B time standards
The first published USA Swimming time-standard rung. Achievable for most age-group swimmers within a season or two.
| Event | 10 & Under | 11-12 | 13-14 | 15-16 | 17-18 | Senior |
|---|---|---|---|---|---|---|
| 50 Free LCM | 45.29 | 38.49 | 37.19 | 36.09 | 35.89 | — |
| 100 Free LCM | 1:44.09 | 1:25.59 | 1:21.19 | 1:18.39 | 1:17.69 | — |
| 200 Free LCM | 3:50.99 | 3:06.39 | 2:55.29 | 2:49.19 | 2:47.69 | — |
| 400 Free LCM | 7:48.59 | 6:32.89 | 6:08.09 | 5:55.19 | 5:53.39 | — |
| 800 Free LCM | — | 13:41.59 | 12:45.49 | 12:17.79 | 12:10.29 | — |
| 1500 Free LCM | — | 26:06.89 | 24:28.39 | 23:33.49 | 23:20.89 | — |
| 50 Back LCM | 55.79 | 44.79 | 42.59 | 41.19 | 40.99 | — |
| 100 Back LCM | 2:01.59 | 1:40.59 | 1:29.69 | 1:26.89 | 1:25.89 | — |
| 200 Back LCM | — | 3:28.09 | 3:13.29 | 3:06.79 | 3:05.79 | — |
| 50 Breast LCM | 1:02.19 | 49.79 | 47.79 | 46.19 | 45.59 | — |
| 100 Breast LCM | 2:19.39 | 1:50.39 | 1:42.39 | 1:38.59 | 1:37.49 | — |
| 200 Breast LCM | — | 3:56.79 | 3:40.29 | 3:32.49 | 3:29.89 | — |
| 50 Fly LCM | 54.49 | 41.79 | 39.99 | 38.99 | 38.39 | — |
| 100 Fly LCM | 2:12.79 | 1:38.29 | 1:27.19 | 1:24.29 | 1:23.59 | — |
| 200 Fly LCM | — | 3:31.09 | 3:15.69 | 3:07.79 | 3:04.49 | — |
| 200 IM LCM | 4:15.69 | 3:30.59 | 3:17.19 | 3:11.19 | 3:09.29 | — |
| 400 IM LCM | — | 7:28.89 | 6:57.99 | 6:44.69 | 6:40.29 | — |
Motivational cuts only exist for ages 5–18. The Senior (19 & over) column intentionally has no value — once a swimmer ages out of age-group competition, the relevant standards become the elite cuts (Sectionals → Futures → Nationals).