What's a good 400 individual medley time for a 18-year-old boy?

For 18-year-old boys (SCY), USA Swimming motivational times run from a B standard of 5:17.39 to a AAAA standard of 3:57.99. Enter a time below to see exactly where it ranks nationally and which cut it's closest to.

National 400 IM times — 18-year-old boys (SCY)

Median
4:19.94
50th percentile
Top 10%
3:58.38
faster than 90%
Top 1%
3:47.93
elite

A typical (median) 18-year-old boy swims the 400 individual medley around 4:19.94 (SCY). Cracking the top 10% takes about 3:58.38, and the fastest 1% go under 3:47.93. Based on 1,818 swimmers with a recorded time.

How does your swimmer's time rank?

Enter a 400 IM (SCY) time to see the national percentile for 18 boys and the nearest USA Swimming cut.

400 IM motivational standards — 17-18 boys (SCY)

StandardTime
B5:17.39
BB4:54.69
A4:31.99
AA4:20.69
AAA4:09.39
AAAA3:57.99

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

Frequently asked questions

What's a good 400 individual medley time for a 18-year-old boy?

A typical (median) 18-year-old boy swims the 400 individual medley around 4:19.94 (SCY). A good time is faster than that — cracking the top 10% takes about 3:58.38. For reference, the USA Swimming B motivational standard is 5:17.39 and AAAA is 3:57.99. Based on 1,818 swimmers with a recorded time.

What's a fast 400 individual medley time for a 18-year-old boy?

The fastest 1% of 18-year-old boys go under 3:47.93 in the 400 individual medley (SCY) — around the AAAA motivational standard of 3:57.99. The top 10% are under 3:58.38.

What's the average 400 individual medley time for a 18-year-old boy?

The median 18-year-old boy swims about 4:19.94 in the 400 individual medley (SCY), based on 1,818 swimmers with a recorded time.

What are the USA Swimming motivational standards for the 18-and-up 400 IM?

For 17-18 boys (SCY), the 400 IM motivational cuts are B 5:17.39, BB 4:54.69, A 4:31.99, AA 4:20.69, AAA 4:09.39, AAAA 3:57.99.

Other ages: 17-year-old boys
Other events: 50 Free100 Free200 Free500 Free1000 Free1650 Free
See the full 17-18 boys standards →
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