Pacific Swimming Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 301 | James King | 51.60 | 9 | B Min | BB: 47.69 (+3.91s | 7.6%) | The Olympic Club | 01/17/2026 | PC PRNA Final Splash To The Championship CBA+ | |
| 302 | Atharv Tiruke | 51.61 | 9 | B Min | BB: 47.69 (+3.92s | 7.6%) | Sunnyvale Swim Club | 10/25/2025 | 2025 SUNN Fall Classic | |
| 303 | Marlon Chinchilla | 51.63 | 9 | B Min | BB: 47.69 (+3.94s | 7.6%) | Piranha Swimming | 04/18/2026 | RP SWIM CLUB (PRNA) SPRING SWIM FEST! | |
| 304 | Elliott Poe Brown | 51.66 | 8 | B Min | BB: 47.69 (+3.97s | 7.7%) | Burlingame Aquatics | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 305 | Piradon Pukrittayakamee | 51.68 | 9 | B Min | BB: 47.69 (+3.99s | 7.7%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 306 | Kieran McLennan | 51.71 | 9 | B Min | BB: 47.69 (+4.02s | 7.8%) | Otter Swim Club | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 307 | Hugo Pace | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Pacifica Sea Lions | 03/28/2026 | PSL March CBA+ | |
| 308 | Kingston Walls | 51.78 | 9 | B Min | BB: 47.69 (+4.09s | 7.9%) | Terrapins Swim Team | 11/15/2024 | Pacific Swimming SCY B BB+ Last Chance Meet | |
| 309 | Lucas Fleck | 51.79 | 10 | B Min | BB: 47.69 (+4.10s | 7.9%) | AC Swim Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 310 | Storm Houborg | 51.86 | 9 | B Min | BB: 47.69 (+4.17s | 8.0%) | San Ramon Valley Aquatics | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 311 | Vedant Tomar | 51.90 | 9 | B Min | BB: 47.69 (+4.21s | 8.1%) | California Dolphins Swim Team | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 312 | Wesley Albright | 51.96 | 9 | B Min | BB: 47.69 (+4.27s | 8.2%) | Reno Aquatic Club | 03/15/2025 | 2025 NNA Age Group Open | |
| 313 | Aiden Xu | 52.00 | 9 | B Min | BB: 47.69 (+4.31s | 8.3%) | Northern Nevada Aquatics | 03/14/2026 | 2026 NNA AGO | |
| 314 | Ryan Feng | 52.02 | 9 | B Min | BB: 47.69 (+4.33s | 8.3%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 315 | Logan Rowalt | 52.03 | 9 | B Min | BB: 47.69 (+4.34s | 8.3%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 316 | Albert Jing | 52.04 | 8 | B Min | BB: 47.69 (+4.35s | 8.4%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 317 | Owen Mast | 52.09 | 9 | B Min | BB: 47.69 (+4.40s | 8.4%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 318 | Lev Gishizky | 52.09 | 10 | B Min | BB: 47.69 (+4.40s | 8.4%) | Waves Aquatics Napa Valley | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 319 | Nash Meredith | 52.10 | 10 | B Min | BB: 47.69 (+4.41s | 8.5%) | Pacifica Sea Lions | 02/07/2026 | 2026 PSL Super Finals Invitational | |
| 320 | Donovan Di Loreto | 52.15 | 9 | B Min | BB: 47.69 (+4.46s | 8.6%) | Carson Tigersharks | 06/13/2026 | Bishop Invitational 2026 | |
| 321 | Ethan Shiflet | 52.18 | 9 | B Min | BB: 47.69 (+4.49s | 8.6%) | Montclair Swim Team | 07/10/2026 | Redwood Empire Swim League Championship | |
| 322 | Jace Gordon | 52.22 | 9 | B Min | BB: 47.69 (+4.53s | 8.7%) | Los Gatos Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 323 | Tomaso Pisegna | 52.23 | 9 | B Min | BB: 47.69 (+4.54s | 8.7%) | South Valley Makos | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 324 | Charles Zheng | 52.25 | 10 | B Min | BB: 47.69 (+4.56s | 8.7%) | California Dolphins Swim Team | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 325 | Noah Marin | 52.30 | 10 | B Min | BB: 47.69 (+4.61s | 8.8%) | Aptos Cabrillo Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 326 | Adam Ellingwood | 52.34 | 10 | B Min | BB: 47.69 (+4.65s | 8.9%) | Orinda Aquatics | 05/18/2025 | Montclair 14 Under Short Course Pentathlon | |
