The Men's 400 metre freestyle S8 swimming event at the 2004 Summer Paralympics was competed on 24 September. It was won by Christoph Burkard, representing .

1st round

Qualified for final round

Heat 1 24 Sept. 2004, morning session Rank Athlete Time Notes1 4:58.61 2 5:02.77 3 5:07.23 4 5:07.73 5 5:20.56

Heat 2 24 Sept. 2004, morning session Rank Athlete Time Notes1 4:54.97 2 4:55.64 3 5:00.80 4 5:01.72 5 5:14.45 DNS

Final round

24 Sept. 2004, evening session Rank Athlete Time Notes 4:40.30 WR 4:47.66 4:48.88 4 4:55.50 5 4:58.73 6 5:02.13 7 5:04.60 8 5:04.64

References