2025 U.S. OPEN
- December 3-6, 2025
- Austin, Texas
- Lee and Joe Jamail Texas Swimming Center
- Prelims: 10 a.m. EST
- Finals: 7 p.m EST (Day 1: 5 p.m. EST)
- LCM (50 meters)
- Meet Central
- Psych Sheets
- Live Results
- Live Recaps
MEN’S 400 IM – Finals
- World Record: 4:02.50, Leon Marchand (FRA) – 2023
- U.S. Open Record: 4:05.25, Michael Phelps (USA) – 2008
U.S. Open Meet Record: 4:10.09, Chase Kalisz (USA) – 2022Texas Pool Record: 4:08.46, Carson Foster
Top 8 Finishers
- Carson Foster (UN-MR) – 4:07.02 CR
- Luka Mijatovic (PLS) – 4:15.91
- Baylor Nelson (TEX) – 4:15.91
- Cooper Lucas (TEX) – 4:16.60
- Tommy Bried (UOFL) – 4:18.65
- Tristan Jankovics (OSU) – 4:19.02
- Bobby Finke (SPA-FL) – 4:19.02
- Gregg Enoch (UOFL) – 4:24.80
Carson Foster swam to a new US Open Meet record posting a 4:07.02 in the men’s 400 IM. That also marked his 2nd fastest swim ever, only behind his best time of a 4:06.56 that he swam to win silver at the 2022 and 2023 World Championships .
Foster broke the previous US Open meet record of a 4:10.09 that Chase Kalisz set in 2022.
Split Comparison
| Distance (m) | Foster | 2025 US Open | Kalisz | 2022 US Open | Foster | 2022 Worlds |
| 50 | 25.76 | 25.76 | 26.31 | 26.31 | 25.86 | 25.86 |
| 100 | 29.47 | 55.23 | 30.24 | 56.55 | 29.56 | 55.42 |
| 150 | 32.01 | 1:27.24 | 32.42 | 1:28.97 | 31.78 | 1:27.20 |
| 200 | 31.12 | 1:58.36 | 31.87 | 2:00.84 | 30.98 | 1:58.18 |
| 250 | 35.32 | 2:33.68 | 34.66 | 2:35.50 | 34.66 | 2:32.84 |
| 300 | 35.62 | 3:09.30 | 35.19 | 3:10.69 | 35.66 | 3:08.50 |
| 350 | 29.99 | 3:39.29 | 30.69 | 3:41.38 | 29.58 | 3:38.08 |
| 400 | 27.73 | 4:07.02 | 28.71 | 4:10.09 | 28.48 | 4:06.56 |
Compared to Kalisz, Foster was faster today on the fly, back, and free legs of the race. Kalisz was faster on the breaststroke leg in 2022. Foster was less than half a second off his lifetime best in the 400 IM, with the biggest difference coming on the backstroke leg where he was slower today than three years ago.
Foster notably did not compete in the 400 IM this past summer at the 2025 World Championships as he scratched the event due to an ankle injury that he suffered before finals of the 200 IM. He was the #3 seed heading into the 400 IM at 2025 Worlds and his time from today would have won silver.
Such a crazy turn around for this UT program. Carson was on a team that wasn’t preforming to standards and stuck it out. Happy to see he’s doing well leading into 28’
Should say third fastest. At the time of writing, this article claims it is his second fastest performance.
He went the same time (4:06.56, not 4:06.52 as this article also mistakenly states) twice at both the 2022 and 2023 World Championships.
I can’t imagine the frustration of tying your PB in an event like the LCM 200 Fly, 400 IM, or 800/1500 Free…
Cope. If anything you had more chances to go faster