The Women's 400 metre freestyle event at the 2025 SEA Games took place on 12 December 2025 at the SAT Swimming Pool in Bangkok, Thailand.
Schedule All times are Indochina Standard Time (UTC+07:00) DateTimeEventThursday, 12 December 2025 9:22 Heats 19:22 Final
Records
Results Heats
Rank Heat Lane Swimmer Nationality Time Notes 1 2 4 Gan Ching Hwee 4:20.19 Q 2 2 5 Kamonchanok Kwanmuang 4:25.31 Q 3 2 3 Maria Nedelko 4:26.23 Q 4 1 4 Võ Thị Mỹ Tiên 4:28.03 Q 4 1 5 Nguyễn Khả Nhi 4:29.86 Q 6 1 3 Izzy Dwifaiva Hefrisyanthi 4:30.80 Q 7 2 2 Kyla Louise Bulaga 4:38.93 Q 8 1 6 Tan Rui Nee 4:41.07 Q 9 2 6 Kelly Teo Yao 4:41.75 R 10 1 2 Kaylonie Amphonesuh 5:10.48 R, NR
Final
Rank Lane Swimmer Nationality Time Notes 4 Gan Ching Hwee 4:11.88 5 Kamonchanok Kwanmuang 4:13.56 6 Võ Thị Mỹ Tiên 4:17.39 4 2 Nguyễn Khả Nhi 4:19.89 5 3 Maria Nedelko 4:22.74 6 7 Izzy Dwifaiva Hefrisyanthi 4:33.21 7 8 Tan Rui Nee 4:34.26 8 1 Kyla Louise Bulaga 4:38.96
References