Many thought the UFC fighter wouldn't show after she suffered a shocking loss to Holly Holm. Rousey has been lying low, recovering from her injuries, since the knockout.
Still, she attended the ball with Marine Lance Cpl. Jarrod Haschert after what she told TMZ was "the worst month ever." Wearing a black loose-fitted formal gown, Rousey seemed to be enjoying herself at the ball, even posing for photos with her date.
Rousey also thanked Haschert for a lovely evening.
"Thank you Lance Cpl. Jarrod Haschert for taking me to the Marine Corps Ball, being such a gentleman, and putting a smile on my face again," she wrote on Instagram.
The 28-year-old fighter told TMZ ahead of the event that it was "an honor to be asked and honestly, I probably would stay on my couch crying and eating ice cream for like another month if he didn't ask me to go."