What's a good long course 400 individual medley time for a 15-year-old boy?

For 15-year-old boys (LCM), USA Swimming motivational times run from a B standard of 6:14.69 to a AAAA standard of 4:41.09. Enter a time below to see exactly where it ranks nationally and which cut it's closest to.

National 400 IM times — 15-year-old boys (LCM)

Average
5:21.82
50th percentile
Top 10%
4:52.86
faster than 90%
Top 1%
4:37.00
elite

The average (median) 15-year-old boy swims the 400 individual medley around 5:21.82 (LCM). Cracking the top 10% takes about 4:52.86, and the fastest 1% go under 4:37.00. Based on 4,264 swimmers with a recorded time.

How does your swimmer's time rank?

Enter a 400 IM (LCM) time to see the national percentile for 15 boys and the nearest USA Swimming cut.

400 IM motivational standards — 15-16 boys (LCM)

StandardTime
B6:14.69
BB5:47.99
A5:21.19
AA5:07.79
AAA4:54.39
AAAA4:41.09

USA Swimming National Age Group Motivational Times. A time faster than a level's cut counts as that standard achieved.

Average 400 IM time by age — boys (LCM)

AgeAverageTop 10%
11-year-old boys6:18.085:45.40
12-year-old boys6:01.455:29.37
13-year-old boys5:46.255:14.63
14-year-old boys5:31.885:01.86
15-year-old boys5:21.824:52.86
16-year-old boys5:13.994:45.16
17-year-old boys5:07.394:40.47
18-year-old boys4:59.174:33.80

Average = the median recorded 400 IM time (LCM) for that age. Top 10% = faster than 90% of boys the same age.

Frequently asked questions

What's a good 400 individual medley time for a 15-year-old boy?

A typical (median) 15-year-old boy swims the 400 individual medley around 5:21.82 (LCM). A good time is faster than that — cracking the top 10% takes about 4:52.86. For reference, the USA Swimming B motivational standard is 6:14.69 and AAAA is 4:41.09. Based on 4,264 swimmers with a recorded time.

What's a fast 400 individual medley time for a 15-year-old boy?

The fastest 1% of 15-year-old boys go under 4:37.00 in the 400 individual medley (LCM) — around the AAAA motivational standard of 4:41.09. The top 10% are under 4:52.86.

What's the average 400 individual medley time for a 15-year-old boy?

The median 15-year-old boy swims about 5:21.82 in the 400 individual medley (LCM), based on 4,264 swimmers with a recorded time.

What are the USA Swimming motivational standards for the 15-and-up 400 IM?

For 15-16 boys (LCM), the 400 IM motivational cuts are B 6:14.69, BB 5:47.99, A 5:21.19, AA 5:07.79, AAA 4:54.39, AAAA 4:41.09.

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