The women's 400 metre individual medley event at the 2026 Commonwealth Games was held on 27 July at the Tollcross International Swimming Centre.

Schedule The schedule is as follows:

All times are British Summer Time (UTC+1) Date Time Round Monday 27 July 2026 10:30 Heats 19:00 Final

Results Heats The heats will be held on the morning of 27 July 2026. + Heat results Rank Heat Lane Swimmer Nation Time Notes 1 1 4 4:39.13 Q 2 2 4 4:40.61 Q 3 1 5 4:41.81 Q 4 2 5 4:42.75 Q 5 2 3 4:45.19 Q 6 1 3 4:51.45 Q 7 2 6 4:53.45 Q 8 1 6 5:05.83 Q 9 1 2 5:09.85 R 10 2 2 5:10.32 R 11 1 7 6:03.71 2 7 DNS

Final The final took place during of the evening of 27 July 2026. + Final results Rank Lane Swimmer Nation Time Notes 5 4:31.19 4 4:33.70 6 4:37.12 4 2 4:39.12 5 3 4:42.08 6 7 4:45.43 7 1 4:51.19 8 8 5:04.73

References