South Dakota Swimming Boys 10 & under - 50 M Breast
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 | 47.49 | 9 | A Min | AA: 45.79 (+1.70s | 3.6%) | Sioux Falls Swim Team | 05/30/2026 | 2026 MN RSC Summer Jam | |
| 2 | Marcus Pass | 47.53 | 9 | A Min | AA: 45.79 (+1.74s | 3.7%) | Sioux Falls Swim Team | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | |
| 3 | Lawson Kroon | 49.45 | 9 | BB Min | A: 47.89 (+1.56s | 3.2%) | Pierre Swim Team | 06/27/2026 | 2026 SD Summer Starter | |
| 4 | Quentyn Boerboom | 51.57 | 10 | BB Min | A: 47.89 (+3.68s | 7.1%) | Southwest Swim Club | 06/19/2026 | 2026 SD Aberdeen Summer High Point Swim Meet | |
| 5 | Lukas Bergman | 52.23 | 9 | BB Min | A: 47.89 (+4.34s | 8.3%) | Rushmore Swim Team | 07/18/2025 | 2025 SD State Long Course Meet | |
| 6 | Ashton VanKeulen | 52.49 | 10 | BB Min | A: 47.89 (+4.60s | 8.8%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 7 | Jackson Bisson | 53.37 | 10 | BB Min | A: 47.89 (+5.48s | 10.3%) | Brookings Swim Club | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | |
| 8 | Lane Hutmacher | 53.41 | 10 | BB Min | A: 47.89 (+5.52s | 10.3%) | Chamberlain Swim Team | 06/12/2026 | 2026 Splash Central Invitational | |
| 9 | Ryker Mahowald | 54.45 | 10 | B Min | BB: 54.39 (+0.06s | 0.1%) | Vermillion Area Swim Team | 06/20/2025 | VAST SPLASH | |
| 10 | Nolan Hunter | 55.56 | 10 | B Min | BB: 54.39 (+1.17s | 2.1%) | Rushmore Swim Team | 06/12/2026 | 2026 RST Coach Beth Rushmore Classic | |
| 11 | John Umiker | 56.73 | 10 | B Min | BB: 54.39 (+2.34s | 4.1%) | Pierre Swim Team | 06/27/2026 | 2026 SD Summer Starter | |
| 12 | Owen King | 56.73 | 10 | B Min | BB: 54.39 (+2.34s | 4.1%) | Rushmore Swim Team | 06/27/2026 | 2026 SD Summer Starter | |
| 13 | Owen Hoots | 56.94 | 9 | B Min | BB: 54.39 (+2.55s | 4.5%) | Watertown Area Swim Club | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 14 | Thomas Fitzgerald | 57.53 | 10 | B Min | BB: 54.39 (+3.14s | 5.5%) | Rushmore Swim Team | 06/12/2026 | 2026 RST Coach Beth Rushmore Classic | |
| 15 | Finn Reimers | 57.67 | 10 | B Min | BB: 54.39 (+3.28s | 5.7%) | Pierre Swim Team | 06/12/2026 | 2026 Splash Central Invitational | |
| 16 | Austin Headley | 57.96 | 10 | B Min | BB: 54.39 (+3.57s | 6.2%) | Sioux Falls Swim Team | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | |
| 17 | Evan Morehouse | 57.98 | 10 | B Min | BB: 54.39 (+3.59s | 6.2%) | Brookings Swim Club | 06/05/2026 | 2026 SD BSC Tropical Summer Splash High Point | |
| 18 | Jordy Walder | 58.85 | 10 | B Min | BB: 54.39 (+4.46s | 7.6%) | Dakota Riptide | 06/12/2026 | 2026 Splash Central Invitational | |
| 19 | Jason Johnston | 59.08 | 9 | B Min | BB: 54.39 (+4.69s | 7.9%) | Aberdeen Swim Club | 05/09/2025 | 2025 SD SFST Ready For Long Course | |
| 20 | Patrick Velgersdyk | 1:00.35 | 10 | B Min | BB: 54.39 (+5.96s | 9.9%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 21 | Bentley Frost | 1:01.79 | 10 | B: 1:00.89 (+0.90s | 1.5%) | Pierre Swim Team | 06/14/2024 | 2024 SD Aberdeen Summer High Point Swim Meet | ||
| 22 | Layton Boots | 1:01.87 | 8 | B: 1:00.89 (+0.98s | 1.6%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | ||
| 23 | Oliver Rasmussen | 1:03.64 | 9 | B: 1:00.89 (+2.75s | 4.3%) | Chamberlain Swim Team | 06/12/2026 | 2026 Splash Central Invitational | ||
| 24 | Bennett Kessler | 1:03.71 | 10 | B: 1:00.89 (+2.82s | 4.4%) | Brookings Swim Club | 06/27/2026 | 2026 SD Summer Starter | ||
| 25 | Reed Williams | 1:03.78 | 9 | B: 1:00.89 (+2.89s | 4.5%) | Black Hills Gold Swimming | 06/27/2026 | 2026 SD Summer Starter | ||
