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 | |
|---|---|---|---|---|---|---|---|---|---|
| 151 | Finnegan Persampieri | 46.88 | 10 | BB Min | A: 42.09 (+4.79s | 10.2%) | Otter Swim Club | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 152 | Tyler Siu | 46.89 | 10 | BB Min | A: 42.09 (+4.80s | 10.2%) | El Cerrito Gators | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 153 | Aarav Narayan | 46.90 | 10 | BB Min | A: 42.09 (+4.81s | 10.3%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 154 | Jonathan Chen | 47.00 | 9 | BB Min | A: 42.09 (+4.91s | 10.4%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 155 | Kai Kitamori | 47.04 | 10 | BB Min | A: 42.09 (+4.95s | 10.5%) | East Bay Bat Rays | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 156 | Harrison Tian | 47.24 | 9 | BB Min | A: 42.09 (+5.15s | 10.9%) | San Ramon Valley Aquatics | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 157 | Jaden Manalastas | 47.26 | 9 | BB Min | A: 42.09 (+5.17s | 10.9%) | South San Francisco Aquatics | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 158 | Harry Huynh | 47.28 | 10 | BB Min | A: 42.09 (+5.19s | 11.0%) | Sunnyvale Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 159 | Vishnu Srinivasan | 47.28 | 10 | BB Min | A: 42.09 (+5.19s | 11.0%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 160 | Noah Gonzales | 47.29 | 10 | BB Min | A: 42.09 (+5.20s | 11.0%) | South San Francisco Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 161 | Ilan Rattner | 47.35 | 9 | BB Min | A: 42.09 (+5.26s | 11.1%) | Sunnyvale Swim Club | 03/07/2026 | DACA CBA Meet | |
| 162 | Kingston Walls | 47.38 | 8 | BB Min | A: 42.09 (+5.29s | 11.2%) | Walnut Creek Aquabears | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 163 | Shayan Sarkar | 47.41 | 9 | BB Min | A: 42.09 (+5.32s | 11.2%) | Diablo Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 164 | Noah Jagdev | 47.43 | 10 | BB Min | A: 42.09 (+5.34s | 11.3%) | San Ramon Valley Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 165 | Carter Schwenk | 47.43 | 10 | BB Min | A: 42.09 (+5.34s | 11.3%) | Burlingame Aquatics | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 166 | Zaddik Fan | 47.43 | 10 | BB Min | A: 42.09 (+5.34s | 11.3%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 167 | Nixon Lo | 47.44 | 8 | BB Min | A: 42.09 (+5.35s | 11.3%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 168 | Hayk Asatryan | 47.45 | 10 | BB Min | A: 42.09 (+5.36s | 11.3%) | Milpitas Aquatic Club | 09/27/2025 | 2025 MAC Season Kick Off | |
| 169 | Tyler Mirasol | 47.51 | 9 | BB Min | A: 42.09 (+5.42s | 11.4%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 170 | Eric Lie | 47.55 | 10 | BB Min | A: 42.09 (+5.46s | 11.5%) | Quicksilver Swimming | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 171 | Nicolas Etkin | 47.55 | 10 | BB Min | A: 42.09 (+5.46s | 11.5%) | Los Altos Mountain View Aquati | 10/25/2025 | 2025 SUNN Fall Classic | |
| 172 | Evan Zhang | 47.56 | 8 | BB Min | A: 42.09 (+5.47s | 11.5%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 173 | Leo Hayes | 47.62 | 8 | BB Min | A: 42.09 (+5.53s | 11.6%) | Ladera Oaks | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 174 | Adrian Williams | 47.62 | 8 | BB Min | A: 42.09 (+5.53s | 11.6%) | Piranha Swimming | 11/08/2025 | TCA PC November SC C B A+ | |
| 175 | Arthur Cahoy | 47.64 | 9 | BB Min | A: 42.09 (+5.55s | 11.6%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 176 | Wynn Kitsadaviseksak | 47.64 | 10 | BB Min | A: 42.09 (+5.55s | 11.6%) | Hills Hurricane Swimming | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 177 | Fedor Akimov | 47.69 | 10 | BB Min | A: 42.09 (+5.60s | 11.7%) | YMCA Presidio Aquatics | 03/07/2026 | Napa Valley Swim Team Swimming Towards Spring | |
| 178 | Zhencheng Xu | 47.81 | 10 | B Min | BB: 47.69 (+0.12s | 0.3%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 179 | Joshua Miao | 47.81 | 10 | B Min | BB: 47.69 (+0.12s | 0.3%) | Quicksilver Swimming | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 180 | Marek Perzov | 47.82 | 10 | B Min | BB: 47.69 (+0.13s | 0.3%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 181 | BaoSheng Wang | 47.83 | 8 | B Min | BB: 47.69 (+0.14s | 0.3%) | San Ramon Valley Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 182 | Holden Ling | 47.85 | 10 | B Min | BB: 47.69 (+0.16s | 0.3%) | The Olympic Club | 10/18/2025 | Sebastopol Sea Serpents CBA+ Pumpkin Plunge | |
| 183 | Evan Doong | 47.86 | 10 | B Min | BB: 47.69 (+0.17s | 0.4%) | Sunnyvale Swim Club | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 184 | Alex Li | 47.86 | 9 | B Min | BB: 47.69 (+0.17s | 0.4%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 185 | Chengkai Cui | 47.87 | 10 | B Min | BB: 47.69 (+0.18s | 0.4%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 186 | Samuel Zhou | 47.89 | 9 | B Min | BB: 47.69 (+0.20s | 0.4%) | Bay Club Panthers | 03/07/2026 | BAC Race To AGCs | |
| 187 | Matthew Chen | 47.90 | 10 | B Min | BB: 47.69 (+0.21s | 0.4%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 188 | Oliver Liu | 47.91 | 10 | B Min | BB: 47.69 (+0.22s | 0.5%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 189 | William Frohnen | 47.92 | 9 | B Min | BB: 47.69 (+0.23s | 0.5%) | San Ramon Valley Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 190 | Garrett Legg | 47.93 | 8 | B Min | BB: 47.69 (+0.24s | 0.5%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 191 | Ethan Yang | 47.95 | 8 | B Min | BB: 47.69 (+0.26s | 0.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 192 | Sam Beck | 47.96 | 10 | B Min | BB: 47.69 (+0.27s | 0.6%) | Lakeridge Swim Team | 03/14/2026 | 2026 NNA AGO | |
| 193 | Ryan Li | 48.03 | 10 | B Min | BB: 47.69 (+0.34s | 0.7%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 194 | Max Lim | 48.10 | 9 | B Min | BB: 47.69 (+0.41s | 0.9%) | San Ramon Valley Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 195 | Ryden Ciammaichella | 48.15 | 9 | B Min | BB: 47.69 (+0.46s | 1.0%) | Piedmont Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 196 | Joon Cha | 48.18 | 9 | B Min | BB: 47.69 (+0.49s | 1.0%) | Sunnyvale Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 197 | Charlie Wang | 48.23 | 9 | B Min | BB: 47.69 (+0.54s | 1.1%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 198 | Alexandru Varga | 48.23 | 6 | B Min | BB: 47.69 (+0.54s | 1.1%) | Terrapins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 199 | Gavin Yang | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 200 | Norne Fang | 48.32 | 8 | B Min | BB: 47.69 (+0.63s | 1.3%) | Milpitas Aquatic Club | 09/27/2025 | 2025 MAC Season Kick Off | |
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.