Round 14 · 1974

Mosport International Raceway

Ontario, Canada · September 22, 1974 · Circuit History · Wikipedia

The race, in perspective

Race debrief

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

R141974
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30 stored results 30/30 Elo snapshots 26/30 numbered grid slots 0/30 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.

0/30 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.

0/30 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 → P30vs expectedReading
E. FittipaldiMcLaren #42278 No error range P1 Not assessedQualifying unavailable
C. RegazzoniFerrari #12359 No error range P2 Not assessedQualifying unavailable
R. PetersonTeam Lotus #32313 No error range P3 Not assessedQualifying unavailable
J. HuntHesketh #202071 No error range P4 Not assessedQualifying unavailable
P. DepaillerTyrrell #122168 No error range P5 Not assessedQualifying unavailable
D. HulmeMcLaren #52259 No error range P6 Not assessedQualifying unavailable
M. AndrettiParnelli #102205 No error range P7 Not assessedQualifying unavailable
C. PaceBrabham #132157 No error range P8 Not assessedQualifying unavailable
C. ReutemannBrabham #82223 No error range P9 Not assessedQualifying unavailable
H. KoiniggSurtees #271921 No error range P10 Not assessedQualifying unavailable
R. StommelenLola #222045 No error range P11 Not assessedQualifying unavailable
M. DonohuePenske #162139 No error range P12 Not assessedQualifying unavailable
J. IckxTeam Lotus #92218 No error range P13 Not assessedQualifying unavailable
G. HillLola #72224 No error range P14 Not assessedQualifying unavailable
J. LaffiteIso Marlboro #232019 No error range DNFPuncture Not assessedQualifying unavailable
J. MassMcLaren #242018 No error range P16 Not assessedQualifying unavailable
C. AmonBRM #301812 No error range NCNot classified Not assessedQualifying unavailable
N. LaudaFerrari #152145 No error range DNFAccident Not assessedQualifying unavailable
T. PryceShadow #172134 No error range DNFEngine Not assessedQualifying unavailable
J. WatsonBrabham #62225 No error range DNFSuspension Not assessedQualifying unavailable
J. BeltoiseBRM #251998 No error range NCNot classified Not assessedQualifying unavailable
J. ScheckterTyrrell #22334 No error range DNFBrakes Not assessedQualifying unavailable
J. JarierShadow #112171 No error range DNFHalfshaft Not assessedQualifying unavailable
A. MerzarioIso Marlboro #182127 No error range DNFHandling Not assessedQualifying unavailable
E. WietzesBrabham #261987 No error range DNFEngine Not assessedQualifying unavailable
H. StuckMarch #212062 No error range DNFFuel system Not assessedQualifying unavailable
D. BellSurtees #291830 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
M. WildsEnsign #281836 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
V. BrambillaMarch #142146 Grid unnumbered No error range DNQDid not qualify Not assessedQualifying unavailable
I. AshleyBrabham #192079 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 gain

Hunt+95.1 Elo

Largest grid-to-finish gain

Koinigg+12 places

The bigger picture

Championship after this round

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

  1. 1 Fittipaldi 52pts +2
  2. 2 Regazzoni 52pts −1
  3. 3 Scheckter 45pts −1
  4. 4 Lauda 38pts 0
  5. 5 Peterson 35pts 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.

Surtees

KoiniggP10+88.4 Elo
BellDNQ−15.5 Elo

Non-finish recorded; no finishing gap comparison.

BRM

AmonNC+58.7 Elo
BeltoiseNC−7.6 Elo

Non-finish recorded; no finishing gap comparison.

Shadow

PryceDNF−28.6 Elo
JarierDNF−67.2 Elo

Non-finish recorded; no finishing gap comparison.

March

StuckDNF−59.5 Elo
BrambillaDNQ−103.2 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 →
30
Result Entries
Avg Elo
Highest Elo (Regazzoni)
15
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇧🇷 E.Fittipaldi 1 +9 52 P1 +62.7 2,341
P2 🇨🇭 C.Regazzoni 6 +4 +6 52 P2 +37.8 2,397
P3 🇸🇪 R.Peterson 10 +7 +4 35 P5 +40.4 2,353
P4 🇬🇧 J.Hunt 8 +4 +3 11 P11 +95.1 2,166
P5 🇫🇷 P.Depailler 7 +2 +2 13 P8 +62.1 2,230
P6 🇳🇿 D.Hulme 14 +8 +1 20 P7 +31.7 2,290
P7 🇺🇸 M.Andretti 16 +9 0 0 P24 +38.1 2,243
P8 🇧🇷 C.Pace 9 +1 0 5 P15 +43.6 2,200
P9 🇦🇷 C.Reutemann 4 -5 0 23 P6 +19.3 2,242
P10 🇦🇹 H.Koinigg 22 +12 0 0 P31 +88.4 2,009
P11 🇩🇪 R.Stommelen 11 0 0 P32 +51.8 2,097
P12 🇺🇸 M.Donohue 24 +12 0 0 P34 +19.9 2,159
P13 🇧🇪 J.Ickx 21 +8 0 12 P9 -8.0 2,210
P14 🇬🇧 G.Hill 20 +6 0 1 P18 -16.8 2,207
DNF 🇫🇷 J.Laffite 18 0 0 P42 +29.9 2,049
P16 🇩🇪 J.Mass 12 -4 0 0 P37 +23.0 2,041
NC 🇳🇿 C.Amon 25 0 0 P47 +58.7 1,871
DNF 🇦🇹 N.Lauda 2 0 38 P4 -24.6 2,121
DNF 🇬🇧 T.Pryce 13 0 1 P19 -28.6 2,105
DNF 🇬🇧 J.Watson 15 0 4 P16 -59.9 2,165
NC 🇫🇷 J.Beltoise 17 0 10 P12 -7.6 1,990
DNF 🇿🇦 J.Scheckter 3 0 45 P3 -99.7 2,235
DNF 🇫🇷 J.Jarier 5 0 6 P13 -67.2 2,104
DNF 🇮🇹 A.Merzario 19 0 4 P17 -62.4 2,064
DNF 🇨🇦 E.Wietzes 26 0 0 P54 -33.5 1,953
DNF 🇩🇪 H.Stuck 23 0 5 P14 -59.5 2,002
DNQ 🇬🇧 D.Bell 0 0 0 P33 -15.5 1,814
DNQ 🇬🇧 M.Wilds 0 0 0 P59 -23.7 1,813
DNQ 🇮🇹 V.Brambilla 0 0 1 P20 -103.2 2,043
DNQ 🇬🇧 I.Ashley 0 0 0 P38 -92.4 1,986

Qualifying results are not available for this race.

Elo Changes