South Dakota Swimming Boys 10 & under - 50 Y 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 | John Umiker | 19.32 | 10 | AAAA Min | Pierre Swim Team | 12/06/2024 | 2024 SD TIDE SC Winter Invite | ||
| 2 | Bentley Frost | 19.41 | 10 | AAAA Min | Pierre Swim Team | 12/01/2023 | 2023 SD TIDE SC Winter Invite | ||
| 3 | Bentley Lenhart | 25.94 | 9 | AAAA Min | Brookings Swim Club | 11/08/2025 | 2025 SD Brookings Swim Club Medley Scramble | ||
| 4 | Gavin Mahrous | 29.99 | 9 | A Min | AA: 29.89 (+0.10s | 0.3%) | Sioux Falls Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 5 | Lawson Kroon | 31.53 | 10 | BB Min | A: 31.09 (+0.44s | 1.4%) | Pierre Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 6 | Lukas Bergman | 31.91 | 9 | BB Min | A: 31.09 (+0.82s | 2.6%) | Rushmore Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 7 | Ashton VanKeulen | 32.87 | 10 | BB Min | A: 31.09 (+1.78s | 5.4%) | Sioux Falls Swim Team | 12/13/2025 | VAST Winter Invitational | |
| 8 | Dylan Myers | 33.49 | 10 | BB Min | A: 31.09 (+2.40s | 7.2%) | Black Hills Gold Swimming | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 9 | Jordy Walder | 33.57 | 10 | BB Min | A: 31.09 (+2.48s | 7.4%) | Dakota Riptide | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 10 | Marcus Pass | 33.76 | 10 | BB Min | A: 31.09 (+2.67s | 7.9%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | |
| 11 | Quentyn Boerboom | 33.84 | 10 | BB Min | A: 31.09 (+2.75s | 8.1%) | Southwest Swim Club | 01/03/2026 | 2026 SD ASC Winter High Point | |
| 12 | Connor Dudley | 33.92 | 10 | BB Min | A: 31.09 (+2.83s | 8.3%) | Madison Swim Club Inc. | 01/23/2026 | SFST SD 2026 January Invite | |
| 13 | Isaac Sabers | 34.85 | 10 | B Min | BB: 34.59 (+0.26s | 0.7%) | Sioux Falls Swim Team | 02/21/2025 | 2025 12 U Short Course State A Championship | |
| 14 | Briggs North | 35.04 | 10 | B Min | BB: 34.59 (+0.45s | 1.3%) | Aberdeen Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 15 | Evan Morehouse | 35.09 | 10 | B Min | BB: 34.59 (+0.50s | 1.4%) | Brookings Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 16 | Samuel Hoftiezer | 35.24 | 8 | B Min | BB: 34.59 (+0.65s | 1.8%) | Watertown Area Swim Club | 02/06/2026 | 2026 Qualifying Meet | |
| 17 | Maxwell Schleusner | 35.37 | 10 | B Min | BB: 34.59 (+0.78s | 2.2%) | Watertown Area Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 18 | Owen Hoots | 35.41 | 9 | B Min | BB: 34.59 (+0.82s | 2.3%) | Watertown Area Swim Club | 05/30/2026 | 2026 Too Cool For The Pool | |
| 19 | Ryker Mahowald | 35.57 | 10 | B Min | BB: 34.59 (+0.98s | 2.8%) | Vermillion Area Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 20 | Hudson Rausch | 35.64 | 9 | B Min | BB: 34.59 (+1.05s | 2.9%) | Brookings Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 21 | Jonathan Fosheim | 35.85 | 10 | B Min | BB: 34.59 (+1.26s | 3.5%) | Webster Swim Team | 07/16/2026 | Milbank Swim Meet | |
| 22 | Nolan Hunter | 36.06 | 10 | B Min | BB: 34.59 (+1.47s | 4.1%) | Rushmore Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 23 | Camden Evenson | 36.11 | 10 | B Min | BB: 34.59 (+1.52s | 4.2%) | Aberdeen Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 24 | Owen King | 36.35 | 10 | B Min | BB: 34.59 (+1.76s | 4.8%) | Rushmore Swim Team | 01/30/2026 | 2026 SD Capital City Qualifier | |
| 25 | Adrian Winter | 36.90 | 9 | B Min | BB: 34.59 (+2.31s | 6.3%) | Miller Swim Club | 08/01/2026 | 2026 SD Seasonal State Championship | |
