Tan Huong Leong ranks #2 among Malaysian men marathoners for the 2026 season, on a net time of 2:31:44 set at Sanlam Cape Town Marathon 2026 on 24 May 2026. On the all-time Malaysian marathon board compiled by BiiB, Tan Huong Leong sits at #1 with an official gun time of 2:22:34 from Fukuoka Marathon 2023. Half marathon 1:08:19 (#2 all-time, Ageo City Half Marathon 2018).