| 327 | Clark Wilson | 52.35 | 10 | B Min | BB: 47.69 (+4.66s | 8.9%) | Unattached | 12/06/2025 | Alto Dec 6 7 CBA | |
| 328 | Sawyer Stephenson-Sabin | 52.35 | 10 | B Min | BB: 47.69 (+4.66s | 8.9%) | Napa Valley Swim Team | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 329 | Maxwell Kelsey | 52.36 | 9 | B Min | BB: 47.69 (+4.67s | 8.9%) | Almaden Riptide | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 330 | Joohwan Kim | 52.39 | 8 | B Min | BB: 47.69 (+4.70s | 9.0%) | DeAnza Cupertino Aquatics | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 331 | Logan Ma | 52.41 | 9 | B Min | BB: 47.69 (+4.72s | 9.0%) | East Bay Silver Dolphins | 10/17/2025 | 2025 KING OF THE HILL CHALLENGE | |
| 332 | Chinmay Joshi | 52.43 | 9 | B Min | BB: 47.69 (+4.74s | 9.0%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 333 | Mateo Lopez | 52.45 | 8 | B Min | BB: 47.69 (+4.76s | 9.1%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 334 | Zachary Tsang | 52.46 | 9 | B Min | BB: 47.69 (+4.77s | 9.1%) | Palo Alto Stanford Aquatics | 07/10/2026 | Sensational Summer Of 26 Block Party | |
| 335 | Clayton Du | 52.47 | 9 | B Min | BB: 47.69 (+4.78s | 9.1%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 336 | Maxwell Ma | 52.53 | 9 | B Min | BB: 47.69 (+4.84s | 9.2%) | California Dolphins Swim Team | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 337 | Arthur Viray | 52.54 | 9 | B Min | BB: 47.69 (+4.85s | 9.2%) | Daly City Dolphins | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 338 | Daniel Rumean | 52.55 | 10 | B Min | BB: 47.69 (+4.86s | 9.2%) | Sunnyvale Swim Club | 09/28/2025 | SUNN Blue And Gold Intrasquad Meet Copied | |
| 339 | Hugo Situ | 52.59 | 9 | B Min | BB: 47.69 (+4.90s | 9.3%) | Daly City Dolphins | 10/11/2025 | SSF October Splash C B A+ Meet | |
| 340 | William Huang | 52.60 | 8 | B Min | BB: 47.69 (+4.91s | 9.3%) | Daly City Dolphins | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 341 | Alexander Forward | 52.61 | 8 | B Min | BB: 47.69 (+4.92s | 9.4%) | San Jose Goosemonkeys | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 342 | Leonardo Goh | 52.64 | 9 | B Min | BB: 47.69 (+4.95s | 9.4%) | Piedmont Swim Team | 07/10/2026 | Redwood Empire Swim League Championship | |
| 343 | Patrick Chen | 52.65 | 9 | B Min | BB: 47.69 (+4.96s | 9.4%) | Sunnyvale Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 344 | Logan Shen | 52.65 | 10 | B Min | BB: 47.69 (+4.96s | 9.4%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 345 | Christopher Rasmuson | 52.68 | 9 | B Min | BB: 47.69 (+4.99s | 9.5%) | Bishop Swim Team | 06/13/2026 | Bishop Invitational 2026 | |
| 346 | Beau Connelly | 52.73 | 10 | B Min | BB: 47.69 (+5.04s | 9.6%) | Los Gatos Swim Club | 11/15/2024 | MBSC GSMY Z1S Race To AGC C B A+ | |
| 347 | Clarence Lee | 52.76 | 10 | B Min | BB: 47.69 (+5.07s | 9.6%) | Daly City Dolphins | 02/07/2026 | 2026 PSL Super Finals Invitational | |
| 348 | Pi Cheng | 52.78 | 10 | B Min | BB: 47.69 (+5.09s | 9.6%) | Los Altos Mountain View Aquati | 03/28/2026 | LAMV C B A+ Meet | |
| 349 | Evan Kim | 52.78 | 10 | B Min | BB: 47.69 (+5.09s | 9.6%) | Sunnyvale Swim Club | 03/28/2026 | LAMV C B A+ Meet | |
| 350 | Andrew Simon-O'Neill | 52.89 | 10 | B Min | BB: 47.69 (+5.20s | 9.8%) | Oakland Undercurrent Swim Team | 04/18/2026 | RP SWIM CLUB (PRNA) SPRING SWIM FEST! | |
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.