Elo Rating Over Time
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 1975 Season | |||||||||
| 6 | +79.7 | 2,057 | 2,136 | Finished | Ensign | Nürburgring | Aug 03, 1975 | Round 11 | |
| 15 | +6.7 | 2,050 | 2,057 | +1 Lap | Ensign | Circuit Paul Ricard | Jul 06, 1975 | Round 9 | |
| 10 | +58.2 | 1,992 | 2,050 | +4 Laps | Ensign | Circuit Park Zandvoort | Jun 22, 1975 | Round 8 | |
| 1974 Season | |||||||||
| 27 | -96.7 | 2,088 | 1,991 | Did not qualify | Iso Marlboro | Circuit Park Zandvoort | Jun 23, 1974 | Round 8 | |
| 14 | +17.3 | 2,071 | 2,088 | +3 Laps | Iso Marlboro | Nivelles-Baulers | May 12, 1974 | Round 5 | |
| 1973 Season | |||||||||
| 21 | -73.5 | 2,147 | 2,073 | Overheating | Iso Marlboro | Autodromo Nazionale di Monza | Sep 09, 1973 | Round 13 | |
| 9 | +18.5 | 2,128 | 2,147 | +2 Laps | Iso Marlboro | Red Bull Ring | Aug 19, 1973 | Round 12 | |
| 6 | +57.6 | 2,070 | 2,128 | +2 Laps | Iso Marlboro | Circuit Park Zandvoort | Jul 29, 1973 | Round 10 | |
| 1971 Season | |||||||||
| 8 | +74.9 | 2,000 | 2,075 | +5 Laps | Surtees | Circuit Park Zandvoort | Jun 20, 1971 | Round 4 | |