What's a good long course 400 individual medley time for a 16-year-old boy?

For 16-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 — 16-year-old boys (LCM)

Average
5:15.35
50th percentile
Top 10%
4:46.24
faster than 90%
Top 1%
4:30.63
elite

The average (median) 16-year-old boy swims the 400 individual medley around 5:15.35 (LCM). Cracking the top 10% takes about 4:46.24, and the fastest 1% go under 4:30.63. Based on 3,431 swimmers with a recorded time.

How does your swimmer's time rank?

Enter a 400 IM (LCM) time to see the national percentile for 16 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 boys6:18.605:46.13
12-year-old boys6:02.645:31.20
13-year-old boys5:47.035:15.36
14-year-old boys5:32.845:02.91
15-year-old boys5:22.754:53.68
16-year-old boys5:15.354:46.24
17-year-old boys5:09.174:42.55
18-year-old boys5:01.164:35.95

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 16-year-old boy?

A typical (median) 16-year-old boy swims the 400 individual medley around 5:15.35 (LCM). A good time is faster than that — cracking the top 10% takes about 4:46.24. For reference, the USA Swimming B motivational standard is 6:14.69 and AAAA is 4:41.09. Based on 3,431 swimmers with a recorded time.

What's a fast 400 individual medley time for a 16-year-old boy?

The fastest 1% of 16-year-old boys go under 4:30.63 in the 400 individual medley (LCM) — around the AAAA motivational standard of 4:41.09. The top 10% are under 4:46.24.

What's the average 400 individual medley time for a 16-year-old boy?

The median 16-year-old boy swims about 5:15.35 in the 400 individual medley (LCM), based on 3,431 swimmers with a recorded time.

What are the USA Swimming motivational standards for the 16-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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