Elo Rating Over Time
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 1977 Season | |||||||||
| 29 | -65.7 | 2,098 | 2,033 | Did not qualify | Surtees | Circuit Park Zandvoort | Aug 28, 1977 | Round 13 | |
| 16 | +2.8 | 2,096 | 2,098 | +2 Laps | Surtees | Red Bull Ring | Aug 14, 1977 | Round 12 | |
| 7 | +74.7 | 2,021 | 2,096 | +1 Lap | Surtees | Hockenheimring | Jul 31, 1977 | Round 11 | |
| 12 | +71.8 | 1,949 | 2,021 | +2 Laps | Surtees | Silverstone Circuit | Jul 16, 1977 | Round 10 | |
| 1975 Season | |||||||||
| 20 | -10.5 | 1,956 | 1,946 | Transmission | Embassy Hill | Scandinavian Raceway | Jun 08, 1975 | Round 7 | |
| 1974 Season | |||||||||
| 21 | +6.1 | 1,949 | 1,955 | Gearbox | Ensign | Nürburgring | Aug 04, 1974 | Round 11 | |
| 30 | -71.2 | 2,020 | 1,949 | Did not qualify | Ensign | Brands Hatch | Jul 20, 1974 | Round 10 | |
| 23 | -51.8 | 2,072 | 2,020 | Did not qualify | Ensign | Dijon-Prenois | Jul 07, 1974 | Round 9 | |
| 13 | +17.8 | 2,054 | 2,072 | Disqualified | Ensign | Circuit Park Zandvoort | Jun 23, 1974 | Round 8 | |
| 12 | +28.7 | 2,025 | 2,054 | Disqualified | Ensign | Scandinavian Raceway | Jun 09, 1974 | Round 7 | |
| 17 | -5.5 | 2,031 | 2,025 | Accident | Ensign | Circuit de Monaco | May 26, 1974 | Round 6 | |
| 15 | +30.9 | 2,000 | 2,031 | +3 Laps | Ensign | Nivelles-Baulers | May 12, 1974 | Round 5 | |