Women's standards
| Women | Olympic Qualifying Times | Difference | FINA/Olympic Invitation Times | Difference | |
| 50 Freestyle | 2000 | 25.97 | 27.27 | ||
| 2004 | 25.64 | 0.33 | 26.92 | 0.35 | |
| 2008 | 25.43 | 0.21 | 26.32 | 0.60 | |
| 2012 | 25.27 | 0.16 | 26.15 | 0.56 | |
| 100 Freestyle | 2000 | 56.03 | 58.83 | ||
| 2004 | 55.58 | 0.45 | 58.36 | 0.47 | |
| 2008 | 55.24 | 0.34 | 57.17 | 1.19 | |
| 2012 | 54.57 | 0.67 | 56.48 | 0.63 | |
| 200 Freestyle | 2000 | 2:01.02 | 2:07.07 | ||
| 2004 | 2:00.07 | 0.95 | 2:06.07 | 1.00 | |
| 2008 | 1:59.29 | 0.78 | 2:03.47 | 2.60 | |
| 2012 | 1:58.33 | 0.96 | 2:02.47 | 0.79 | |
| 400 Freestyle | 2000 | 4:13.81 | 4:26.50 | ||
| 2004 | 4:11.60 | 2.21 | 4:24.18 | 2.32 | |
| 2008 | 4:11.26 | 0.34 | 4:20.05 | 4.13 | |
| 2012 | 4:09.35 | 1.91 | 4:18.07 | 0.37 | |
| 800 Freestyle | 2000 | 8:40.31 | 9:06.33 | ||
| 2004 | 8:36.94 | 3.37 | 9:02.79 | 3.54 | |
| 2008 | 8:35.98 | 0.96 | 8:54.04 | 8.75 | |
| 2012 | 8:33.84 | 2.14 | 8:51.82 | 0.00 | |
| 100 Backstroke | 2000 | 1:03.25 | 1:06.41 | ||
| 2004 | 1:02.42 | 0.83 | 1:05.54 | 0.87 | |
| 2008 | 1:01.70 | 0.72 | 1:03.86 | 1.68 | |
| 2012 | 1:00.82 | 0.88 | 1:02.95 | 0.75 | |
| 200 Backstroke | 2000 | 2:14.52 | 2:21.25 | ||
| 2004 | 2:13.58 | 0.94 | 2:20.26 | 0.99 | |
| 2008 | 2:12.73 | 0.85 | 2:17.38 | 2.88 | |
| 2012 | 2:10.84 | 1.89 | 2:15.42 | 1.86 | |
| 100 Breaststroke | 2000 | 1:10.21 | 1:13.72 | ||
| 2004 | 1:09.85 | 0.36 | 1:13.34 | 0.38 | |
| 2008 | 1:09.01 | 0.84 | 1:11.43 | 1.91 | |
| 2012 | 1:08.49 | 0.52 | 1:10.89 | 1.45 | |
| 200 Breaststroke | 2000 | 2:29.91 | 2:37.41 | ||
| 2004 | 2:28.21 | 1.70 | 2:35.62 | 1.79 | |
| 2008 | 2:28.21 | 0.00 | 2:33.40 | 2.22 | |
| 2012 | 2:26.89 | 1.32 | 2:32.03 | 1.25 | |
| 100 Butterfly | 2000 | 1:00.71 | 1:03.71 | ||
| 2004 | 59.67 | 1.04 | 1:02.65 | 1.06 | |
| 2008 | 59.35 | 0.32 | 1:01.43 | 1.22 | |
| 2012 | 58.70 | 0.65 | 1:00.75 | 0.56 | |
| 200 Butterfly | 2000 | 2:13.05 | 2:19.70 | ||
| 2004 | 2:11.20 | 1.85 | 2:17.76 | 1.94 | |
| 2008 | 2:10.84 | 0.36 | 2:15.42 | 2.34 | |
| 2012 | 2:08.95 | 1.89 | 2:13.46 | 1.42 | |
| 200 I.M. | 2000 | 2:16.75 | 2:23.59 | ||
| 2004 | 2:15.27 | 1.48 | 2:22.03 | 1.56 | |
| 2008 | 2:15.27 | 0.00 | 2:19.97 | 2.06 | |
| 2012 | 2:13.36 | 1.91 | 2:18.03 | 2.99 | |
| 400 I.M | 2000 | 4:47.55 | 5:01.93 | ||
| 2004 | 4:46.42 | 1.13 | 5:00.74 | 1.19 | |
| 2008 | 4:45.08 | 1.34 | 4:55.06 | 5.68 | |
| 2012 | 4:41.75 | 3.33 | 4:51.75 | 2.47 |
