Hyerin Kim/Minhyeon Yoo (Gangwon, KOR) lost 6-4 to Kim/Jeong in the Final of the Korean Mixed Doubles National Championship, held July 23 - 31, 2023 in Gangneung, Korea. Advancing directly to the semifinals, Kim/Yoo won 7-3 over Kim/Jeong to advance to the championship game. of the 2023 Korean Mixed Doubles National Championship in Gangneung, Korea; of the 2023 Korean Mixed Doubles National Championship in Gangneung, Korea; Hyerin Kim/Minhyeon Yoo (Gangwon, KOR) qualified for the 2023 Korean Mixed Doubles National Championship playoffs, dropping their quarterfinals match 8-2 against Jiyoon Kim/ByeongJin Jeong (Seoul, KOR). of the 2023 Korean Mixed Doubles National Championship in Gangneung, Korea;
 
Kim/Yoo finished 8-0 in the 18-team qualifying round. . In their opening game, Kim/Yoo defeated Eunche Lee/Jinwoong Park (Daejon, KOR) 12-1, then won 10-5 against Minhyo Kang/JaeBeom Lee (Gyeongbuk, KOR) and 10-4 against Seunghee Yang/Taehwan Kim (Seoul, KOR). Kim/Yoo won 7-6 against Jaehee Jeong/Byeonghyo Chae (Jeonbuk, KOR), then won 9-6 against Youbeen Park/JeongJae Lee (Seoul, KOR) and 9-4 against Seonyeong Kim/Yeongseok Jeong (Gangwon, KOR). Kim/Yoo won 10-9 against Su ji Kim/Jeongmin Kim (Gyeonggido, KOR), then won 12-2 against Anah Jeong/Ohwoo Kwon (Bongmyung, KOR) in their final qualifying round match.
 
. For week 1 of the event schedule, Kim/Yoo did not improve upon their best events, dropping from th to 539th place overall on the World Ranking Standings with 0.000 total points. Kim/Yoo ranks 284th overall on the Year-to-Date rankings with 0.000 points earned so far this season.