Round 16 · 1977

Mosport International Raceway

Ontario, Canada · October 09, 1977 · Circuit History · Wikipedia

The race, in perspective

Race debrief

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

R161977
Share this debrief
Preview share card ↗
27 stored results 27/27 Elo snapshots 25/27 numbered grid slots 0/27 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.

0/27 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.

0/27 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 → P27vs expectedReading
J. ScheckterWolf #32301 No error range P1 Not assessedQualifying unavailable
P. DepaillerTyrrell #142153 No error range P2 Not assessedQualifying unavailable
J. MassMcLaren #102178 No error range P3 Not assessedQualifying unavailable
A. JonesShadow #112171 No error range P4 Not assessedQualifying unavailable
P. TambayEnsign #232036 No error range P5 Not assessedQualifying unavailable
V. BrambillaSurtees #152141 No error range DNFAccident Not assessedQualifying unavailable
D. OngaisPenske #261963 No error range P7 Not assessedQualifying unavailable
A. RibeiroMarch #252024 No error range P8 Not assessedQualifying unavailable
M. AndrettiTeam Lotus #22302 No error range DNFEngine Not assessedQualifying unavailable
R. PatreseShadow #132154 No error range DNFSpun off Not assessedQualifying unavailable
B. LungerMcLaren #122166 No error range DNFEngine Not assessedQualifying unavailable
G. VilleneuveFerrari #212067 No error range DNFTransmission Not assessedQualifying unavailable
J. HuntMcLaren #52265 No error range DNFAccident Not assessedQualifying unavailable
P. NèveMarch #192116 No error range DNFEngine Not assessedQualifying unavailable
R. PetersonTyrrell #92196 No error range DNFFuel leak Not assessedQualifying unavailable
R. KeeganHesketh #72213 No error range DNFAccident Not assessedQualifying unavailable
H. BinderSurtees #172130 No error range DNFAccident Not assessedQualifying unavailable
I. ScheckterMarch #222065 No error range DNFEngine Not assessedQualifying unavailable
E. FittipaldiFittipaldi #162133 No error range DNFEngine Not assessedQualifying unavailable
C. ReutemannFerrari #12355 No error range DNFFuel system Not assessedQualifying unavailable
H. StuckBrabham #62222 No error range DNFEngine Not assessedQualifying unavailable
G. NilssonTeam Lotus #202108 No error range DNFAccident Not assessedQualifying unavailable
J. LaffiteLigier #42296 No error range DNFTransmission Not assessedQualifying unavailable
J. WatsonBrabham #182121 No error range DNFSuspension Not assessedQualifying unavailable
C. RegazzoniEnsign #82206 No error range DNFAccident Not assessedQualifying unavailable
I. AshleyHesketh #271854 Grid unnumbered No error range DNSWithdrew Not assessedQualifying unavailable
J. JabouilleRenault #242031 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

Ongais+87.3 Elo

Largest Elo loss

Laffite−93.4 Elo

Largest grid-to-finish gain

Ongais+15 places

The bigger picture

Championship after this round

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

  1. 1 Lauda 72pts 0
  2. 2 Scheckter 55pts +1
  3. 3 Andretti 47pts −1
  4. 4 Reutemann 36pts 0
  5. 5 Hunt 31pts 0

Movement since round 15. 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.

Shadow

JonesP4+61.0 Elo
PatreseDNF+25.2 Elo

Non-finish recorded; no finishing gap comparison.

Hesketh

KeeganDNF−28.6 Elo
AshleyDNS−21.1 Elo

Non-finish recorded; no finishing gap comparison.

Brabham

StuckDNF−63.9 Elo
WatsonDNF−60.1 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 →
27
Result Entries
Avg Elo
Highest Elo (Scheckter)
20
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇿🇦 J.Scheckter 9 +8 +9 55 P2 +51.9 2,352
P2 🇫🇷 P.Depailler 6 +4 +6 16 P10 +78.6 2,232
P3 🇩🇪 J.Mass 5 +2 +4 25 P6 +66.1 2,244
P4 🇦🇺 A.Jones 7 +3 +3 19 P8 +61.0 2,232
P5 🇫🇷 P.Tambay 16 +11 +2 5 P18 +85.5 2,122
DNF 🇮🇹 V.Brambilla 15 +1 6 P16 +54.7 2,196
P7 🇺🇸 D.Ongais 22 +15 0 0 P25 +87.3 2,050
P8 🇧🇷 A.Ribeiro 23 +15 0 0 P26 +68.3 2,092
DNF 🇺🇸 M.Andretti 1 0 47 P3 -1.5 2,300
DNF 🇮🇹 R.Patrese 8 0 0 P29 +25.2 2,179
DNF 🇺🇸 B.Lunger 20 0 0 P28 +15.6 2,182
DNF 🇨🇦 G.Villeneuve 17 0 0 P35 +32.2 2,099
DNF 🇬🇧 J.Hunt 2 0 31 P5 -20.4 2,245
DNF 🇧🇪 P.Nève 21 0 0 P22 +7.6 2,123
DNF 🇸🇪 R.Peterson 3 0 7 P14 -17.9 2,178
DNF 🇬🇧 R.Keegan 25 0 0 P21 -28.6 2,184
DNF 🇦🇹 H.Binder 24 0 0 P27 -15.6 2,114
DNF 🇿🇦 I.Scheckter 18 0 0 P32 -7.2 2,058
DNF 🇧🇷 E.Fittipaldi 19 0 11 P12 -29.7 2,103
DNF 🇦🇷 C.Reutemann 12 0 36 P4 -84.8 2,270
DNF 🇩🇪 H.Stuck 13 0 12 P11 -63.9 2,158
DNF 🇸🇪 G.Nilsson 4 0 20 P7 -43.6 2,064
DNF 🇫🇷 J.Laffite 11 0 16 P9 -93.4 2,203
DNF 🇬🇧 J.Watson 10 0 9 P13 -60.1 2,061
DNF 🇨🇭 C.Regazzoni 14 0 5 P17 -86.8 2,119
DNS 🇬🇧 I.Ashley 0 0 0 P40 -21.1 1,833
DNQ 🇫🇷 J.Jabouille 0 0 0 P43 -59.5 1,971

Qualifying results are not available for this race.

Elo Changes