Round 11 · 1972

Mosport International Raceway

Ontario, Canada · September 24, 1972 · Circuit History · Wikipedia

The race, in perspective

Race debrief

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

R111972
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24 stored results 24/24 Elo snapshots 24/24 numbered grid slots 0/24 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.

0/24 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.

0/24 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 → P24vs expectedReading
J. StewartTyrrell #92136 No error range P1 Not assessedQualifying unavailable
P. RevsonMcLaren #22339 No error range P2 Not assessedQualifying unavailable
D. HulmeMcLaren #32301 No error range P3 Not assessedQualifying unavailable
C. ReutemannBrabham #221916 No error range P4 Not assessedQualifying unavailable
C. RegazzoniFerrari #192002 No error range P5 Not assessedQualifying unavailable
C. AmonMatra #52197 No error range P6 Not assessedQualifying unavailable
T. SchenkenSurtees #182005 No error range P7 Not assessedQualifying unavailable
G. HillBrabham #82165 No error range P8 Not assessedQualifying unavailable
C. PaceMarch #201960 No error range DNFOut of fuel Not assessedQualifying unavailable
H. GanleyBRM #62195 No error range P10 Not assessedQualifying unavailable
E. FittipaldiTeam Lotus #12418 No error range P11 Not assessedQualifying unavailable
J. IckxFerrari #102089 No error range P12 Not assessedQualifying unavailable
H. PescaroloMarch #241874 No error range P13 Not assessedQualifying unavailable
R. WisellTeam Lotus #231915 No error range DNFEngine Not assessedQualifying unavailable
N. LaudaMarch #142048 No error range DSQDisqualified Not assessedQualifying unavailable
R. PetersonMarch #42251 No error range DNFCollision Not assessedQualifying unavailable
M. BeuttlerMarch #122061 No error range NCNot classified Not assessedQualifying unavailable
F. CevertTyrrell #112080 No error range DNFGearbox Not assessedQualifying unavailable
P. GethinBRM #162029 No error range DNFSuspension Not assessedQualifying unavailable
S. BarberMarch #211944 No error range NCNot classified Not assessedQualifying unavailable
J. BeltoiseBRM #72188 No error range DNFOil leak Not assessedQualifying unavailable
B. BrackBRM #152033 No error range DNFSpun off Not assessedQualifying unavailable
W. FittipaldiBrabham #132052 No error range DNFGearbox Not assessedQualifying unavailable
A. de AdamichSurtees #172020 No error range DNFGearbox 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

Hill+9 places

The bigger picture

Championship after this round

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

  1. 1 Fittipaldi 61pts 0
  2. 2 Stewart 36pts +1
  3. 3 Hulme 35pts −1
  4. 4 Ickx 25pts 0
  5. 5 Revson 23pts 0

Movement since round 10. 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.

Tyrrell

StewartP1+101.0 Elo
CevertDNF−52.4 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 →
24
Result Entries
Avg Elo
Highest Elo (Revson)
12
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇬🇧 J.Stewart 5 +4 +9 36 P2 +101.0 2,237
P2 🇺🇸 P.Revson 1 -1 +6 23 P5 +38.1 2,377
P3 🇳🇿 D.Hulme 2 -1 +4 35 P3 +36.4 2,338
P4 🇦🇷 C.Reutemann 9 +5 +3 3 P15 +135.1 2,051
P5 🇨🇭 C.Regazzoni 7 +2 +2 15 P6 +101.1 2,103
P6 🇳🇿 C.Amon 10 +4 +1 12 P8 +33.3 2,230
P7 🇦🇺 T.Schenken 13 +6 0 2 P19 +80.2 2,085
P8 🇬🇧 G.Hill 17 +9 0 4 P14 +22.4 2,187
DNF 🇧🇷 C.Pace 18 0 3 P18 +73.3 2,033
P10 🇳🇿 H.Ganley 14 +4 0 4 P12 -6.1 2,189
P11 🇧🇷 E.Fittipaldi 4 -7 0 61 P1 -66.9 2,351
P12 🇧🇪 J.Ickx 8 -4 0 25 P4 +5.0 2,094
P13 🇫🇷 H.Pescarolo 21 +8 0 0 P26 +55.4 1,929
DNF 🇸🇪 R.Wisell 16 0 0 P29 +35.3 1,950
DSQ 🇦🇹 N.Lauda 19 0 0 P23 -12.6 2,035
DNF 🇸🇪 R.Peterson 3 0 9 P11 -81.2 2,169
NC 🇬🇧 M.Beuttler 24 0 0 P25 -36.7 2,025
DNF 🇫🇷 F.Cevert 6 0 9 P10 -52.4 2,028
DNF 🇬🇧 P.Gethin 12 0 1 P21 -47.1 1,982
NC 🇺🇸 S.Barber 22 0 0 P33 -32.5 1,911
DNF 🇫🇷 J.Beltoise 20 0 9 P9 -114.3 2,073
DNF 🇨🇦 B.Brack 23 0 0 P39 -78.2 1,955
DNF 🇧🇷 W.Fittipaldi 11 0 0 P22 -94.1 1,958
DNF 🇮🇹 A.de Adamich 15 0 3 P16 -94.2 1,925

Qualifying results are not available for this race.

Elo Changes