| 26 | Jonathan Fosheim | 1:04.29 | 10 | B: 1:00.89 (+3.40s | 5.3%) | Webster Swim Team | 06/27/2026 | 2026 SD Summer Starter | ||
| 27 | Jasper Williams | 1:06.03 | 8 | B: 1:00.89 (+5.14s | 7.8%) | Pierre Swim Team | 06/27/2026 | 2026 SD Summer Starter | ||
| 28 | Gunnar Syverson | 1:06.03 | 9 | B: 1:00.89 (+5.14s | 7.8%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | ||
| 29 | Jackson Arnett | 1:06.90 | 10 | B: 1:00.89 (+6.01s | 9.0%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | ||
| 30 | Alex Chambers | 1:06.92 | 10 | B: 1:00.89 (+6.03s | 9.0%) | Brookings Swim Club | 06/05/2026 | 2026 SD BSC Tropical Summer Splash High Point | ||
| 31 | Everett Ham | 1:07.40 | 10 | B: 1:00.89 (+6.51s | 9.7%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | ||
| 32 | Kellen Lambrechts | 1:07.49 | 9 | B: 1:00.89 (+6.60s | 9.8%) | Watertown Area Swim Club | 06/19/2026 | 2026 SD Aberdeen Summer High Point Swim Meet | ||
| 33 | Maximus Newton | 1:08.75 | 8 | B: 1:00.89 (+7.86s | 11.4%) | Aberdeen Swim Club | 06/19/2026 | 2026 SD Aberdeen Summer High Point Swim Meet | ||
| 34 | Kase Walker | 1:09.26 | 8 | B: 1:00.89 (+8.37s | 12.1%) | Black Hills Gold Swimming | 06/27/2026 | 2026 SD Summer Starter | ||
| 35 | Ethan Ulmer | 1:10.09 | 10 | B: 1:00.89 (+9.20s | 13.1%) | Black Hills Gold Swimming | 12/21/2024 | DEC 2024 SD Black Hills Gold Pentathlon | ||
| 36 | Owen Smith | 1:10.14 | 10 | B: 1:00.89 (+9.25s | 13.2%) | Sioux Falls Swim Team | 06/05/2026 | 2026 SD BSC Tropical Summer Splash High Point | ||
| 37 | Callen Thompson | 1:10.15 | 8 | B: 1:00.89 (+9.26s | 13.2%) | Pierre Swim Team | 06/27/2026 | 2026 SD Summer Starter | ||
| 38 | Samuel Swanson | 1:12.01 | 8 | B: 1:00.89 (+11.12s | 15.4%) | Chamberlain Swim Team | 06/27/2026 | 2026 SD Summer Starter | ||
| 39 | David Peterson | 1:13.87 | 10 | B: 1:00.89 (+12.98s | 17.6%) | Brookings Swim Club | 06/05/2026 | 2026 SD BSC Tropical Summer Splash High Point | ||
| 40 | Aleksandr Bevier | 1:13.97 | 8 | B: 1:00.89 (+13.08s | 17.7%) | Black Hills Gold Swimming | 06/12/2026 | 2026 RST Coach Beth Rushmore Classic | ||
| 41 | Henry Whalen | 1:14.10 | 9 | B: 1:00.89 (+13.21s | 17.8%) | Sioux Falls Swim Team | 07/18/2025 | 2025 SD State Long Course Meet | ||
| 42 | Hudson Rausch | 1:14.32 | 9 | B: 1:00.89 (+13.43s | 18.1%) | Brookings Swim Club | 07/11/2025 | 2025 SD Long Course State B Swim Meet | ||
| 43 | Theodore Hall | 1:14.56 | 9 | B: 1:00.89 (+13.67s | 18.3%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | ||
| 44 | Daniel Mcconnell | 1:15.32 | 8 | B: 1:00.89 (+14.43s | 19.2%) | Rushmore Swim Team | 07/11/2025 | 2025 SD Long Course State B Swim Meet | ||
| 45 | Lincoln VanKeulen | 1:15.70 | 8 | B: 1:00.89 (+14.81s | 19.6%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | ||
| 46 | Camden Evenson | 1:16.88 | 10 | B: 1:00.89 (+15.99s | 20.8%) | Aberdeen Swim Club | 06/19/2026 | 2026 SD Aberdeen Summer High Point Swim Meet | ||
| 47 | Emiliano Reyes | 1:18.10 | 9 | B: 1:00.89 (+17.21s | 22.0%) | Sioux Falls Swim Team | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | ||
| 48 | Jack McEntee | 1:18.99 | 10 | B: 1:00.89 (+18.10s | 22.9%) | Dakota Riptide | 06/12/2026 | 2026 Splash Central Invitational | ||
| 49 | Clayton Ulrich | 1:19.53 | 7 | B: 1:00.89 (+18.64s | 23.4%) | Sioux Falls Swim Team | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | ||
| 50 | Adrian Winter | 1:19.59 | 9 | B: 1:00.89 (+18.70s | 23.5%) | Miller Swim Club | 06/28/2025 | 2025 SD Summer Starter | ||
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.