Résultats
| UFC Fight Night | 06/20 22:45 | - | Marc-Andre Barriault v Piechota, Oskar | 1-0 | |
| UFC | 12/14 23:15 | - | Punahele Soriano v Piechota, Oskar | 1-0 | |
| UFC Fight Night | 08/11 00:40 | - | Rodolfo Vieira v Piechota, Oskar | 1-0 | |
| UFC Fight Night | 02/18 23:00 | - | Piechota, Oskar v Williams, Tim | 1-0 | |
| UFC Fight Night | 10/21 19:00 | - | Wilson, Jonathan v Piechota, Oskar | 0-1 |