Organizace Extreme Fighting Challenge (Ohio) pořádala první akci 25. 1. 2003 pod názvem 'EFC 3 - Extreme Fighting Challenge 3' (Columbus, Ohio, United States).
Do dnešního dne uspořádala celkem 9 akcí (USA).
Extreme Fighting Challenge (Ohio)
| Datum | Země | Název, adresa |
|---|---|---|
| 21.4.2006 |  | EFC 13 - Extreme Fighting Challenge 13 Lifetime PavilionColumbus, Ohio, United States |
| 21.1.2006 | | EFC 12 - Extreme Fighting Challenge 12 Columbus, Ohio, United States |
| 5.3.2005 | | EFC 11 - Extreme Fighting Challenge 11 Columbus, Ohio, United States |
| 29.1.2005 | | EFC 10 - Extreme Fighting Challenge 10 Columbus, Ohio, United States |
| 10.9.2004 | | EFC 9 - Extreme Fighting Challenge 9 Cleveland, Ohio, United States |
| 5.3.2004 | | EFC 7 - Extreme Fighting Challenge 7 Columbus, Ohio, United States |
| 24.1.2004 | | EFC 6 - Extreme Fighting Challenge 6 Columbus, Ohio, United States |
| 28.2.2003 | | EFC 4 - Extreme Fighting Challenge 4 PromoWest PavilionColumbus, Ohio, United States |
| 25.1.2003 | | EFC 3 - Extreme Fighting Challenge 3 Columbus, Ohio, United States |
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