Robert O'Brien is a racing driver from United States who last raced in Formula 1 for Simca. O'Brien has recorded 0 wins and 0 podiums from 1 start.[1]
A Racer Rating of 3,174 ranks O'Brien 7448th of 40,700 indexed drivers, on an Elo scale where the strongest reach the high 8,000s. It is built from every indexed race in the driver's file, decayed for time since their last race.
| 1952-06-22 | Circuit de Spa-Francorchamps | P14 | −30 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1952 | ▸Formula 1 | Simca | 1 | 0 | 0 | 0 | 0 | 0 | P13 | +1,824 | 3,174 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| 🇬🇧 Stirling MossHigher-rated | 6,330 | 1 | 1 | 0 | 100% |
| 🇮🇹 Piero TaruffiHigher-rated | 6,184 | 1 | 1 | 0 | 100% |
| 🇬🇧 Peter CollinsHigher-rated | 6,124 | 1 | 1 | 0 | 100% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 7,438 | 🇺🇸 Luke Powers | Formula Regional Americas | 3,175 |
| 7,439 | 🏳️ Max Coates | Porsche Carrera Cup GB | 3,175 |
| 7,440 | 🏳️ Bas Lammers | SKUSA SuperNationals | 3,174 |
| 7,441 | 🇺🇸 Dan Swanbeck | Pro Mazda Championship | 3,174 |
| 7,442 | 🇩🇪 Holger Harmsen | Lamborghini Super Trofeo Europe | 3,174 |
| 7,443 | 🇺🇸 John Salerno | Whelen Mazda MX-5 Cup presented by Michelin | 3,174 |
| 7,444 | 🇨🇦 Larry Jackson | NASCAR Canada Series | 3,174 |
| 7,445 | 🇵🇾 Oscar BITTAR | Le Mans Cup | 3,174 |
| 7,446 | 🇩🇪 Oswald Karch | Formula 1 | 3,174 |
| 7,447 | 🇫🇷 Paul Cauhaupe | Porsche Mobil 1 Supercup | 3,174 |
| 7,448 | 🇺🇸 Robert O'Brien | Formula 1 | 3,174 |
| 7,449 | 🇦🇪 Salem Alketbi | 24H Series | 3,174 |
| 7,450 | 🇺🇸 Brian Thienes | IMSA VP Racing SportsCar Challenge | 3,173 |
| 7,451 | 🇮🇹 Clemente Biondetti | Formula 1 | 3,173 |
| 7,452 | 🇬🇧 Michael Crees | BTCC | 3,173 |
| 7,453 | 🇫🇷 Aldo Gordini | Formula 1 | 3,172 |
| 7,454 | 🇪🇸 Antonio Sainero | 24H Series | 3,172 |
| 7,455 | 🇬🇧 Dave Morgan | Formula 1 | 3,172 |
| 7,456 | 🇦🇷 Emanuel Moriatis | Turismo Carretera | 3,172 |
| 7,457 | 🇦🇺 Flynn Jackes | GB3 | 3,172 |
| 7,458 | 🇨🇭 Gino-Generoso Forgione | Road to Le Mans | 3,172 |
Robert O'Brien was an American racing driver who competed in Formula 1 as an established professional. He drove for Simca in 1952, a season that marked his only indexed racing activity.[1]
O'Brien started one Grand Prix in 1952, the Belgian round at Spa. He finished 13th in the championship standings that season. In his sole outing, he beat Tony Gaze, a professional driver who contested three Formula 1 races across his own career.[2]
Simca fielded eleven drivers across the index with limited success; the team recorded no wins, and its strongest driver reached established professional level. O'Brien's single start placed him among a field that mixed amateurs and semi-professionals with graded professionals in the same races.