Robert O'Brien Formula One head-to-head driver comparisons
Back to Robert O'Brien career statistics
| Opponent | Races | Wins | Losses |
| Alberto Ascari | 1 | 0 | 1 |
| Jean Behra | 1 | 1 | 0 |
| Prince Bira | 1 | 0 | 1 |
| Eric Brandon | 1 | 0 | 1 |
| Alan Brown | 1 | 0 | 1 |
| Johnny Claes | 1 | 0 | 1 |
| Peter Collins | 1 | 1 | 0 |
| Charles de Tornaco | 1 | 0 | 1 |
| Nino Farina | 1 | 0 | 1 |
| Paul Frère | 1 | 0 | 1 |
| Tony Gaze | 1 | 1 | 0 |
| Mike Hawthorn | 1 | 0 | 1 |
| Roger Laurent | 1 | 0 | 1 |
| Arthur Legat | 1 | 0 | 1 |
| Lance Macklin | 1 | 0 | 1 |
| Robert Manzon | 1 | 0 | 1 |
| Robin Montgomerie-Charrington | 1 | 1 | 0 |
| Stirling Moss | 1 | 1 | 0 |
| Louis Rosier | 1 | 1 | 0 |
| Piero Taruffi | 1 | 1 | 0 |
| Ken Wharton | 1 | 1 | 0 |
