LOSSMarch 4, 2023William KUO0 - 2Brayden ZAREFSKY2023 U.S. Open Championships (Kyorugi) · M-51kg · Round of 16
LOSSFebruary 27, 2020William KUO8 - 23Enrique GONZALEZ2020 U.S. Open (Kyorugi) · M-53kg · Quarter Finals
LOSSFebruary 28, 2019William KUO0 - 15Patpiich PALSSON2019 U.S. Open (Kyorugi) · M-53kg · Round of 32