Men's standards
| Men | Olympic Qualifying Times | Difference | FINA/Olympic Invitation Times | Difference | |
| 50 Freestyle | 2000 | 22.75 | 23.89 | ||
| 2004 | 22.51 | 0.24 | 23.64 | 0.25 | |
| 2008 | 22.35 | 0.16 | 23.13 | 0.51 | |
| 2012 | 22.11 | 0.24 | 22.88 | 0.40 | |
| 100 Freestyle | 2000 | 50.09 | 52.59 | ||
| 2004 | 49.66 | 0.43 | 52.14 | 0.45 | |
| 2008 | 49.23 | 0.43 | 50.95 | 1.19 | |
| 2012 | 48.82 | 0.41 | 50.53 | 0.02 | |
| 200 Freestyle | 2000 | 1:49.83 | 1:55.32 | ||
| 2004 | 1:49.60 | 0.23 | 1:55.08 | 0.24 | |
| 2008 | 1:48.72 | 0.88 | 1:52.53 | 2.55 | |
| 2012 | 1:47.82 | 0.90 | 1:51.59 | 1.77 | |
| 400 Freestyle | 2000 | 3:54.10 | 4:04.81 | ||
| 2004 | 3:52.01 | 2.09 | 4:03.61 | 1.20 | |
| 2008 | 3:49.96 | 2.05 | 3:58.01 | 5.60 | |
| 2012 | 3:48.92 | 1.04 | 3:54.13 | 0.00 | |
| 1500 Freestyle | 2000 | 15:26.05 | 16:12.35 | ||
| 2004 | 15:14.43 | 11.62 | 16:05.15 | 7.20 | |
| 2008 | 15:13.16 | 1.27 | 15:45.12 | 20.03 | |
| 2012 | 15:11.83 | 1.33 | 15:43.74 | 0.00 | |
| 100 Backstroke | 2000 | 55.91 | 58.71 | ||
| 2004 | 55.63 | 0.28 | 58.41 | 0.30 | |
| 2008 | 55.14 | 0.49 | 57.07 | 1.34 | |
| 2012 | 54.40 | 0.74 | 56.30 | 0.67 | |
| 200 Backstroke | 2000 | 2:01.21 | 2:07.27 | ||
| 2004 | 2:00.20 | 1.01 | 2:06.21 | 1.06 | |
| 2008 | 1:59.72 | 0.48 | 2:03.91 | 2.30 | |
| 2012 | 1:58.48 | 1.24 | 2:02.63 | 2.38 | |
| 100 Breaststroke | 2000 | 1:02.51 | 1:05.64 | ||
| 2004 | 1:01.92 | 0.59 | 1:05.02 | 0.62 | |
| 2008 | 1:01.57 | 0.35 | 1:03.72 | 1.30 | |
| 2012 | 1:00.79 | 0.78 | 1:02.92 | 0.11 | |
| 200 Breaststroke | 2000 | 2:15.36 | 2:22.13 | ||
| 2004 | 2:14.20 | 1.16 | 2:20.91 | 1.22 | |
| 2008 | 2:13.69 | 0.51 | 2:18.37 | 2.54 | |
| 2012 | 2:11.74 | 1.95 | 2:16.35 | 0.13 | |
| 100 Butterfly | 2000 | 53.90 | 56.60 | ||
| 2004 | 53.49 | 0.41 | 56.16 | 0.44 | |
| 2008 | 52.86 | 0.63 | 54.71 | 1.45 | |
| 2012 | 52.36 | 0.50 | 54.19 | 0.62 | |
| 200 Butterfly | 2000 | 1:59.72 | 2:05.71 | ||
| 2004 | 1:58.63 | 1.09 | 2:04.56 | 1.15 | |
| 2008 | 1:57.67 | 0.96 | 2:01.79 | 2.77 | |
| 2012 | 1:56.86 | 0.81 | 2:00.95 | 0.71 | |
| 200 I.M. | 2000 | 2:03.14 | 2:09.30 | ||
| 2004 | 2:02.54 | 0.60 | 2:08.67 | 0.63 | |
| 2008 | 2:01.40 | 1.14 | 2:05.65 | 3.02 | |
| 2012 | 2:00.17 | 1.23 | 2:04.38 | 1.76 | |
| 400 I.M | 2000 | 4:22.82 | 4:35.86 | ||
| 2004 | 4:20.17 | 2.65 | 4:33.18 | 2.68 | |
| 2008 | 4:18.40 | 1.77 | 4:27.44 | 5.74 | |
| 2012 | 4:16.46 | 1.94 | 4:25.44 | 2.66 |
