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 | 43.89 | 37.39 | 34.29 | 32.89 | 31.89 | — |
| 100 Free LCM | 1:40.99 | 1:22.09 | 1:15.09 | 1:11.79 | 1:09.89 | — |
| 200 Free LCM | 3:36.69 | 2:59.19 | 2:43.99 | 2:36.59 | 2:32.89 | — |
| 400 Free LCM | 7:38.29 | 6:21.09 | 5:48.39 | 5:34.09 | 5:26.49 | — |
| 800 Free LCM | — | 13:20.19 | 12:00.59 | 11:33.99 | 11:17.89 | — |
| 1500 Free LCM | — | 25:51.79 | 23:04.59 | 22:08.29 | 21:45.79 | — |
| 50 Back LCM | 55.39 | 44.49 | 39.49 | 37.79 | 36.79 | — |
| 100 Back LCM | 1:56.69 | 1:37.19 | 1:23.69 | 1:19.39 | 1:17.49 | — |
| 200 Back LCM | — | 3:22.99 | 3:01.79 | 2:52.29 | 2:49.19 | — |
| 50 Breast LCM | 1:00.89 | 49.79 | 43.99 | 41.79 | 40.29 | — |
| 100 Breast LCM | 2:12.89 | 1:47.79 | 1:33.79 | 1:29.49 | 1:26.69 | — |
| 200 Breast LCM | — | 3:47.89 | 3:22.79 | 3:14.49 | 3:09.19 | — |
| 50 Fly LCM | 52.29 | 41.99 | 37.29 | 35.69 | 34.59 | — |
| 100 Fly LCM | 2:09.49 | 1:35.09 | 1:20.29 | 1:16.79 | 1:14.59 | — |
| 200 Fly LCM | — | 3:24.79 | 2:59.69 | 2:51.69 | 2:46.99 | — |
| 200 IM LCM | 4:09.49 | 3:24.39 | 3:02.89 | 2:56.19 | 2:51.89 | — |
| 400 IM LCM | — | 7:17.89 | 6:30.69 | 6:14.69 | 6:07.59 | — |
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).