1932 - Los Angeles had 6 men's events and 5 women's events, with the Japan men's team dominating the medals with 5 gold, 4 silver, and 2 bronze - that is 11 out of 18 possible medals on the men's side. The only US men's gold was by Buster Crabbe in the 400 meter freestyle. The US women's team fared better, with 4 gold medals, including Eleanor Holm in the 100 meter backstroke.
1936 - The Berlin Games. The Olympic swim program remained the same, 6 men's events and 5 women's events. The Japan men's team only won 3 gold medals, but they were still dominate, taking 11 of the 18 available medals. The USA's Jack Medica won the 400 meter freestyle, and Adolph Kiefer took the 100 meter backstroke gold. The Netherlands women's team was tough to beat, taking 4 out of 5 gold medals.
1940 - No Olympic Games due to wars.
1944 - No Olympic Games due to wars.