| 26 | Austin Headley | 37.00 | 10 | B Min | BB: 34.59 (+2.41s | 6.5%) | Sioux Falls Swim Team | 12/13/2025 | VAST Winter Invitational | |
| 27 | Adam Oorlog | 37.16 | 10 | B Min | BB: 34.59 (+2.57s | 6.9%) | Brookings Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 28 | Finn Reimers | 37.30 | 10 | B Min | BB: 34.59 (+2.71s | 7.3%) | Pierre Swim Team | 11/08/2025 | 2025 SD Pierre Invitational | |
| 29 | Patrick Velgersdyk | 38.13 | 10 | B Min | BB: 34.59 (+3.54s | 9.3%) | Sioux Falls Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 30 | Franklin Vesely | 38.55 | 9 | B: 38.19 (+0.36s | 0.9%) | Rushmore Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | ||
| 31 | Jeremiah Manning | 38.67 | 10 | B: 38.19 (+0.48s | 1.2%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 32 | Jack McEntee | 38.67 | 10 | B: 38.19 (+0.48s | 1.2%) | Dakota Riptide | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | ||
| 33 | Michael Callahan | 39.17 | 10 | B: 38.19 (+0.98s | 2.5%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 34 | Riley Zubke | 40.30 | 10 | B: 38.19 (+2.11s | 5.2%) | Watertown Area Swim Club | 08/01/2026 | 2026 SD Seasonal State Championship | ||
| 35 | Jackson Bisson | 40.36 | 10 | B: 38.19 (+2.17s | 5.4%) | Brookings Swim Club | 12/13/2025 | VAST Winter Invitational | ||
| 36 | Greyson Fritz | 40.72 | 10 | B: 38.19 (+2.53s | 6.2%) | Watertown Area Swim Club | 01/31/2026 | 2026 SD SSC Southwest Splash | ||
| 37 | William Olson | 40.84 | 9 | B: 38.19 (+2.65s | 6.5%) | Vermillion Area Swim Team | 11/08/2025 | 2025 MW NYA Jenna Krivohlavek Memorial | ||
| 38 | Grant Huesers | 41.28 | 10 | B: 38.19 (+3.09s | 7.5%) | Vermillion Area Swim Team | 11/08/2025 | 2025 MW NYA Jenna Krivohlavek Memorial | ||
| 39 | Gunnar Syverson | 41.79 | 9 | B: 38.19 (+3.60s | 8.6%) | Sioux Falls Swim Team | 02/13/2026 | 2026 SD Short Course Rising Stars | ||
| 40 | Flynn Erickson | 41.94 | 7 | B: 38.19 (+3.75s | 8.9%) | Watertown Area Swim Club | 02/06/2026 | 2026 Qualifying Meet | ||
| 41 | Emmett Fredericksen | 41.98 | 9 | B: 38.19 (+3.79s | 9.0%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 42 | Kase Walker | 41.99 | 8 | B: 38.19 (+3.80s | 9.0%) | Black Hills Gold Swimming | 01/30/2026 | 2026 SD Capital City Qualifier | ||
| 43 | Daniel Mcconnell | 42.12 | 8 | B: 38.19 (+3.93s | 9.3%) | Rushmore Swim Team | 01/30/2026 | 2026 SD Capital City Qualifier | ||
| 44 | Maximus Newton | 42.13 | 8 | B: 38.19 (+3.94s | 9.4%) | Aberdeen Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | ||
| 45 | Huck Flannery | 42.17 | 7 | B: 38.19 (+3.98s | 9.4%) | Yankton Swim Team | 12/13/2025 | VAST Winter Invitational | ||
| 46 | Layton Boots | 42.99 | 9 | B: 38.19 (+4.80s | 11.2%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 47 | Logan Landreth | 43.57 | 8 | B: 38.19 (+5.38s | 12.3%) | Britton Swim Team | 07/10/2026 | 2026 SD Webster High Point Meet | ||
| 48 | Owen Richards | 43.72 | 10 | B: 38.19 (+5.53s | 12.6%) | Pierre Swim Team | 02/13/2026 | 2026 SD Short Course Rising Stars | ||
| 49 | Emiliano Reyes | 43.83 | 9 | B: 38.19 (+5.64s | 12.9%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 50 | Reed Williams | 44.30 | 9 | B: 38.19 (+6.11s | 13.8%) | Black Hills Gold Swimming | 02/13/2026 | 2026 SD Short Course Rising Stars | ||
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.