Nicknamed Timmy and began playing at age 10 in his birthplace of Yuanlin where he stayed throughout his youth to improve his tennis skills. Says, "I was just a kid who liked to play sport very much." Credits his long-time coach, Hsiao-Yung Chang, who has been with him since he was a kid and always pushed him to practiceharder and to motivate him Enjoyed an outstanding junior career, ranking a career-high No. 5 in 2017, and won 3 Grand Slam junior doubles titles with 3 different partners: Australian Open w/Zhao, Wimbledon w/Geller and US Open w/Yibing Wu. Says, "This had a huge impact on mycareer." Considers his volley his best shot and hard courts his favorite surface Wimbledon his his favorite tournament and favorite city is Tokyo His tennis idol is Gael Monfils and favorite athlete is Messi Favorite food is Korean BBQ

No. 2player from Chinese Taipei qualified into his 2nd career Grand Slam tournament at 2023 US Open, dropping only 1 set in 3 matches (d. former Top 20 Paire in 2R). Began season by qualifying at Australian Open and did not drop a set (going 4-0 in tie-breaks). Lost to No. 24 and top Aussie de Minaur in straight sets in 1R. Afterwards broke into Top 200 for 1st time

Achieved a career-high No. 186 ranking on 16 April 2023 after winning his 2nd straight ITF World Tour title in Japan

Has compiled a 10-0record on ITF World Tour in 2023, winning back-to-back titles in Japan without dropping a set (20-0 in sets). Since winning the titles, did not win back-to-back matches on any level until the US Open qualifiying. Went 2-6 in Challenger main draw(0-1 in Challenger qualifying) and lost in 1R qualifying at Roland Garros and Wimbledon

Has a 164-83career record on ITF World Tour with 11 titles, all on hard courts (11-4 in finals)

Has 19-27 career record on ATP Challenger Tour with lone title coming at 2022 Sydney (d. Polmans) without dropping a set. Has 5-10 record in 2023