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 | 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 | |
| 152 | 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 | |
| 153 | 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 | |
| 154 | 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 | |
| 155 | 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+ | |
| 156 | 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 | |
| 157 | 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+ | |
| 158 | Zhencheng Xu | 47.81 | 10 | B Min | BB: 47.69 (+0.12s | 0.3%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 159 | Marek Perzov | 47.82 | 10 | B Min | BB: 47.69 (+0.13s | 0.3%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 160 | 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+ | |
| 161 | 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 | |
| 162 | Alex Li | 47.86 | 9 | B Min | BB: 47.69 (+0.17s | 0.4%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 163 | Chengkai Cui | 47.87 | 10 | B Min | BB: 47.69 (+0.18s | 0.4%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 164 | Samuel Zhou | 47.89 | 10 | B Min | BB: 47.69 (+0.20s | 0.4%) | Bay Club Panthers | 03/07/2026 | BAC Race To AGCs | |
| 165 | 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 | |
| 166 | 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+ | |
| 167 | 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 | |
| 168 | Ethan Yang | 47.95 | 8 | B Min | BB: 47.69 (+0.26s | 0.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 169 | Sam Beck | 47.96 | 10 | B Min | BB: 47.69 (+0.27s | 0.6%) | Lakeridge Swim Team | 03/14/2026 | 2026 NNA AGO | |
| 170 | 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 | |
| 171 | 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+ | |
| 172 | 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+ | |
| 173 | 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 | |
| 174 | Charlie Wang | 48.23 | 9 | B Min | BB: 47.69 (+0.54s | 1.1%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 175 | 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 | |
| 176 | Gavin Yang | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 177 | 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 | |
| 178 | Robert Kolesnik | 48.33 | 10 | B Min | BB: 47.69 (+0.64s | 1.3%) | Bulldog Swim Club | 03/28/2026 | LAMV C B A+ Meet | |
| 179 | Zixin Cheng | 48.35 | 9 | B Min | BB: 47.69 (+0.66s | 1.4%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 180 | Adam Alkhayru | 48.37 | 9 | B Min | BB: 47.69 (+0.68s | 1.4%) | Reno Aquatic Club | 03/14/2026 | 2026 NNA AGO | |
| 181 | Noah Wu | 48.37 | 10 | B Min | BB: 47.69 (+0.68s | 1.4%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | |
| 182 | Oliver Morrison | 48.38 | 10 | B Min | BB: 47.69 (+0.69s | 1.4%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 183 | Thomas Cooke | 48.39 | 9 | B Min | BB: 47.69 (+0.70s | 1.4%) | Aptos Cabrillo Swim Club | 11/15/2024 | MBSC GSMY Z1S Race To AGC C B A+ | |
| 184 | Ethan Li | 48.42 | 10 | B Min | BB: 47.69 (+0.73s | 1.5%) | Los Altos Mountain View Aquati | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 185 | Caleb Gray | 48.46 | 8 | B Min | BB: 47.69 (+0.77s | 1.6%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 186 | James Budge | 48.50 | 10 | B Min | BB: 47.69 (+0.81s | 1.7%) | Montclair Swim Team | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 187 | Timothy Kado | 48.53 | 8 | B Min | BB: 47.69 (+0.84s | 1.7%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 188 | Brady Lindauer | 48.57 | 10 | B Min | BB: 47.69 (+0.88s | 1.8%) | Unattached | 10/25/2025 | 2025 SUNN Fall Classic | |
| 189 | Lucas Li | 48.63 | 9 | B Min | BB: 47.69 (+0.94s | 1.9%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 190 | Maximilian Zhou | 48.68 | 9 | B Min | BB: 47.69 (+0.99s | 2.0%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 191 | Daniel Khait | 48.69 | 10 | B Min | BB: 47.69 (+1.00s | 2.1%) | Bay Club Santa Clara Dolphins | 02/28/2026 | Swim South Bay | |
| 192 | Marcus Zhu | 48.71 | 10 | B Min | BB: 47.69 (+1.02s | 2.1%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 193 | Caleb Nguyen | 48.72 | 10 | B Min | BB: 47.69 (+1.03s | 2.1%) | East Bay Silver Dolphins | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 194 | Zimo Xu | 48.76 | 10 | B Min | BB: 47.69 (+1.07s | 2.2%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 195 | Andy Yu | 48.78 | 9 | B Min | BB: 47.69 (+1.09s | 2.2%) | Burlingame Aquatics | 03/07/2026 | BAC Race To AGCs | |
| 196 | Ethan Gao | 48.82 | 9 | B Min | BB: 47.69 (+1.13s | 2.3%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 197 | Mason Suniega | 48.84 | 10 | B Min | BB: 47.69 (+1.15s | 2.4%) | Fog City Hammerheads | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 198 | Jack Willey | 48.84 | 10 | B Min | BB: 47.69 (+1.15s | 2.4%) | Almaden Riptide | 10/25/2025 | GGST Spooktacular 2025 | |
| 199 | Jake Gehlert | 48.85 | 9 | B Min | BB: 47.69 (+1.16s | 2.4%) | Piedmont Swim Team | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 200 | Stanislaw Gruszka | 48.88 | 10 | B Min | BB: 47.69 (+1.19s | 2.4%) | Walnut Creek Aquabears | 07/26/2025 | Zone 2 Summer 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.