Strawweight in MMA is contested at a 115-pound (52-kilogram) limit and is the smallest weight class in the UFC for women. Most major promotions, including the UFC, PFL, Invicta FC, and Bellator's former roster, organize their women's rosters around this division, and it has produced some of the deepest talent pools in the sport.
The UFC launched its women's strawweight title in 2014 through The Ultimate Fighter season 20, with Carla Esparza winning the inaugural belt. The division then defined itself through a series of dominant champions. Joanna Jędrzejczyk built one of the most lopsided reigns in UFC history with five successful title defenses between 2015 and 2017, leaning on Muay Thai distance management and volume kickboxing. Rose Namajunas ended that reign with a head-kick knockout and brought a more eclectic, footwork-driven style. Weili Zhang, who first held the belt in 2019 and reclaimed it years later, blends explosive wrestling, sharp boxing, and submission grappling, and is widely considered one of the most complete fighters in the division's history.
Other notable champions include Carla Esparza, who is one of only two fighters to capture the UFC strawweight belt twice, and Jessica Andrade, who briefly held the title with a brutal slam knockout. Outside the UFC, Invicta FC has historically been a feeder for the division, producing fighters like Claudia Gadelha and Livia Renata Souza.
Record-wise, Joanna Jędrzejczyk's five consecutive UFC strawweight title defenses remain the benchmark, while Weili Zhang holds the record for the fastest finish in a UFC women's title bout with her 42-second knockout of Andrade in 2019. The division has also produced more decisions than knockouts at the elite level, reflecting the technical, distance-managing nature of its top fighters.
Strawweight is often described as a striker's division punctuated by elite grapplers. The smaller frames allow for very high output, with fighters routinely throwing 100-plus significant strikes per round in title fights. Cardio and pace tend to neutralize size advantages, and clinch wrestling is a dividing line between contenders and champions. Finishing rates are lower than in heavier divisions; many strawweight title fights go the full 25 minutes.
In terms of crossover, the UFC's strawweight limit lines up almost exactly with ONE Championship's atomweight (115 pounds), though ONE's hydration-tested weigh-ins effectively make fighters cut less, so a UFC strawweight is closer to a ONE strawweight (125 lb) in walking-around size. Boxing has no perfect equivalent because women's boxing minimumweight starts at 102 pounds and light flyweight at 105 pounds, so a typical UFC strawweight would compete in boxing's flyweight (112 lb) or even bantamweight (118 lb) range. Muay Thai stadium weights are usually lower for women, so a strawweight MMA fighter often campaigns one or two divisions up in pure striking.