshots 26/28 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
C. RegazzoniFerrari #62243 No error range P1 Not assessedQualifying unavailable
E. FittipaldiMcLaren #72242 No error range P2 Not assessedQualifying unavailable
N. LaudaFerrari #12435 No error range P3 Not assessedQualifying unavailable
C. ReutemannBrabham #52258 No error range P4 Not assessedQualifying unavailable
J. HuntHesketh #22327 No error range P5 Not assessedQualifying unavailable
T. PryceShadow-Ford #82226 No error range P6 Not assessedQualifying unavailable
P. DepaillerTyrrell #32270 No error range P7 Not assessedQualifying unavailable
J. ScheckterTyrrell #42268 No error range P8 Not assessedQualifying unavailable
H. ErtlHesketh #172062 No error range P9 Not assessedQualifying unavailable
B. LungerHesketh #182051 No error range P10 Not assessedQualifying unavailable
A. MerzarioFittipaldi #271900 No error range P11 Not assessedQualifying unavailable
C. AmonEnsign #202042 No error range P12 Not assessedQualifying unavailable
J. CrawfordTeam Lotus #231979 No error range P13 Not assessedQualifying unavailable
R. ZorziWilliams #222000 No error range P14 Not assessedQualifying unavailable
J. JarierShadow-Matra #212024 No error range DNFFuel pump Not assessedQualifying unavailable
L. LombardiMarch #192047 No error range DNFAccident Not assessedQualifying unavailable
H. StuckMarch #261942 No error range DNFAccident Not assessedQualifying unavailable
J. LaffiteWilliams #162086 No error range DNFGearbox Not assessedQualifying unavailable
C. PaceBrabham #132140 No error range DNFThrottle Not assessedQualifying unavailable
R. StommelenEmbassy Hill #102171 No error range DNFAccident Not assessedQualifying unavailable
J. MassMcLaren #92193 No error range DNFAccident Not assessedQualifying unavailable
R. PetersonTeam Lotus #142138 No error range DNFEngine Not assessedQualifying unavailable
T. BriseEmbassy Hill #112161 No error range DNFAccident Not assessedQualifying unavailable
M. AndrettiParnelli #152114 No error range DNFAccident Not assessedQualifying unavailable
V. BrambillaMarch #122154 No error range DNFClutch Not assessedQualifying unavailable
B. EvansBRM #241973 No error range DNFElectrical Not assessedQualifying unavailable
R. WunderinkEnsign #251951 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
T. TrimmerMaki #281878 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 grid-to-finish gain

Merzario+15 places

The bigger picture

Championship after this round

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

  1. 1 Lauda 55.5pts 0
  2. 2 Fittipaldi 39pts +1
  3. 3 Reutemann 37pts −1
  4. 4 Hunt 30pts 0
  5. 5 Regazzoni 25pts +3

Movement since round 12. 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.

Ensign

AmonP12+40.3 Elo
WunderinkDNQ−55.0 Elo

Non-finish recorded; no finishing gap comparison.

Williams

ZorziP14+35.6 Elo
LaffiteDNF−19.3 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 (Lauda)
14
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇨🇭 C.Regazzoni 2 +1 +9 25 P5 +72.5 2,315
P2 🇧🇷 E.Fittipaldi 3 +1 +6 39 P2 +64.7 2,307
P3 🇦🇹 N.Lauda 1 -2 +4 55.5 P1 +16.3 2,451
P4 🇦🇷 C.Reutemann 7 +3 +3 37 P3 +44.9 2,303
P5 🇬🇧 J.Hunt 8 +3 +2 30 P4 +20.9 2,348
P6 🇬🇧 T.Pryce 14 +8 +1 8 P10 +37.3 2,263
P7 🇫🇷 P.Depailler 12 +5 0 12 P9 +18.1 2,288
P8 🇿🇦 J.Scheckter 4 -4 0 19 P7 +10.8 2,279
P9 🇦🇹 H.Ertl 17 +8 0 0 P23 +58.6 2,121
P10 🇺🇸 B.Lunger 21 +11 0 0 P27 +53.7 2,105
P11 🇮🇹 A.Merzario 26 +15 0 0 P30 +83.4 1,983
P12 🇳🇿 C.Amon 19 +7 0 0 P32 +40.3 2,082
P13 🇬🇧 J.Crawford 25 +12 0 0 P35 +48.9 2,028
P14 🇮🇹 R.Zorzi 22 +8 0 0 P39 +35.6 2,036
DNF 🇫🇷 J.Jarier 13 0 1.5 P18 +21.5 2,045
DNF 🇮🇹 L.Lombardi 24 0 0.5 P21 +7.4 2,054
DNF 🇩🇪 H.Stuck 16 0 0 P45 +26.3 1,968
DNF 🇫🇷 J.Laffite 18 0 6 P12 -19.3 2,067
DNF 🇧🇷 C.Pace 10 0 24 P6 -42.4 2,098
DNF 🇩🇪 R.Stommelen 23 0 0 P22 -58.8 2,112
DNF 🇩🇪 J.Mass 5 0 16 P8 -72.7 2,120
DNF 🇸🇪 R.Peterson 11 0 4 P14 -65.4 2,072
DNF 🇬🇧 T.Brise 6 0 1 P19 -80.0 2,081
DNF 🇺🇸 M.Andretti 15 0 5 P13 -74.7 2,039
DNF 🇮🇹 V.Brambilla 9 0 6.5 P11 -93.8 2,060
DNF 🇬🇧 B.Evans 20 0 0 P25 -52.4 1,920
DNQ 🇳🇱 R.Wunderink 0 0 0 P44 -55.0 1,896
DNQ 🇬🇧 T.Trimmer 0 0 0 P51 -46.6 1,832

Qualifying results are not available for this race.

Elo Changes