Robert O'Brien was a American Formula 1 driver who competed 1952. across 1 races, taking 0 wins, 0 podiums and 0 pole positions for Simca.
| Year | Team | Pos | Points | Wins | Races | Best |
|---|---|---|---|---|---|---|
| 1952 | Simca | P60 | 0 | 0 | 1 | P14 |
| Year | Race | Team | Grid | Finish | Pts | Status |
|---|---|---|---|---|---|---|
| 1952 | Belgian Grand Prix | Simca | 22 | 14 | 0 | +6 Laps |