Elo Rating Over Time
1971 Season
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 21 | -2.1 | 1,914 | 1,911 | Not classified | Lotus-Ford | Watkins Glen | Oct 03, 1971 | Round 11 | |
| 18 | +13.6 | 1,900 | 1,914 | Not classified | Lotus-Ford | Mosport International Raceway | Sep 19, 1971 | Round 10 |
1970 Season
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 26 | -67.2 | 1,967 | 1,900 | Did not qualify | Team Lotus | Watkins Glen | Oct 04, 1970 | Round 12 | |
| 10 | +73.2 | 1,894 | 1,967 | Not classified | Team Lotus | Brands Hatch | Jul 18, 1970 | Round 7 | |
| 23 | -70.4 | 1,964 | 1,894 | Did not qualify | Team Lotus | Charade Circuit | Jul 05, 1970 | Round 6 | |
| 23 | -88.1 | 2,052 | 1,964 | Did not qualify | Team Lotus | Circuit Park Zandvoort | Jun 21, 1970 | Round 5 |
1969 Season
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 9 | +30.1 | 2,022 | 2,052 | +3 Laps | Lotus-Ford | Autódromo Hermanos Rodríguez | Oct 19, 1969 | Round 11 | |
| 14 | -39.1 | 2,061 | 2,022 | Halfshaft | Lotus-Ford | Watkins Glen | Oct 05, 1969 | Round 10 | |
| 7 | +78.7 | 1,983 | 2,061 | +9 Laps | Lotus-Ford | Mosport International Raceway | Sep 20, 1969 | Round 9 |
1960 Season
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 11 | +78.9 | 1,904 | 1,983 | +6 Laps | Cooper-Castellotti | Riverside International Raceway | Nov 20, 1960 | Round 10 |
1959 Season
| # | Elo | Old | New | Status | Circuit | Date | Race | ||
|---|---|---|---|---|---|---|---|---|---|
| 22 | -96.1 | 2,000 | 1,904 | Did not qualify | Team Lotus | Circuit de Monaco | May 10, 1959 | Round 1 |