Usa Swimming 2024 Time Standards Usa. Time standards range from b, bb, a, aa, aaa, and aaaa in single age from 10 to 18. Swagr 2022 time standards (updated 10/19/2021) sn sr + time standards (updated 4/1/19) sn jr+ time standards (established 3/15/17 by bod) western zone (wz) time standards.

Standards are updated as they are published by usa swimming, the central zone, and illinois swimming. Usa swimming offers a variety of ways to see how your swim times compare to others including times search, meet results and time standards.