After Day 1, the USA takes a solid lead in the medal with 14 overall and 6 golds. Australia had the second most medals. Canada and China cashed in late with their first medals in the day’s final event: the men’s 1500m free.
| Golds | Silvers | Bronze | Total | |
| USA | 5 | 4 | 4 | 14 |
| Australia | 3 | 2 | 3 | 8 |
| Japan | 0 | 2 | 1 | 3 |
| Brazil | 1 | 1 | 0 | 2 |
| Canada | 1 | 0 | 0 | 1 |
| South Korea | 0 | 1 | 0 | 1 |
| South Africa | 0 | 0 | 1 | 1 |
| China | 0 | 0 | 1 | 1 |