Sioux Falls Swim Team Boys 10 & under 50 Y Back
These rankings show the swimmers' placement within their swim team.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 | 35.25 | 9 | AA Min | AAA: 33.99 (+1.26s | 3.6%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 2 | Ashton VanKeulen | 38.06 | 9 | BB Min | A: 37.59 (+0.47s | 1.2%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | |
| 3 | Marcus Pass | 40.04 | 9 | BB Min | A: 37.59 (+2.45s | 6.1%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 4 | Isaac Sabers | 40.69 | 9 | BB Min | A: 37.59 (+3.10s | 7.6%) | Sioux Falls Swim Team | 01/24/2025 | SFST SD 2025 January Invite | |
| 5 | Evan Zuercher | 44.48 | 10 | B Min | BB: 42.89 (+1.59s | 3.6%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | |
| 6 | Jackson Thum | 45.96 | 10 | B Min | BB: 42.89 (+3.07s | 6.7%) | Sioux Falls Swim Team | 11/15/2025 | 2025 SD YST Charity Invite | |
| 7 | Austin Headley | 46.07 | 9 | B Min | BB: 42.89 (+3.18s | 6.9%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 8 | Greyson Schafer | 46.87 | 10 | B Min | BB: 42.89 (+3.98s | 8.5%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 9 | Josiah Butterfield | 47.49 | 10 | B Min | BB: 42.89 (+4.60s | 9.7%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | |
| 10 | Emmett Fredericksen | 47.91 | 9 | B Min | BB: 42.89 (+5.02s | 10.5%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 11 | Patrick Velgersdyk | 48.07 | 10 | B Min | BB: 42.89 (+5.18s | 10.8%) | Sioux Falls Swim Team | 12/13/2025 | VAST Winter Invitational | |
| 12 | Michael Callahan | 48.34 | 10 | B: 48.29 (+0.05s | 0.1%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | ||
| 13 | Rowan Otis | 49.27 | 8 | B: 48.29 (+0.98s | 2.0%) | Sioux Falls Swim Team | 02/21/2025 | 2025 12 U Short Course State A Championship | ||
| 14 | Layton Boots | 49.51 | 8 | B: 48.29 (+1.22s | 2.5%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 15 | Emiliano Reyes | 50.83 | 9 | B: 48.29 (+2.54s | 5.0%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 16 | Jeremiah Manning | 51.11 | 10 | B: 48.29 (+2.82s | 5.5%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 17 | Gabriel Ashton | 51.43 | 9 | B: 48.29 (+3.14s | 6.1%) | Sioux Falls Swim Team | 01/11/2025 | 2025 SD Optimist High Point Meet | ||
| 18 | Gunnar Syverson | 51.48 | 9 | B: 48.29 (+3.19s | 6.2%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 19 | Oliver Ollerton | 51.76 | 8 | B: 48.29 (+3.47s | 6.7%) | Sioux Falls Swim Team | 09/29/2023 | 2023 SFST Night At The Races Pt 1 | ||
| 20 | Theodore Hall | 51.84 | 8 | B: 48.29 (+3.55s | 6.8%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 21 | Jack Griffith | 52.07 | 9 | B: 48.29 (+3.78s | 7.3%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 22 | Andrii Paliienko | 52.53 | 9 | B: 48.29 (+4.24s | 8.1%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | ||
| 23 | Everett Ham | 55.06 | 8 | B: 48.29 (+6.77s | 12.3%) | Sioux Falls Swim Team | 01/24/2025 | SFST SD 2025 January Invite | ||
| 24 | Henry Whalen | 55.13 | 9 | B: 48.29 (+6.84s | 12.4%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 25 | Owen Smith | 56.30 | 10 | B: 48.29 (+8.01s | 14.2%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | ||
| 26 | Clayton Ulrich | 57.43 | 7 | B: 48.29 (+9.14s | 15.9%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | ||
| 27 | Kaleb Kreifels | 58.53 | 9 | B: 48.29 (+10.24s | 17.5%) | Sioux Falls Swim Team | 02/07/2025 | 2025 SD Short Course B Championship | ||
| 28 | Lincoln VanKeulen | 1:02.28 | 7 | B: 48.29 (+13.99s | 22.5%) | Sioux Falls Swim Team | 02/06/2026 | 2026 Qualifying Meet | ||
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.