Who doesn’t love a good upset? In 2021, MMA saw its fair share of underdogs who defied the odds – in the UFC, Bellator and beyond. While everyone has an opinion of who should win and who should lose, the oddsmakers largely get the final say on what history reflects. This year, with the help of MMA database Tapology , MMA Junkie has compiled the top 10 betting upsets of 2021.