Round 2 · 1973

Autódromo José Carlos Pace

São Paulo, Brazil · February 11, 1973 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R021973
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20 stored results 20/20 Elo snapshots 20/20 numbered grid slots 0/20 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.

0/20 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.

0/20 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 → P20vs expectedReading
E. FittipaldiTeam Lotus #62221 No error range P1 Not assessedQualifying unavailable
J. StewartTyrrell #22338 No error range P2 Not assessedQualifying unavailable
D. HulmeMcLaren #12368 No error range P3 Not assessedQualifying unavailable
A. MerzarioFerrari #92118 No error range P4 Not assessedQualifying unavailable
J. IckxFerrari #52223 No error range P5 Not assessedQualifying unavailable
C. RegazzoniBRM #72180 No error range P6 Not assessedQualifying unavailable
H. GanleyIso Marlboro #122074 No error range P7 Not assessedQualifying unavailable
N. LaudaBRM #171996 No error range P8 Not assessedQualifying unavailable
N. GalliIso Marlboro #201838 No error range P9 Not assessedQualifying unavailable
F. CevertTyrrell #42227 No error range P10 Not assessedQualifying unavailable
C. ReutemannBrabham #191940 No error range P11 Not assessedQualifying unavailable
L. BuenoSurtees #162000 No error range P12 Not assessedQualifying unavailable
J. BeltoiseBRM #142002 No error range DNFElectrical Not assessedQualifying unavailable
M. BeuttlerMarch #112078 No error range DNFOverheating Not assessedQualifying unavailable
C. PaceSurtees #181961 No error range DNFSuspension Not assessedQualifying unavailable
M. HailwoodSurtees #102089 No error range DNFGearbox Not assessedQualifying unavailable
J. JarierMarch #132040 No error range DNFGearbox Not assessedQualifying unavailable
R. PetersonTeam Lotus #82179 No error range DNFWheel Not assessedQualifying unavailable
W. FittipaldiBrabham #152001 No error range DNFOverheating Not assessedQualifying unavailable
P. RevsonMcLaren #32257 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 Elo gain

Galli+65.7 Elo

Largest Elo loss

Revson−115.9 Elo

Largest grid-to-finish gain

Merzario+13 places

The bigger picture

Championship after this round

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

  1. 1 Fittipaldi 18pts 0
  2. 2 Stewart 10pts +1
  3. 3 Cevert 6pts −1
  4. 4 Hulme 6pts +1
  5. 5 Ickx 5pts −1

Movement since round 1. 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.

McLaren

HulmeP3+14.6 Elo
RevsonDNF−115.9 Elo

Non-finish recorded; no finishing gap comparison.

March

BeuttlerDNF−24.6 Elo
JarierDNF−42.8 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 →
20
Result Entries
Avg Elo
Highest Elo (Hulme)
8
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇧🇷 E.Fittipaldi 2 +1 +9 18 P1 +58.8 2,280
P2 🇬🇧 J.Stewart 8 +6 +6 10 P2 +28.1 2,367
P3 🇳🇿 D.Hulme 5 +2 +4 6 P4 +14.6 2,383
P4 🇮🇹 A.Merzario 17 +13 +3 3 P6 +54.6 2,172
P5 🇧🇪 J.Ickx 3 -2 +2 5 P5 +23.2 2,246
P6 🇨🇭 C.Regazzoni 4 -2 +1 1 P7 +23.4 2,203
P7 🇳🇿 H.Ganley 14 +7 0 0 P9 +37.7 2,112
P8 🇦🇹 N.Lauda 13 +5 0 0 P10 +45.7 2,042
P9 🇮🇹 N.Galli 18 +9 0 0 P12 +65.7 1,904
P10 🇫🇷 F.Cevert 9 -1 0 6 P3 -21.8 2,205
P11 🇦🇷 C.Reutemann 7 -4 0 0 P14 +30.7 1,970
P12 🇧🇷 L.Bueno 20 +8 0 0 P15 +9.8 2,010
DNF 🇫🇷 J.Beltoise 10 0 0 P17 +0.6 2,002
DNF 🇬🇧 M.Beuttler 19 0 0 P13 -24.6 2,053
DNF 🇧🇷 C.Pace 6 0 0 P19 -8.7 1,952
DNF 🇬🇧 M.Hailwood 14 0 0 P20 -44.7 2,044
DNF 🇫🇷 J.Jarier 15 0 0 P16 -42.8 1,997
DNF 🇸🇪 R.Peterson 1 0 0 P18 -82.2 2,097
DNF 🇧🇷 W.Fittipaldi 11 0 1 P8 -52.1 1,949
DNF 🇺🇸 P.Revson 12 0 0 P11 -115.9 2,141

Qualifying results are not available for this race.

Elo Changes