At the 1904 Summer Olympics, nine swimming events were contested.
50 yds Freestyle, Men
Pos Athlete 1 Zoltán Halmay[?] (HUN) 2 Scott Leary[?] (USA) 3 Charles Daniels[?] (USA) 100 yds Freestyle, Men
Pos Athlete 1 Zoltán Halmay[?] (HUN) 2 Charles Daniels[?] (USA) 3 Scott Leary[?] (USA) 220 yds Freestyle
Pos Athlete 1 Charles Daniels[?] (USA) 2 Francis Gailey[?] (USA) 3 Emil Rausch[?] (GER) 440 yds Freestyle, Men
Pos Athlete 1 Charles Daniels[?] (USA) 2 Francis Gailey[?] (USA) 3 Otto Wahle[?] (AUT) 880 yds Freestyle, Men
Pos Athlete 1 Emil Rausch[?] (GER) 2 Francis Gailey[?] (USA) 3 Géza Kiss[?] (HUN) 1 mile Free-style, Men
Pos Athlete 1 Emil Rausch[?] (GER) 2 Géza Kiss[?] (HUN) 3 Francis Gailey[?] (USA) 100 yds Backstroke, Men
Pos Athlete 1 Walter Brack[?] (GER) 2 Georg Hoffmann[?] (GER) 3 Georg Zacharias[?] (GER) 440 yds Breaststroke, Men
Pos Athlete 1 Georg Zacharias[?] (GER) 2 Walter Brack[?] (GER) 3 Jamison Handy[?] (USA) 4 x 50 yds Freestyle Relay, Men
Pos Athlete 1 New York Athletic Club 1 (USA)
Joseph Ruddy[?], Leo Goodwin[?], Louis Handley[?], Charles Daniels[?] 2 Chicago Athletic Association (USA)
David Hammond[?], William Tuttle[?], Hugo Goetz[?], Raymond Thorne[?] 3 Missouri Athletic Club (USA)
Amedee Reyburn[?], Gwynne Evans[?], Marquard Schwarz[?], William Orthwein[?]