| FECHA | HORA | EVENTO | LOCATION |
| 7 Abr. | 6:00 AM | ONE On TNT 1: Moraes vs. Johnson | Singapore Indoor Stadium, Kallang, Singapore |
| 9 Abr. | 6PM | Bellator 256: Bader vs. Machida 2 | Mohegan Sun Arena, Uncasville, CT |
| 10 Abr. | 12PM | UFC Fight Night: Till vs. Vettori | UFC APEX, Las Vegas, NV |
| 14 Abr. | 6:00 AM | ONE On TNT 2: Lee vs. Nastyukhin | Singapore Indoor Stadium, Kallang, Singapore |
| 16 Abr. | 6PM | Bellator 257: Nemkov vs. Davis 2 | Mohegan Sun Arena, Uncasville, CT |
| 17 Abr. | 6PM | UFC Fight Night: Whittaker vs. Gastelum | UFC APEX, Las Vegas, NV |
| 21 Abr. | 6:00 AM | ONE On TNT 3 | Singapore Indoor Stadium, Kallang, Singapore |
| 23 Abr. | 5.30PM | PFL 1: Regular Season, 1st Half | Ocean Casino Resort, Atlantic City, NJ |
| 24 Abr. | 10:00 AM | KSW 60 | |
| 24 Abr. | 10AM | UFC 261: Usman vs. Masvidal 2 | VyStar Veterans Memorial Arena, Jacksonville, FL |
| 28 Abr. | 6:00 AM | ONE On TNT 4: N Sang vs. Bigdash | Singapore Indoor Stadium, Kallang, Singapore |
| 29 Abr. | 5,30PM | PFL 2: Regular Season, 1st Half | Ocean Casino Resort, Atlantic City, NJ |
| 1 May. | 7PM | UFC Fight Night: Reyes vs. Prochazka | |
| 6 May. | 5.30PM | PFL 3: Regular Season, 1st Half | Ocean Casino Resort, Atlantic City, NJ |
| 7 May. | 6PM | Bellator 258: Archuleta vs. Pettis | Mohegan Sun Arena, Uncasville, CT |
| 8 May. | 5PM | UFC Fight Night: Sandhagen vs. Dillashaw | |
| 15 May. | 6,15PM | UFC 262: Oliveira vs. Chandler | Toyota Center (Houston), Houston, TX |
| 22 May. | 4PM | UFC Fight Night: Font vs. Garbrandt | |
| 28 May. | 6:00 AM | ONE Atomweight World Grand Prix | |
| 10 Jun. | 6,30PM | PFL 4: Regular Season, 2nd Half | Ocean Casino Resort, Atlantic City, NJ |
| 17 Jun. | 5,30PM | PFL 5: Regular Season, 2nd Half | Ocean Casino Resort, Atlantic City, NJ |
| 25 Jun. | 6,30PM | PFL 6: Regular Season, 2nd Half | Ocean Casino Resort, Atlantic City, NJ |
Calendario UFC, MMA – 2021 was last modified: abril 1st, 2021 by