Elo Rating Over Time
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 1978 Season | |||||||||
| 26 | -13.7 | 1,891 | 1,877 | Did not qualify | Ensign | Long Beach | Apr 02, 1978 | Round 4 | |
| 29 | -44.2 | 1,935 | 1,891 | Did not qualify | Ensign | Kyalami | Mar 04, 1978 | Round 3 | |
| 23 | -17.8 | 1,953 | 1,935 | Transmission | Ensign | Autódromo Internacional Nelson Piquet | Jan 29, 1978 | Round 2 | |
| 22 | -20.5 | 1,973 | 1,953 | Engine | Ensign | Autódromo Juan y Oscar Gálvez | Jan 15, 1978 | Round 1 | |
| 1977 Season | |||||||||
| 27 | -27.7 | 2,000 | 1,972 | Did not qualify | Surtees | Autodromo Nazionale di Monza | Sep 11, 1977 | Round 14 | |