Undisputed minimumweight world champion Seniesa “Super Bad” Estrada has announced her retirement.

The East Los Angeles star is calling it a day after a 13-year professional career.

Estrada retires with a 26-0 (9 KOs) record having won world titles in two weight classes, going 7-0 in title fights. A pound-for-pound mainstay who holds the world record for the fastest KO in women’s boxing history—just seven seconds—Estrada saved her best for the final stretch of her career.

After signing with Top Rank in July 2022, Estrada moved towards the undisputed title and in March 2023, she became a unified champion after shutting out then-WBC champion Tina Rupprecht. Four months later, Estrada defeated Argentina’s Leonela Yudica by decision and, in March, came a bad-blood battle that saw her defeat fellow unified champion Yokasta Valle over 10 rounds. With the win, Estrada became the minimumweight division’s first-ever undisputed queen, a legacy-defining triumph that became her curtain call.

“Seniesa Estrada is a spectacular person and fighter, and I know she can look forward to a happy and productive life outside the ring,” said Top Rank Chairman Bob Arum. “Everyone at Top Rank will miss promoting her boxing career.”

Estrada took to social media to thank the sport “For 23 years of ups and downs” that she called “the worst and best years of her life.”

She thanked family and friends, Bob Arum and Top Rank.

“Most of all, my team,” he said. “We did everything we imagined I would do and more as a woman in a male dominated sport. It’s been one wild ride. Thank you for standing by me. I hope that my style of fighting is one that people will remember forever. Only God knows how long I’ve been contemplating this decision. Physically and mentally, I can’t continue anymore….”

Estrada said she was “at peace” with her decision, and signed off, “With love forever, Superbad.”