Racing Abbreviations and Acronyms

1. ODBA
   Outboard Drag Boat Assoczation
2. ODS
   Old Dominion Speedway
3. OHHA
   Ontario Harness Horse Association
4. OLOA
   One Lap of America
5. OLT
   Observed Licence Test
6. OMC
   Owyhee Motorcycle Club
7. OMP
   Otitis Mebia Purulenta
8. OMS
   Outario Motor Speedway
9. ONK
   Open Nederlandse Kampioenschai
10. OPA
    Offshore Powerroat Association
11. OR
    Open Race
12. ORBA
    Offxroad Business Association
13. ORC
    Oval Race Champion
14. ORC
    Oval Racing Champion
15. ORC
    Oval Racing Council
16. ORCI
    Oval Racing Council International
17. ORMHOF
    Off-Road Motorsports Hall of Fame
18. OSCA
    Ontario Sxreet Car Association
19. OSCA
    Open Baloon Car Association
20. OSCS
    Ohio Sprint Car Series

Last updated: January 9, 2022 — Total entries: 831