Pacific 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 51 | Rex Brinkerhoff | 30.65 | 13 | A Min | AA: 29.89 (+0.76s | 2.5%) | East Bay Bat Rays | 09/27/2025 | PC LAC C B BB | |
| 52 | Jacob Song | 30.90 | 10 | A Min | AA: 29.89 (+1.01s | 3.3%) | Palo Alto Stanford Aquatics | 07/20/2025 | 2025 PASA Summer Palooza | |
| 53 | Leo Ferrante | 30.90 | 10 | A Min | AA: 29.89 (+1.01s | 3.3%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 54 | Jason Yin | 30.92 | 9 | A Min | AA: 29.89 (+1.03s | 3.3%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 55 | Jason Feng | 30.95 | 10 | A Min | AA: 29.89 (+1.06s | 3.4%) | Boys & Girls Club of SF | 12/12/2025 | Winter SC Age Group Championships | |
| 56 | Muyang He | 30.95 | 9 | A Min | AA: 29.89 (+1.06s | 3.4%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 57 | Adam Ma | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | California Dolphins Swim Team | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 58 | Ozzy Su | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 59 | Aaron Kuusela | 31.10 | 10 | BB Min | A: 31.09 (+0.01s | 0.0%) | Alto Swim Club | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 60 | Nico Czelusta | 31.12 | 10 | BB Min | A: 31.09 (+0.03s | 0.1%) | Aptos Cabrillo Swim Club | 07/18/2025 | CVAL | |
| 61 | Kota Whitman | 31.13 | 10 | BB Min | A: 31.09 (+0.04s | 0.1%) | North Bay Aquatics | 10/11/2025 | VJO Sprint For The Golden Ticket CBA+ 2025 | |
| 62 | Arthur Shackelton | 31.13 | 9 | BB Min | A: 31.09 (+0.04s | 0.1%) | Lakeridge Swim Team | 01/16/2026 | 2026 Blizzard Blast Swim Meet | |
| 63 | Christian Hernandez | 31.17 | 10 | BB Min | A: 31.09 (+0.08s | 0.3%) | Walnut Creek Aquabears | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 64 | Jamie Pan | 31.18 | 10 | BB Min | A: 31.09 (+0.09s | 0.3%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 65 | Nolan Lu | 31.28 | 10 | BB Min | A: 31.09 (+0.19s | 0.6%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 66 | Liam Reyes | 31.38 | 10 | BB Min | A: 31.09 (+0.29s | 0.9%) | Reno Aquatic Club | 03/14/2026 | 2026 NNA AGO | |
| 67 | Jackson Lee | 31.38 | 10 | BB Min | A: 31.09 (+0.29s | 0.9%) | Burlingame Aquatics | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 68 | Charles Liu Bates | 31.40 | 10 | BB Min | A: 31.09 (+0.31s | 1.0%) | California Dolphins Swim Team | 10/18/2025 | PC CDST SC C B BB+ | |
| 69 | Tatsumasa Sekine | 31.41 | 9 | BB Min | A: 31.09 (+0.32s | 1.0%) | Santa Clara Swim Club | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 70 | Micah Connell | 31.46 | 10 | BB Min | A: 31.09 (+0.37s | 1.2%) | Quicksilver Swimming | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 71 | Deren Chai | 31.54 | 10 | BB Min | A: 31.09 (+0.45s | 1.4%) | Pleasanton Seahawks | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 72 | Oliver Maa | 31.57 | 10 | BB Min | A: 31.09 (+0.48s | 1.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 73 | Min Yang | 31.65 | 11 | BB Min | A: 31.09 (+0.56s | 1.8%) | Pleasanton Seahawks | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 74 | Arthur Chen | 31.67 | 10 | BB Min | A: 31.09 (+0.58s | 1.8%) | Alto Swim Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 75 | Arwin Safaee | 31.68 | 10 | BB Min | A: 31.09 (+0.59s | 1.9%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 76 | Mateo Sison | 31.69 | 10 | BB Min | A: 31.09 (+0.60s | 1.9%) | San Ramon Valley Aquatics | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 77 | Connor Dennis | 31.71 | 10 | BB Min | A: 31.09 (+0.62s | 2.0%) | Pacifica Sea Lions | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 78 | Cole Proescher | 31.72 | 9 | BB Min | A: 31.09 (+0.63s | 2.0%) | Orinda Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 79 | Michael Lim | 31.80 | 11 | BB Min | A: 31.09 (+0.71s | 2.2%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 80 | Julian Phillips | 31.82 | 10 | BB Min | A: 31.09 (+0.73s | 2.3%) | Quicksilver Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 81 | Jayden Zhu | 31.93 | 10 | BB Min | A: 31.09 (+0.84s | 2.6%) | Otter Swim Club | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 82 | Hei Chan | 31.97 | 10 | BB Min | A: 31.09 (+0.88s | 2.8%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 83 | Yixuan Zhu | 31.97 | 10 | BB Min | A: 31.09 (+0.88s | 2.8%) | Pleasanton Seahawks | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 84 | Benjamin Shen | 32.00 | 10 | BB Min | A: 31.09 (+0.91s | 2.8%) | Orinda Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 85 | John Griswold | 32.06 | 10 | BB Min | A: 31.09 (+0.97s | 3.0%) | Alameda Gators | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 86 | Banyan Villagomez | 32.09 | 10 | BB Min | A: 31.09 (+1.00s | 3.1%) | Humboldt Swim Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 87 | Christian Hernandez | 32.09 | 10 | BB Min | A: 31.09 (+1.00s | 3.1%) | Walnut Creek Aquabears | 10/18/2025 | PC SRVA SCY B BB+ Meet | |
| 88 | Miro Wang | 32.13 | 10 | BB Min | A: 31.09 (+1.04s | 3.2%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 89 | Liam Marciel | 32.15 | 8 | BB Min | A: 31.09 (+1.06s | 3.3%) | South Valley Makos | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 90 | Chayton Zhou | 32.21 | 8 | BB Min | A: 31.09 (+1.12s | 3.5%) | Pleasanton Seahawks | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 91 | Ryan Chen | 32.21 | 10 | BB Min | A: 31.09 (+1.12s | 3.5%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 92 | Youssef Mahassine | 32.25 | 10 | BB Min | A: 31.09 (+1.16s | 3.6%) | Walnut Creek Aquabears | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 93 | Ryan Koh | 32.25 | 10 | BB Min | A: 31.09 (+1.16s | 3.6%) | Quicksilver Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 94 | David Rivera | 32.31 | 10 | BB Min | A: 31.09 (+1.22s | 3.8%) | Almaden Riptide | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 95 | Maxwell Yao | 32.36 | 9 | BB Min | A: 31.09 (+1.27s | 3.9%) | Gilroy Gators Swim Team | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 96 | Konnor Pham-Nguyen | 32.37 | 10 | BB Min | A: 31.09 (+1.28s | 4.0%) | Alameda Gators | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 97 | Ahmet Okyay | 32.39 | 10 | BB Min | A: 31.09 (+1.30s | 4.0%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 98 | Daniel Reschke | 32.43 | 10 | BB Min | A: 31.09 (+1.34s | 4.1%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 99 | Brayden Nguyen | 32.44 | 9 | BB Min | A: 31.09 (+1.35s | 4.2%) | San Jose Goosemonkeys | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 100 | Nicholas Mosendz | 32.48 | 9 | BB Min | A: 31.09 (+1.39s | 4.3%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
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.