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South Dakota Swimming Boys 10 & under - 400 M Free

These rankings show the swimmers' placement within their Local Swimming Committee (LSC).
They are based on the swimmer's personal best, their current age category, and team; and are calculated from all the meets results.
For each swimmer, you can find the swimmer's ranking, their best time, the corresponding time standard, as well as how much faster the swimmer needs to be to reach the next level. The last columns provide information about the event they achieved this personal best.

Swimmer Rankings

Ranking Name Time Age Standard to Next Standard Team Date Meet
1 Gavin Mahrous 5:34.89 9 AAA Min AAAA: 5:20.79 (+14.10s | 4.2%) Sioux Falls Swim Team 06/26/2026 2026 SD SFST Summer Surge Classic
50 Free
37.60
37.60
100 Free
44.30
1:21.90
100 Free
1:21.90
150 Free
43.04
2:04.94
200 Free
42.86
2:47.80
100 Free
1:25.90
250 Free
42.44
3:30.24
300 Free
41.73
4:11.97
100 Free
1:24.17
350 Free
42.02
4:53.99
400 Free
40.90
5:34.89
100 Free
1:22.92
2 Quentyn Boerboom 5:59.94 10 A Min AA: 5:51.39 (+8.55s | 2.4%) Southwest Swim Club 06/19/2026 2026 SD Aberdeen Summer High Point Swim Meet
50 Free
40.09
40.09
100 Free
45.26
1:25.35
100 Free
1:25.35
150 Free
26.67
1:52.02
250 Free
20.65
2:12.67
300 Free
2:17.85
4:30.52
100 Free
2:38.50
350 Free
46.08
5:16.60
400 Free
43.34
5:59.94
100 Free
1:29.42
3 Nolan Hunter 6:10.20 10 BB Min A: 6:06.59 (+3.61s | 1.0%) Rushmore Swim Team 07/24/2026 2026 SD Long Course State Championship
50 Free
39.57
39.57
100 Free
44.86
1:24.43
100 Free
1:24.43
150 Free
47.46
2:11.89
200 Free
48.07
2:59.96
100 Free
1:35.53
250 Free
48.96
3:48.92
300 Free
47.00
4:35.92
100 Free
1:35.96
350 Free
48.24
5:24.16
400 Free
46.04
6:10.20
100 Free
1:34.28
4 Bentley Frost 6:14.65 10 BB Min A: 6:06.59 (+8.06s | 2.2%) Pierre Swim Team 06/27/2026 2026 SD Summer Starter
50 Free
41.45
41.45
100 Free
47.53
1:28.98
100 Free
1:28.98
150 Free
48.31
2:17.29
200 Free
48.88
3:06.17
100 Free
1:37.19
250 Free
48.55
3:54.72
300 Free
49.25
4:43.97
100 Free
1:37.80
350 Free
47.17
5:31.14
400 Free
43.51
6:14.65
100 Free
1:30.68
5 Finn Reimers 6:18.74 10 BB Min A: 6:06.59 (+12.15s | 3.2%) Pierre Swim Team 07/24/2026 2026 SD Long Course State Championship
50 Free
44.23
44.23
100 Free
49.45
1:33.68
100 Free
1:33.68
150 Free
49.19
2:22.87
200 Free
49.28
3:12.15
100 Free
1:38.47
250 Free
49.22
4:01.37
300 Free
47.33
4:48.70
100 Free
1:36.55
350 Free
48.06
5:36.76
400 Free
41.98
6:18.74
100 Free
1:30.04
6 Ashton VanKeulen 6:30.82 10 BB Min A: 6:06.59 (+24.23s | 6.2%) Sioux Falls Swim Team 06/26/2026 2026 SD SFST Summer Surge Classic
50 Free
44.18
44.18
100 Free
50.60
1:34.78
100 Free
1:34.78
150 Free
50.85
2:25.63
200 Free
50.87
3:16.50
100 Free
1:41.72
250 Free
51.99
4:08.49
300 Free
49.29
4:57.78
100 Free
1:41.28
350 Free
47.90
5:45.68
400 Free
45.14
6:30.82
100 Free
1:33.04
7 Marcus Pass 6:44.88 10 BB Min A: 6:06.59 (+38.29s | 9.5%) Sioux Falls Swim Team 06/26/2026 2026 SD SFST Summer Surge Classic
50 Free
42.30
42.30
100 Free
50.02
1:32.32
100 Free
1:32.32
150 Free
51.61
2:23.93
200 Free
52.23
3:16.16
100 Free
1:43.84
250 Free
52.74
4:08.90
300 Free
53.32
5:02.22
100 Free
1:46.06
350 Free
52.53
5:54.75
400 Free
50.13
6:44.88
100 Free
1:42.66
