Elo Rating Over Time
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 1975 Season | |||||||||
| 14 | +83.3 | 1,780 | 1,863 | +2 Laps |
|
Kyalami | Mar 01, 1975 | Round 3 | |
| 1974 Season | |||||||||
| 19 | +33.6 | 1,746 | 1,780 | +7 Laps |
|
Kyalami | Mar 30, 1974 | Round 3 | |
| 1973 Season | |||||||||
| 22 | -4.0 | 1,750 | 1,746 | Accident | Team Lotus | Kyalami | Mar 03, 1973 | Round 3 | |
| 1972 Season | |||||||||
| 26 | -31.9 | 1,782 | 1,750 | Physical | Team Lotus | Nürburgring | Jul 30, 1972 | Round 8 | |
| 22 | -2.9 | 1,785 | 1,782 | Gearbox | Team Lotus | Brands Hatch | Jul 15, 1972 | Round 7 | |
| 25 | -50.1 | 1,835 | 1,785 | Did not qualify | Team Lotus | Charade Circuit | Jul 02, 1972 | Round 6 | |
| 26 | -64.9 | 1,900 | 1,835 | Fuel pump | Team Lotus | Kyalami | Mar 04, 1972 | Round 2 | |
| 1971 Season | |||||||||
| 22 | -52.6 | 1,953 | 1,900 | Engine | Lotus-Ford | Silverstone Circuit | Jul 17, 1971 | Round 6 | |
| 19 | -29.2 | 1,982 | 1,953 | Engine | Brabham | Kyalami | Mar 06, 1971 | Round 1 | |
| 1970 Season | |||||||||
| 12 | +45.3 | 1,937 | 1,982 | Engine | Team Lotus | Kyalami | Mar 07, 1970 | Round 1 | |
| 1968 Season | |||||||||
| 22 | -67.0 | 2,003 | 1,937 | Differential | Brabham-Repco | Kyalami | Jan 01, 1968 | Round 1 | |
| 1967 Season | |||||||||
| 7 | +92.2 | 1,911 | 2,003 | Not classified | Brabham-Climax | Kyalami | Jan 02, 1967 | Round 1 | |
| 1965 Season | |||||||||
| 28 | -88.7 | 2,000 | 1,911 | Did not prequalify | Lotus-Ford | Prince George Circuit | Jan 01, 1965 | Round 1 | |