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 | |
|---|---|---|---|---|---|---|---|---|---|
| 201 | Jordan Dimaio | 47.67 | 10 | BB Min | A: 42.09 (+5.58s | 11.7%) | Otter Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 202 | Sachit Swaroop | 47.74 | 10 | B Min | BB: 47.69 (+0.05s | 0.1%) | DeAnza Cupertino Aquatics | 10/25/2025 | 2025 SUNN Fall Classic | |
| 203 | Felix Colburn | 47.78 | 10 | B Min | BB: 47.69 (+0.09s | 0.2%) | Piedmont Swim Team | 05/18/2025 | Montclair 14 Under Short Course Pentathlon | |
| 204 | Joshua Miao | 47.81 | 9 | B Min | BB: 47.69 (+0.12s | 0.3%) | Quicksilver Swimming | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 205 | Zhencheng Xu | 47.81 | 9 | B Min | BB: 47.69 (+0.12s | 0.3%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 206 | Jonathan Chen | 47.82 | 9 | B Min | BB: 47.69 (+0.13s | 0.3%) | California Dolphins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 207 | 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 | |
| 208 | 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 | |
| 209 | Anderson Moy | 47.90 | 10 | B Min | BB: 47.69 (+0.21s | 0.4%) | DeAnza Cupertino Aquatics | 10/25/2025 | 2025 SUNN Fall Classic | |
| 210 | 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 | |
| 211 | Noah Chiu | 47.92 | 10 | B Min | BB: 47.69 (+0.23s | 0.5%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 212 | Kai Mihov | 47.95 | 10 | B Min | BB: 47.69 (+0.26s | 0.5%) | Palo Alto Stanford Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 213 | Henry Moore | 48.00 | 8 | B Min | BB: 47.69 (+0.31s | 0.6%) | Ladera Oaks | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 214 | 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 | |
| 215 | Olivier Thomasson | 48.09 | 10 | B Min | BB: 47.69 (+0.40s | 0.8%) | Montclair Swim Team | 05/18/2025 | Montclair 14 Under Short Course Pentathlon | |
| 216 | Toby Wong | 48.12 | 10 | B Min | BB: 47.69 (+0.43s | 0.9%) | Quicksilver Swimming | 04/26/2025 | Pacific Swimming 10 Under SC Championships | |
| 217 | Kenneth Zhang | 48.17 | 8 | B Min | BB: 47.69 (+0.48s | 1.0%) | Santa Clara Swim Club | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 218 | 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 | |
| 219 | Alexandru Varga | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Terrapins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 220 | Matthew Chen | 48.30 | 10 | B Min | BB: 47.69 (+0.61s | 1.3%) | California Dolphins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 221 | Cole Proescher | 48.30 | 9 | B Min | BB: 47.69 (+0.61s | 1.3%) | Orinda Aquatics | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 222 | Norne Fang | 48.32 | 7 | B Min | BB: 47.69 (+0.63s | 1.3%) | Milpitas Aquatic Club | 09/27/2025 | 2025 MAC Season Kick Off | |
| 223 | Brendan Ma | 48.32 | 9 | B Min | BB: 47.69 (+0.63s | 1.3%) | Orinda Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 224 | 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 | |
| 225 | 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 | |
| 226 | 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 | |
| 227 | Thomas Cooke | 48.39 | 7 | 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+ | |
| 228 | Shayan Sarkar | 48.47 | 9 | B Min | BB: 47.69 (+0.78s | 1.6%) | Diablo Aquatics | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 229 | Caleb Gray | 48.56 | 8 | B Min | BB: 47.69 (+0.87s | 1.8%) | Santa Clara Swim Club | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 230 | Brady Lindauer | 48.57 | 10 | B Min | BB: 47.69 (+0.88s | 1.8%) | Unattached | 10/25/2025 | 2025 SUNN Fall Classic | |
| 231 | Alex Li | 48.57 | 9 | B Min | BB: 47.69 (+0.88s | 1.8%) | DeAnza Cupertino Aquatics | 12/06/2025 | Alto Dec 6 7 CBA | |
| 232 | Samuel Zhou | 48.61 | 9 | B Min | BB: 47.69 (+0.92s | 1.9%) | Bay Club Panthers | 01/10/2026 | BAC Norman Cutler Memorial | |
| 233 | Marek Perzov | 48.67 | 10 | B Min | BB: 47.69 (+0.98s | 2.0%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 234 | Luke Mangoba | 48.68 | 10 | B Min | BB: 47.69 (+0.99s | 2.0%) | Reno Aquatic Club | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 235 | Finnegan Persampieri | 48.68 | 10 | B Min | BB: 47.69 (+0.99s | 2.0%) | Otter Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 236 | 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 | |
| 237 | Patrick Zhang | 48.72 | 10 | B Min | BB: 47.69 (+1.03s | 2.1%) | Palo Alto Stanford Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 238 | Weston Jaegers | 48.74 | 9 | B Min | BB: 47.69 (+1.05s | 2.2%) | Mlst | 08/02/2024 | High Country Short Course Championship | |
| 239 | 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 | |
| 240 | Grennan Patel | 48.82 | 10 | B Min | BB: 47.69 (+1.13s | 2.3%) | Neptune Swimming | 09/27/2025 | Neptune Swimming Fall Classic | |
| 241 | 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 | |
| 242 | Jack Willey | 48.84 | 9 | B Min | BB: 47.69 (+1.15s | 2.4%) | Almaden Riptide | 10/25/2025 | GGST Spooktacular 2025 | |
| 243 | Stanislaw Gruszka | 48.88 | 10 | B Min | BB: 47.69 (+1.19s | 2.4%) | Walnut Creek Aquabears | 07/26/2025 | Zone 2 Summer Championships | |
| 244 | Aaron Xue | 48.94 | 9 | B Min | BB: 47.69 (+1.25s | 2.6%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 245 | Adrian Seto | 48.98 | 9 | B Min | BB: 47.69 (+1.29s | 2.6%) | Palo Alto Stanford Aquatics | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 246 | Brayden Nguyen | 48.98 | 9 | B Min | BB: 47.69 (+1.29s | 2.6%) | San Jose Goosemonkeys | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 247 | Lincoln Matthews | 48.99 | 9 | B Min | BB: 47.69 (+1.30s | 2.7%) | North Bay Aquatics | 02/14/2025 | 33rd Annual Lost Dutchman Invitational | |
| 248 | Sam Beck | 49.01 | 10 | B Min | BB: 47.69 (+1.32s | 2.7%) | Lakeridge Swim Team | 01/16/2026 | 2026 Blizzard Blast Swim Meet | |
| 249 | Kyle Cheung | 49.01 | 9 | B Min | BB: 47.69 (+1.32s | 2.7%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 250 | Gavin Yang | 49.01 | 10 | B Min | BB: 47.69 (+1.32s | 2.7%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
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.