10. Carla Esparza (0 title defenses as strawweight champion)
[autotag]Carla Esparza[/autotag] was a cast member of Season 20 of “The Ultimate Fighter,” a tournament to crown the inaugural UFC strawweight champion.
The former Invicta FC 115-pound champ was the No. 1 seed and lived up to her ranking by defeating Angela Hill, Tecia Torres and Jessica Penne, en route to a finals showdown with Rose Namajunas.
Esparza used her strong wrestling to take down and control Namajunas on the ground, submitting her in Round 3 to win the title and the tournament.
She wasn’t able to defend, however, as she lost to Joanna Jedrzejczyk and has been on the climb back ever since.