Results for United States in 400 metres Breaststroke, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1912 Summer Olympics	Mike McDermott	AC h2 r1/3
1920 Summer Olympics	Jack Howell	4
	Mike McDermott	3 h1 r2/3
	Stephen Ruddy	3 h4 r1/3
	Charles Quinby	4 h2 r1/3