Elo Rating Over Time
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 1975 Season | |||||||||
| 6 | +79.5 | 2,065 | 2,145 | Finished | Ensign | Nürburgring | Aug 03, 1975 | Round 11 | |
| 15 | +6.8 | 2,059 | 2,065 | +1 Lap | Ensign | Circuit Paul Ricard | Jul 06, 1975 | Round 9 | |
| 10 | +58.2 | 2,000 | 2,059 | +4 Laps | Ensign | Circuit Park Zandvoort | Jun 22, 1975 | Round 8 | |
| 1974 Season | |||||||||
| 27 | -97.2 | 2,098 | 2,000 | Did not qualify | Iso Marlboro | Circuit Park Zandvoort | Jun 23, 1974 | Round 8 | |
| 14 | +16.4 | 2,081 | 2,098 | +3 Laps | Iso Marlboro | Nivelles-Baulers | May 12, 1974 | Round 5 | |
| 1973 Season | |||||||||
| 21 | -73.3 | 2,155 | 2,081 | Overheating | Iso Marlboro | Autodromo Nazionale di Monza | Sep 09, 1973 | Round 13 | |
| 9 | +18.8 | 2,136 | 2,155 | +2 Laps | Iso Marlboro | Red Bull Ring | Aug 19, 1973 | Round 12 | |
| 6 | +57.9 | 2,078 | 2,136 | +2 Laps | Iso Marlboro | Circuit Park Zandvoort | Jul 29, 1973 | Round 10 | |
| 1971 Season | |||||||||
| 8 | +77.7 | 2,000 | 2,078 | +5 Laps | Surtees | Circuit Park Zandvoort | Jun 20, 1971 | Round 4 | |