Hide drivers with less than 10 entries
Show drivers who only participated in Indy 500
Ignore non-championship races
No | Driver | Races | Active Years |
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1249 | O'Brien, Robert | 2 |
1952 |
1251 | O'Rourke, Steve (Non-champ only) | 2 |
1982 |
1252 | O'Sullivan, Zak | 1 |
2023 |
1253 | O'Ward, Patricio | 2 |
2022–2023 |
1254 | Ocon, Esteban | 134 |
2016–2018, 2020–2024 |
1255 | Odlum, Richard (Non-champ only) | 2 |
1952–1953 |
1256 | Oliver, Jackie | 61 |
1967–1973, 1977 |
1257 | Oliver, Mike (Non-champ only) | 3 |
1952, 1955–1956 |
1258 | Olthoff, Bobby (Non-champ only) | 33 |
1968–1971 |
1259 | Ondet, Jean (Non-champ only) | 5 |
1945–1947 |
1260 | Ongais, Danny | 6 |
1977–1978 |
1261 | Oppitzhauser, Karl | 2 |
1976 |
1262 | Oreiller, Henri (Non-champ only) | 1 |
1953 |
1263 | Orley, Alexander (Non-champ only) | 2 |
1952–1953 |
1264 | Ouvaroff, Steve (Non-champ only) | 1 |
1958 |
1265 | Owen, Arthur | 2 |
1959–1960 |
1266 | Oxton, David (Non-champ only) | 1 |
1973 |
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