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 | 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 | |
| 202 | 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 | |
| 203 | Adam Alkhayru | 48.37 | 9 | B Min | BB: 47.69 (+0.68s | 1.4%) | Reno Aquatic Club | 03/14/2026 | 2026 NNA AGO | |
| 204 | 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 | |
| 205 | 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 | |
| 206 | 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+ | |
| 207 | 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 | |
| 208 | Caleb Gray | 48.46 | 8 | B Min | BB: 47.69 (+0.77s | 1.6%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 209 | 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 | |
| 210 | 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 | |
| 211 | Brady Lindauer | 48.57 | 10 | B Min | BB: 47.69 (+0.88s | 1.8%) | Unattached | 10/25/2025 | 2025 SUNN Fall Classic | |
| 212 | Lucas Li | 48.63 | 8 | B Min | BB: 47.69 (+0.94s | 1.9%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 213 | Maximilian Zhou | 48.68 | 9 | B Min | BB: 47.69 (+0.99s | 2.0%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 214 | 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 | |
| 215 | 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 | |
| 216 | 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 | |
| 217 | 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 | |
| 218 | Andy Yu | 48.78 | 9 | B Min | BB: 47.69 (+1.09s | 2.2%) | Burlingame Aquatics | 03/07/2026 | BAC Race To AGCs | |
| 219 | 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+ | |
| 220 | 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 | |
| 221 | Jack Willey | 48.84 | 10 | B Min | BB: 47.69 (+1.15s | 2.4%) | Almaden Riptide | 10/25/2025 | GGST Spooktacular 2025 | |
| 222 | 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+ | |
| 223 | Stanislaw Gruszka | 48.88 | 10 | B Min | BB: 47.69 (+1.19s | 2.4%) | Walnut Creek Aquabears | 07/26/2025 | Zone 2 Summer Championships | |
| 224 | Aaron Xue | 48.91 | 9 | B Min | BB: 47.69 (+1.22s | 2.5%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 225 | Saul Guevara | 48.92 | 8 | B Min | BB: 47.69 (+1.23s | 2.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 226 | 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 | |
| 227 | 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 | |
| 228 | Greyson Thach | 48.99 | 8 | B Min | BB: 47.69 (+1.30s | 2.7%) | Oakland Undercurrent Swim Team | 03/14/2026 | 2026 NNA AGO | |
| 229 | Kyle Cheung | 49.01 | 10 | B Min | BB: 47.69 (+1.32s | 2.7%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 230 | Jasper Yan | 49.05 | 7 | B Min | BB: 47.69 (+1.36s | 2.8%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 231 | Arwin Safaee | 49.06 | 10 | B Min | BB: 47.69 (+1.37s | 2.8%) | Alto Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 232 | Alexander Warren Moy | 49.07 | 9 | B Min | BB: 47.69 (+1.38s | 2.8%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 233 | Abayan Prithviraj | 49.08 | 10 | B Min | BB: 47.69 (+1.39s | 2.8%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 234 | Anthony Pham | 49.10 | 10 | B Min | BB: 47.69 (+1.41s | 2.9%) | South Valley Makos | 03/28/2026 | Swim South Bay | |
| 235 | Bennett Wheeler | 49.18 | 10 | B Min | BB: 47.69 (+1.49s | 3.0%) | Unattached | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 236 | Reed Oberman | 49.19 | 9 | B Min | BB: 47.69 (+1.50s | 3.0%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 237 | Reece Kau | 49.20 | 10 | B Min | BB: 47.69 (+1.51s | 3.1%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 238 | Caden Ye | 49.24 | 10 | B Min | BB: 47.69 (+1.55s | 3.1%) | Santa Clara Swim Club | 10/25/2025 | GGST Spooktacular 2025 | |
| 239 | Riaan Chandak | 49.26 | 10 | B Min | BB: 47.69 (+1.57s | 3.2%) | Milpitas Aquatic Club | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 240 | Cameron Bantz | 49.26 | 9 | B Min | BB: 47.69 (+1.57s | 3.2%) | Crow Canyon Sharks | 09/28/2024 | Orinda Aquatics SC C B BB+ Meet | |
| 241 | Elijah Jacobs | 49.27 | 10 | B Min | BB: 47.69 (+1.58s | 3.2%) | Crescent City Swim Club | 10/25/2025 | Superior Aquatics Monster Splash | |
| 242 | Adrian Goo | 49.29 | 10 | B Min | BB: 47.69 (+1.60s | 3.2%) | Walnut Creek Aquabears | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 243 | Jake Lu | 49.30 | 9 | B Min | BB: 47.69 (+1.61s | 3.3%) | Burlingame Aquatics | 03/07/2026 | BAC Race To AGCs | |
| 244 | Alec Henriques | 49.34 | 10 | B Min | BB: 47.69 (+1.65s | 3.3%) | Napa Valley Swim Team | 03/07/2026 | Napa Valley Swim Team Swimming Towards Spring | |
| 245 | Maxen Cao | 49.36 | 9 | B Min | BB: 47.69 (+1.67s | 3.4%) | Otter Swim Club | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 246 | Cameron Lee | 49.42 | 10 | B Min | BB: 47.69 (+1.73s | 3.5%) | Usf Youth Swimming | 07/19/2025 | 2025 DACA SC CBA Meet | |
| 247 | Diego Pisoni | 49.42 | 9 | B Min | BB: 47.69 (+1.73s | 3.5%) | Neptune Swimming | 03/07/2026 | Napa Valley Swim Team Swimming Towards Spring | |
| 248 | Alec Henriques | 49.42 | 10 | B Min | BB: 47.69 (+1.73s | 3.5%) | Napa Valley Swim Team | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 249 | Axel Radstrom | 49.44 | 9 | B Min | BB: 47.69 (+1.75s | 3.5%) | Pacific Coast Marlins | 11/08/2025 | TCA PC November SC C B A+ | |
| 250 | Zackery Vergara | 49.53 | 8 | B Min | BB: 47.69 (+1.84s | 3.7%) | Gilroy Gators Swim Team | 03/28/2026 | Swim South Bay | |
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.