Tan Chee Hwee ranks #6 among Malaysian men marathoners for the 2026 season, on a net time of 2:39:48 set at Chang’an Automobile Chongqing Marathon 2026 on 18 January 2026. On the all-time Malaysian marathon board compiled by BiiB, Tan Chee Hwee sits at #23 with an official gun time of 2:40:14 from Seoul Marathon 2025. Half marathon 1:18:09 (#50 all-time, Langkawi International Half Marathon 2025) and 10K 35:18 (#27 all-time, Kota Bharu Half Marathon 2025).