Round 3 · 1950

Indianapolis Motor Speedway

Indianapolis, USA · May 30, 1950 · Circuit History · Wikipedia

Kings of this circuit
The race, in perspective

Race debrief

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

R031950
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34 stored results 34/34 Elo snapshots 34/34 numbered grid slots 0/34 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.

0/34 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.

0/34 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 → P34vs expectedReading
J. ParsonsKurtis Kraft #17.52000 No error range P1 Not assessedQualifying unavailable
B. HollandDeidt #17.52000 No error range P2 Not assessedQualifying unavailable
M. RoseDeidt #17.52000 No error range P3 Not assessedQualifying unavailable
C. GreenKurtis Kraft #17.52000 No error range P4 Not assessedQualifying unavailable
J. ChitwoodKurtis Kraft #17.52000 No error range P5 Not assessedQualifying unavailable
L. WallardMoore #17.52000 No error range P6 Not assessedQualifying unavailable
W. FaulknerKurtis Kraft #17.52000 No error range P7 Not assessedQualifying unavailable
G. ConnorLesovsky #17.52000 No error range P8 Not assessedQualifying unavailable
P. RussoNichels #17.52000 No error range P9 Not assessedQualifying unavailable
P. FlahertyKurtis Kraft #17.52000 No error range P10 Not assessedQualifying unavailable
M. FohrMarchese #17.52000 No error range P11 Not assessedQualifying unavailable
D. CarterStevens #17.52000 No error range P12 Not assessedQualifying unavailable
M. HellingsKurtis Kraft #17.52000 No error range P13 Not assessedQualifying unavailable
J. McGrathKurtis Kraft #17.52000 No error range DNFSpun off Not assessedQualifying unavailable
T. RuttmanLesovsky #17.52000 No error range P15 Not assessedQualifying unavailable
G. HartleyLangley #17.52000 No error range P16 Not assessedQualifying unavailable
J. DaviesEwing #17.52000 No error range P17 Not assessedQualifying unavailable
J. McDowellKurtis Kraft #17.52000 No error range P18 Not assessedQualifying unavailable
W. BrownKurtis Kraft #17.52000 No error range P19 Not assessedQualifying unavailable
T. WebbMaserati #17.52000 No error range P20 Not assessedQualifying unavailable
J. HoytKurtis Kraft #17.52000 No error range P21 Not assessedQualifying unavailable
W. AderRae #17.52000 No error range P22 Not assessedQualifying unavailable
J. HolmesOlson #17.52000 No error range DNFSpun off Not assessedQualifying unavailable
J. RathmannWetteroth #17.52000 No error range P24 Not assessedQualifying unavailable
H. BanksMaserati #17.52000 No error range DNFOil line Not assessedQualifying unavailable
B. SchindlerSnowberger #17.52000 No error range DNFTransmission Not assessedQualifying unavailable
B. LevrettAdams #17.52000 No error range DNFOil pressure Not assessedQualifying unavailable
B. CantrellAdams #17.52000 No error range DNFOil pressure Not assessedQualifying unavailable
F. AgabashianKurtis Kraft #17.52000 No error range DNFOil leak Not assessedQualifying unavailable
J. JacksonKurtis Kraft #17.52000 No error range DNFSupercharger Not assessedQualifying unavailable
S. HanksKurtis Kraft #17.52000 No error range DNFOil pressure Not assessedQualifying unavailable
T. BettenhausenDeidt #17.52000 No error range DNFWheel bearing Not assessedQualifying unavailable
D. RathmannWatson #17.52000 No error range DNFStalled Not assessedQualifying unavailable
D. DinsmoreKurtis Kraft #17.52000 No error range DNFOil leak 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

Parsons+236.3 Elo

Largest grid-to-finish gain

Wallard+17 places

The bigger picture

Championship after this round

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

  1. 1 Farina 9pts 0
  2. 2 Fangio 9pts 0
  3. 3 Parsons 9pts
  4. 4 Fagioli 6pts −1
  5. 5 Ascari 6pts −1

Movement since round 2. 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.

Maserati

WebbP20−35.8 Elo
BanksDNF−107.4 Elo

Non-finish recorded; no finishing gap comparison.

Adams

LevrettDNF−136.1 Elo
CantrellDNF−150.4 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 →
34
Result Entries
Avg Elo
Highest Elo (Parsons)
12
Non-finishes

Race

Qualifying

# Driver Grid +/- Points Season Pts Season # Elo Change Elo
P1 🇺🇸 J.Parsons 5 +4 +9 9 P3 +236.3 2,236
P2 🇺🇸 B.Holland 10 +8 +6 6 P6 +222.0 2,222
P3 🇺🇸 M.Rose 3 +4 4 P9 +207.7 2,208
P4 🇺🇸 C.Green 12 +8 +3 3 P11 +193.4 2,193
P5 🇺🇸 J.Chitwood 9 +4 +1 1 P16 +179.1 2,179
P6 🇺🇸 L.Wallard 23 +17 0 0 P18 +164.7 2,165
P7 🇺🇸 W.Faulkner 1 -6 0 0 P21 +150.4 2,150
P8 🇺🇸 G.Connor 4 -4 0 0 P23 +136.1 2,136
P9 🇺🇸 P.Russo 19 +10 0 0 P25 +121.8 2,122
P10 🇺🇸 P.Flaherty 11 +1 0 0 P26 +107.4 2,107
P11 🇺🇸 M.Fohr 16 +5 0 0 P29 +93.1 2,093
P12 🇺🇸 D.Carter 13 +1 0 0 P30 +78.8 2,079
P13 🇺🇸 M.Hellings 26 +13 0 0 P31 +64.5 2,064
DNF 🇺🇸 J.McGrath 6 0 0 P32 +50.1 2,050
P15 🇺🇸 T.Ruttman 24 +9 0 0 P33 +35.8 2,036
P16 🇺🇸 G.Hartley 31 +15 0 0 P34 +21.5 2,021
P17 🇺🇸 J.Davies 27 +10 0 0 P35 +7.2 2,007
P18 🇺🇸 J.McDowell 33 +15 0 0 P36 -7.2 1,993
P19 🇺🇸 W.Brown 20 +1 0 0 P37 -21.5 1,979
P20 🇺🇸 T.Webb 14 -6 0 0 P38 -35.8 1,964
P21 🇺🇸 J.Hoyt 15 -6 0 0 P39 -50.1 1,950
P22 🇺🇸 W.Ader 29 +7 0 0 P40 -64.5 1,936
DNF 🇺🇸 J.Holmes 30 0 0 P41 -78.8 1,921
P24 🇺🇸 J.Rathmann 28 +4 0 0 P42 -93.1 1,907
DNF 🇺🇸 H.Banks 21 0 0 P67 -107.4 1,893
DNF 🇺🇸 B.Schindler 22 0 0 P59 -121.8 1,878
DNF 🇺🇸 B.Levrett 17 0 0 P61 -136.1 1,864
DNF 🇺🇸 B.Cantrell 17 0 0 P60 -150.4 1,850
DNF 🇺🇸 F.Agabashian 2 0 0 P62 -164.7 1,835
DNF 🇺🇸 J.Jackson 32 0 0 P63 -179.1 1,821
DNF 🇺🇸 S.Hanks 25 0 0 P64 -193.4 1,807
DNF 🇺🇸 T.Bettenhausen 8 0 1 P15 -207.7 1,792
DNF 🇺🇸 D.Rathmann 18 0 0 P65 -222.0 1,778
DNF 🇺🇸 D.Dinsmore 7 0 0 P66 -236.3 1,764

Qualifying results are not available for this race.

Elo Changes