The swimming competition during the 2003 Summer Universiade, also known as the XXII Summer Universiade, took place in Daegu, South Korea from August 24 till August 30, 2003.[1]
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| 50 m freestyle | 22.59 | 22.77 | 22.81 | ||||
| 100 m freestyle | 49.36 | 49.94 | 50.02 | ||||
| 200 m freestyle | 1:49.82 | 1:50.10 | 1:50.51 | ||||
| 400 m freestyle | 3:52.27 | 3:52.73 | 3:53.26 | ||||
| 800 m freestyle | 7:54.18 | 7:57.21 | 7:59.22 | ||||
| 1500 m freestyle | 15:12.13 | 15:14.46 | 15:19.44 | ||||
| 50 m backstroke | 25.80 | 25.82 | 25.88 | ||||
| 100 m backstroke | 54.99 | 55.35 | 55.70 | ||||
| 200 m backstroke | 1:59.17 | 2:01.60 | 2:01.63 | ||||
| 50 m breaststroke | 27.92 | 27.94 | 28.05 | ||||
| 100 m breaststroke | 1:00.71 | 1:01.28 | 1:01.69 | ||||
| 200 m breaststroke | 2:13.78 | 2:14.00 | 2:15.52 | ||||
| 50 m butterfly | 23.93 | 24.04 | 24.11 | ||||
| 100 m butterfly | 51.99 | 52.94 | 53.42 | ||||
| 200 m butterfly | 1:57.44 | 1:58.74 | 1:59.21 | ||||
| 200 m individual medley | 2:00.59 | 2:01.57 | 2:03.06 | ||||
| 400 m individual medley | 4:17.23 | 4:19.82 | 4:20.52 | ||||
| 4×100 m freestyle relay | 3:22.09 | 3:22.37 | 3:22.80 | ||||
| 4×200 m freestyle relay | 7:19.63 | 7:20.67 | 7:20.92 | ||||
| 4×100 m medley relay | 3:47.46 | 3:39.05 | 3:40.18 |
| 50 m freestyle | 25.57 | 25.89 | 25.93 | ||||
| 100 m freestyle | 55.51 | 55.88 | 56.11 | ||||
| 200 m freestyle | 1:59.03 NR | 1:59.66 | 2:00.76 | ||||
| 400 m freestyle | 4:11.23 | 4:11.94 | 4:12.52 | ||||
| 800 m freestyle | 8:33.84 | 8:35.70 | 8:36.66 | ||||
| 1500 m freestyle | 16:14.70 | 16:19.32 | 16:24.43 | ||||
| 50 m backstroke | 29.04 | 29.27 | 29.43 | ||||
| 100 m backstroke | 1:01.74 | 1:02.18 | 1:02.43 | ||||
| 200 m backstroke | 2:12.17 | 2:13.21 | 2:13.82 | ||||
| 50 m breaststroke | 31.39 | 31.74 | 31.92 | ||||
| 100 m breaststroke | 1:07.45 | 1:08.76 | 1:09.72 | ||||
| 200 m breaststroke | 2:26.25 | 2:26.99 | 2:31.06 | ||||
| 50 m butterfly | 27.56 | 27.75 | 27.76 | ||||
| 100 m butterfly | 1:00.42 | 1:00.59 | 1:00.66 | ||||
| 200 m butterfly | 2:09.52 NR | 2:11.52 | 2:12.59 | ||||
| 200 m individual medley | 2:13.32 | 2:15.86 | 2:17.41 | ||||
| 400 m individual medley | 4:45.01 | 4:48.44 | 4:48.59 | ||||
| 4×100 m freestyle relay | 3:45.50 | 3:45.68 | 3:47.50 | ||||
| 4×200 m freestyle relay | 8:05.86 | 8:08.84 | 8:13.99 | ||||
| 4×100 m medley relay | 4:06.22 | 4:07.63 | 4:08.89 |