THE STORY
On November 15, 2015, at UFC 193 in Melbourne, Australia, Holly Holm defeated Ronda Rousey by knockout in the second round, ending Rousey's undefeated streak and capturing the Women's Bantamweight Championship. Holm's victory was achieved with a head kick to Rousey's neck. (si.com)
TEAMS / PEOPLE:
Ronda Rousey, Holly Holm
WHY IT MATTERS
This upset marked a significant turning point in women's mixed martial arts, highlighting the sport's unpredictability and the potential for challengers to dethrone dominant champions.