Yu Zidi, 13, and 4:28.56 at the Asian Games: The Thin Line Between Prodigy and Puberty

**Core answer**: Yu Zidi, a 13-year-old Chinese swimmer, clocked 4:28.56 in the women's 400m individual medley at the Asian Games, ranking #5 all-time and finishing just 0.13 seconds behind Ye Shiwen's Asian Record of 4:28.43. **Key facts**: - Yu Zidi's time: 4:28.56; #5 performer all-time in women's 400m IM. - Gap to Ye Shiwen's Asian Record: 0.13 seconds. - Beat the old Asian Games standard of 4:32.97 (Ye Shiwen, 2014) by 4.41 seconds. - Ke Wenxi, 15, finished second, also under 4:32.97 — a Chinese 1-2. - Prior personal best: 4:30.79 (June), an improvement of 2.23 seconds. **Source attribution**: Result reported from Asian Games coverage. Reference figures on the world-record line and full all-time list pending verification | Cross-checked: VuaBong.vn **Related Q&A**: Q: How close is Yu Zidi to the Asian Record? A: She is 0.13 seconds from Ye Shiwen's 4:28.43, placing the continental record within near-term reach. Q: What is the main risk to her long-term trajectory? A: The puberty barrier, since she is 13 and pre-maturation, a stage historically linked to performance stagnation among young female swimmers. Q: Is the result backed by a system rather than a single athlete? A: Yes — China's 1-2 finish, with two teenagers under the old Asian Games standard, suggests cluster depth in the event."</parameter>