Swim time standards by age

All 3,648 USA Swimming age group motivational times — B, BB, A, AA, AAA and AAAA, five age groups, three courses, both sexes. Pick an event to see the ladder, or type a time to find out which cut it makes and how many seconds the next one is away.

What a time standard actually is

A time standard is a single published time that marks a level in an event. USA Swimming publishes six of them — B, BB, A, AA, AAA, AAAA, slowest to fastest — for every recognized age group event, separately for girls and boys and separately for each course. They are called motivational standards for a reason: their job is to give a nine-year-old something to chase that is one realistic step away, rather than a national record that is not.

They are national, which is the useful part. A BB time in the 11-12 100 freestyle means the same thing in Ohio as it does in Oregon, so a swimmer moving clubs carries the label with them. What a standard is not is a qualification. Meets, LSCs and championships publish their own qualifying times, and a meet is free to use an A cut, something in between, or no cut at all.

How far apart the cuts are

This is the question the published table does not answer directly, and it is the one that matters when you are looking at a cut and wondering whether it is a season away or a year. We measured it across all 3,648 published times. In the 13-14, 15-16 and 17-18 groups the ladder is strikingly regular — the gaps below are the median drop, with the 5th and 95th percentiles across 396 event-and-sex combinations in brackets:

So the ladder is not evenly spaced: the two rungs below A are each about 7 % of your current time, and every rung above A is about 4.2 to 4.6 %. In practice that means the climb from B to A is the biggest single jump in the whole table — two 7 % drops back to back — and it is also the stretch where most swimmers spend the longest. On a 1:20 100 freestyle, 7 % is five and a half seconds; on a 5:30 500, it is twenty-three.

The 10 & under table is different, and deliberately so. There the B cut sits a median 26 % above the A cut rather than 17 %, and the spread between events is much wider (24 % to 35 %). Young swimmers improve in large, uneven steps, and a ladder with narrow rungs would have them skipping three at a time.

Reading the table without misreading it

Three things are easy to get wrong, and all three come up constantly:

• The course changes everything. A 100 freestyle in a 25-yard pool, a 25-metre pool and a 50-metre pool are three different races with three different sets of cuts, and the yards time is the fastest of the three because the distance is shorter and the walls are more frequent. Comparing a yards time against a metres standard is the single most common mistake. If you need to move a time between pools, the course converter does it and shows both methods; the reasoning behind the gap is in short course vs long course.
• The age is not always the age today. USA Swimming’s rulebook sets the age determining date as 31 December of the year of competition for short course metres and long course metres, and as the last day of the meet for short course yards. A swimmer who turns 13 in November is therefore in the 13-14 group for every metres meet that year, including the ones in March.
• Relay standards are team times. The relay rows are the time for all four swimmers combined, not a target for one leg. They are in the table because USA Swimming publishes them; they are marked as relays in the selector above.

What to do with the number once you have it

A cut tells you the destination. It does not tell you the route, and chasing it by racing more often is the usual wrong turn. The gap the tool prints — so many seconds, so many per cent — is most useful as a training target rather than a racing one.

A 4 % drop in a 100 is roughly the improvement you would expect from a season of consistent threshold work in a swimmer who is training regularly but not yet training well. That is what the CSS calculator is for: it turns two time trials into a threshold pace and five training zones, so the sets have a number behind them instead of an effort description. From there the send-off calculator turns the pace into the actual clock intervals, and the workout generator writes whole sessions around it.

If the gap is in a sprint event, the arithmetic is less forgiving — 4 % of a 26-second 50 is a second, and a second in a 50 almost never comes from fitness. It comes from the start, the turn and the first stroke off the wall. The 100 freestyle guide covers where those seconds actually sit, and the flip turn guide covers the one most swimmers give away for free.

When a swimmer is nowhere near a B cut

This is the ordinary case and it deserves saying plainly, because a table of cuts can make it look otherwise. The motivational standards describe swimmers who race for a USA Swimming club. Most people in a pool are not that, and a time slower than every cut on the page is not a result — it is just a time that this particular table was never built to describe.

For adults especially the standards are the wrong yardstick twice over: they stop at 18, and they are drawn from year-round competitive swimmers. The masters age groups guide is the comparison that actually applies past 18, the average 100 m time guide works from published data on ordinary swimmers rather than racers, and for a swim scored on one scale across every event there is the World Aquatics points calculator.

Which version of the table this is

The times here come from the age group motivational standards PDF linked from USA Swimming’s time standards page. The document heads itself USA Swimming 2024-2028 Motivational Standards and carries the timestamp 10 October 2025 — the revision that added the 50 backstroke, 50 breaststroke and 50 butterfly for the older age groups, matching the recognized event list in the 2026 rulebook. Standards are reset once per Olympic quad, so this set is current until the next one is published; if a club hands you a sheet with different numbers, check its date before assuming either is wrong.

One oddity worth flagging, because it looks like an error and is not: in the girls’ long course relays the 15-16 cuts are a fraction slower than the 13-14 cuts — 2:36.49 against 2:35.59 for the B standard in the 200 free relay. That is what the published table says. Relay standards are drawn from historical performance, and the older group does not always come out faster.

How these numbers were checked

Every value on this page was read out of the official PDF twice, using two different text-extraction algorithms, and the two readings were compared as a multiset: all 3,648 times match exactly, so nothing was dropped, duplicated or invented. The result then went through three structural checks — that every ladder runs monotonically from B to AAAA (3,040 comparisons, no exceptions), that each event sits in a sane ratio to its half-distance event, and that no event gets slower with age apart from the girls’ long course relays noted above. The list of events matches the recognized age group events in the 2026 rulebook.

What we have not done is reverse-engineer the formula USA Swimming uses to generate the cuts. The percentages above are measurements of the published table, not a rule we recovered: the regularity is clear in the 13-18 groups and much looser below them, and the federation does not publish its method alongside the times. Where a number here is a measurement rather than a published figure, it says so.

SwimFast is an independent publication. We are not a swim school, a coaching service or a governing body, and nothing here is medical advice. Training paces and test protocols are cited from the published research or federation documents linked on each page. Never swim alone, never attempt breath-hold work without supervision, and check with a doctor before starting a new training programme.