HONG KONG - MEN - 400 M - NATIONAL RECORD PROGRESSION

46.91 - 3. Chan Chun Ho/03 - 13/06/2026 - Hong Kong/HKG - Athletics Open Meet
46.98 - 5. Chan Chun Ho/03 - 18/05/2026 - Chongqing/CHN - 04.Belt and Road Inv.
47.09 - 6. Chan Chun Ho/03 - 17/11/2025 - Guanghzhou/CHN - 15.National Games/h2
47.12 - 1. Chan Chun Ho/03 - 01/10/2025 - Hong Kong/HKG - Athletics Open Meet

HONG KONG - MEN - 400 M - NATIONAL INDOOR/SHORT TRACK RECORD PROGRESSION

48.89 - 6. Chan Ka Chun/89 - 19/02/2016 - Doha/QAT - 07.AiC/sf1
49.00 - 5. Chan Ka Chun/89 - 15/02/2014 - Hangzhou/CHN - 06.AiC/h3

HONG KONG - MEN - 400 M - NATIONAL U20 RECORD PROGRESSION

47.75 - 4. Yau Nam Huang/08 - 28/05/2026 - Hong Kong/HKG - 22.ASCu20/h2
47.79 - 1. Leung Ki Ho/88 - 02/12/2007 - Hong Kong/HKG