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 | Daniel Kalinovski | 47.93 | 10 | B Min | BB: 47.69 (+0.24s | 0.5%) | Otter Swim Club | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 202 | 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 | |
| 203 | Ryan Koh | 48.02 | 10 | B Min | BB: 47.69 (+0.33s | 0.7%) | Quicksilver Swimming | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | |
| 204 | Marco Cao | 48.06 | 10 | B Min | BB: 47.69 (+0.37s | 0.8%) | Palo Alto Stanford Aquatics | 10/25/2025 | TYR BAC SPOOKY FALL CLASSIC | |
| 205 | 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 | |
| 206 | Thomas Sedano | 48.11 | 8 | B Min | BB: 47.69 (+0.42s | 0.9%) | Monterey Bay Swim Club | 02/14/2025 | 2025 CCS SCY AGC | |
| 207 | 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 | |
| 208 | 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 | |
| 209 | Hugo Chian | 48.18 | 11 | B Min | BB: 47.69 (+0.49s | 1.0%) | The Olympic Club | 12/06/2025 | Neptune Swimming Swim Like The Dickens | |
| 210 | Fedor Evstigneev | 48.20 | 8 | B Min | BB: 47.69 (+0.51s | 1.1%) | Santa Clara Swim Club | 09/27/2025 | 2025 MAC Season Kick Off | |
| 211 | 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 | |
| 212 | Bruce Asmega | 48.34 | 10 | B Min | BB: 47.69 (+0.65s | 1.3%) | Pacifica Sea Lions | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 213 | 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+ | |
| 214 | Harrison Tian | 48.47 | 9 | B Min | BB: 47.69 (+0.78s | 1.6%) | San Ramon Valley Aquatics | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 215 | Joon Cha | 48.55 | 9 | B Min | BB: 47.69 (+0.86s | 1.8%) | Sunnyvale Swim Club | 10/25/2025 | 2025 SUNN Fall Classic | |
| 216 | George Yu | 48.56 | 9 | B Min | BB: 47.69 (+0.87s | 1.8%) | Santa Clara Swim Club | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 217 | 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 | |
| 218 | 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 | |
| 219 | Brady Lindauer | 48.57 | 10 | B Min | BB: 47.69 (+0.88s | 1.8%) | Unattached | 10/25/2025 | 2025 SUNN Fall Classic | |
| 220 | Evan Doong | 48.61 | 9 | B Min | BB: 47.69 (+0.92s | 1.9%) | Sunnyvale Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 221 | Oliver Liu | 48.69 | 10 | B Min | BB: 47.69 (+1.00s | 2.1%) | Alto Swim Club | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 222 | Finnegan Persampieri | 48.73 | 10 | B Min | BB: 47.69 (+1.04s | 2.1%) | Otter Swim Club | 10/25/2025 | 2025 SUNN Fall Classic | |
| 223 | Weston Jaegers | 48.74 | 9 | B Min | BB: 47.69 (+1.05s | 2.2%) | Mlst | 08/02/2024 | High Country Short Course Championship | |
| 224 | Johnathan Wang | 48.75 | 8 | B Min | BB: 47.69 (+1.06s | 2.2%) | Alto Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 225 | Shayan Sarkar | 48.75 | 9 | B Min | BB: 47.69 (+1.06s | 2.2%) | Diablo Aquatics | 07/26/2025 | Zone 2 Summer Championships | |
| 226 | Youssef Mahassine | 48.77 | 10 | B Min | BB: 47.69 (+1.08s | 2.2%) | Walnut Creek Aquabears | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 227 | Grennan Patel | 48.82 | 10 | B Min | BB: 47.69 (+1.13s | 2.3%) | Neptune Swimming | 09/27/2025 | Neptune Swimming Fall Classic | |
| 228 | Jonathan Chen | 48.83 | 8 | B Min | BB: 47.69 (+1.14s | 2.3%) | California Dolphins Swim Team | 07/26/2025 | Zone 2 Summer Championships | |
| 229 | Jack Willey | 48.84 | 9 | B Min | BB: 47.69 (+1.15s | 2.4%) | Almaden Riptide | 10/25/2025 | GGST Spooktacular 2025 | |
| 230 | Sean Tseng | 48.85 | 10 | B Min | BB: 47.69 (+1.16s | 2.4%) | Santa Clara Swim Club | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 231 | Stanislaw Gruszka | 48.88 | 10 | B Min | BB: 47.69 (+1.19s | 2.4%) | Walnut Creek Aquabears | 07/26/2025 | Zone 2 Summer Championships | |
| 232 | Gavin Schwartz | 48.91 | 10 | B Min | BB: 47.69 (+1.22s | 2.5%) | North Bay Aquatics | 02/14/2025 | 33rd Annual Lost Dutchman Invitational | |
| 233 | Ethan Valdez | 48.94 | 10 | B Min | BB: 47.69 (+1.25s | 2.6%) | Bay Club Panthers | 01/25/2025 | Z1N SC Championship | |
| 234 | 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 | |
| 235 | Oliver Morrison | 49.01 | 10 | B Min | BB: 47.69 (+1.32s | 2.7%) | Palo Alto Stanford Aquatics | 12/04/2025 | 2025 Holiday Swim Festival | |
| 236 | Sebastian Bagga | 49.02 | 10 | B Min | BB: 47.69 (+1.33s | 2.7%) | South Valley Makos | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 237 | 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 | |
| 238 | Toma Blagojevic | 49.08 | 10 | B Min | BB: 47.69 (+1.39s | 2.8%) | Albany Armada Aquatics | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 239 | Caleb Nguyen | 49.08 | 10 | B Min | BB: 47.69 (+1.39s | 2.8%) | East Bay Silver Dolphins | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 240 | Penghao Yu | 49.10 | 8 | B Min | BB: 47.69 (+1.41s | 2.9%) | Palo Alto Stanford Aquatics | 07/21/2024 | 2024 PASA Summer Palooza | |
| 241 | Yixuan Zhu | 49.13 | 9 | B Min | BB: 47.69 (+1.44s | 2.9%) | Pleasanton Seahawks | 03/22/2025 | 2025 3 22 CDST SC C B BB+ Meet | |
| 242 | Bennett Wheeler | 49.18 | 10 | B Min | BB: 47.69 (+1.49s | 3.0%) | Unattached | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 243 | Caden Ye | 49.24 | 10 | B Min | BB: 47.69 (+1.55s | 3.1%) | Santa Clara Swim Club | 10/25/2025 | GGST Spooktacular 2025 | |
| 244 | 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 | |
| 245 | Cameron Bantz | 49.26 | 8 | B Min | BB: 47.69 (+1.57s | 3.2%) | Crow Canyon Sharks | 09/28/2024 | Orinda Aquatics SC C B BB+ Meet | |
| 246 | 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 | |
| 247 | Brendan Ma | 49.30 | 9 | B Min | BB: 47.69 (+1.61s | 3.3%) | Orinda Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 248 | Aaron Littlefield | 49.34 | 10 | B Min | BB: 47.69 (+1.65s | 3.3%) | Walnut Creek Aquabears | 03/01/2025 | Pac Swim SC B BB+ Last Chance Hosted By TERA | |
| 249 | Mehmet Yigitbasi | 49.35 | 10 | B Min | BB: 47.69 (+1.66s | 3.4%) | Santa Clara Swim Club | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 250 | Brayden Nguyen | 49.38 | 9 | B Min | BB: 47.69 (+1.69s | 3.4%) | San Jose Goosemonkeys | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
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.