8 Hudson Rausch 6:46.31 9 BB Min A: 6:06.59 (+39.72s | 9.8%) Brookings Swim Club 07/24/2026 2026 SD Long Course State Championship
50 Free
42.95
42.95
100 Free
50.97
1:33.92
100 Free
1:33.92
150 Free
52.12
2:26.04
200 Free
53.21
3:19.25
100 Free
1:45.33
250 Free
52.92
4:12.17
300 Free
51.98
5:04.15
100 Free
1:44.90
350 Free
52.95
5:57.10
400 Free
49.21
6:46.31
100 Free
1:42.16
9 Adam Oorlog 6:52.07 10 BB Min A: 6:06.59 (+45.48s | 11.0%) Brookings Swim Club 07/24/2026 2026 SD Long Course State Championship
50 Free
47.53
47.53
100 Free
51.90
1:39.43
100 Free
1:39.43
150 Free
54.66
2:34.09
200 Free
52.63
3:26.72
100 Free
1:47.29
250 Free
53.32
4:20.04
300 Free
51.84
5:11.88
100 Free
1:45.16
350 Free
52.96
6:04.84
400 Free
47.23
6:52.07
100 Free
1:40.19
10 Owen Hoots 6:53.63 9 B Min BB: 6:52.49 (+1.14s | 0.3%) Watertown Area Swim Club 06/26/2026 2026 SD SFST Summer Surge Classic
50 Free
47.98
47.98
100 Free
52.09
1:40.07
100 Free
1:40.07
150 Free
55.18
2:35.25
200 Free
52.90
3:28.15
100 Free
1:48.08
250 Free
55.76
4:23.91
300 Free
51.23
5:15.14
100 Free
1:46.99
350 Free
52.58
6:07.72
400 Free
45.91
6:53.63
100 Free
1:38.49
11 John Umiker 7:05.63 10 B Min BB: 6:52.49 (+13.14s | 3.1%) Pierre Swim Team 06/12/2026 2026 RST Coach Beth Rushmore Classic
50 Free
46.10
46.10
100 Free
54.71
1:40.81
100 Free
1:40.81
150 Free
56.00
2:36.81
200 Free
56.18
3:32.99
100 Free
1:52.18
250 Free
34.81
4:07.80
300 Free
1:15.88
5:23.68
100 Free
1:50.69
350 Free
33.22
5:56.90
400 Free
1:08.73
7:05.63
100 Free
1:41.95
12 Dylan Myers 7:13.93 10 B Min BB: 6:52.49 (+21.44s | 4.9%) Black Hills Gold Swimming 07/24/2026 2026 SD Long Course State Championship
50 Free
44.67
44.67
100 Free
54.42
1:39.09
100 Free
1:39.09
150 Free
56.89
2:35.98
200 Free
57.26
3:33.24
100 Free
1:54.15
250 Free
57.76
4:31.00
300 Free
56.37
5:27.37
100 Free
1:54.13
350 Free
55.28
6:22.65
400 Free
51.28
7:13.93
100 Free
1:46.56
13 Jonathan Fosheim 7:18.07 10 B Min BB: 6:52.49 (+25.58s | 5.8%) Webster Swim Team 07/24/2026 2026 SD Long Course State Championship
50 Free
47.34
47.34
100 Free
57.19
1:44.53
100 Free
1:44.53
150 Free
57.90
2:42.43
200 Free
58.75
3:41.18
100 Free
1:56.65
250 Free
57.39
4:38.57
300 Free
56.08
5:34.65
100 Free
1:53.47
350 Free
54.77
6:29.42
400 Free
48.65
7:18.07
100 Free
1:43.42
14 Briggs North 7:18.82 10 B Min BB: 6:52.49 (+26.33s | 6.0%) Aberdeen Swim Club 07/18/2025 2025 SD State Long Course Meet
50 Free
47.17
47.17
100 Free
55.21
1:42.38
100 Free
1:42.38
150 Free
58.05
2:40.43
200 Free
57.47
3:37.90
100 Free
1:55.52
250 Free
58.07
4:35.97
300 Free
56.36
5:32.33
100 Free
1:54.43
350 Free
55.32
6:27.65
400 Free
51.17
7:18.82
100 Free
1:46.49
15 Lucas Kroon 7:21.10 10 B Min BB: 6:52.49 (+28.61s | 6.5%) Pierre Swim Team 07/17/2026 2026 SD Long Course Rising Stars Swim Meet
50 Free
49.01
49.01
100 Free
55.46
1:44.47
100 Free
1:44.47
150 Free
54.40
2:38.87
200 Free
57.27
3:36.14
100 Free
1:51.67
250 Free
56.51
4:32.65
300 Free
56.80
5:29.45
100 Free
1:53.31
350 Free
56.92
6:26.37
400 Free
54.73
7:21.10
100 Free
1:51.65
16 Bennett Kessler 8:26.93 10 B: 7:38.29 (+48.64s | 9.6%) Brookings Swim Club 05/30/2026 2026 SD YST Summer Invite
50 Free
54.19
54.19
100 Free
1:03.95
1:58.14
100 Free
1:58.14
150 Free
3:18.44
5:16.58
250 Free
2:04.90
7:21.48
400 Free
1:05.45
8:26.93
100 Free
1:05.45

Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.