Pacific Swimming Boys 10 & under - 50 Y Back
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 251 | Ethan Zhong | 45.20 | 9 | B Min | BB: 42.89 (+2.31s | 5.1%) | Quicksilver Swimming | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 252 | Bryan Xia | 45.20 | 8 | B Min | BB: 42.89 (+2.31s | 5.1%) | Rockville Montgomery Swim Club | 11/08/2025 | 2025 Autumn Mini Meet | |
| 253 | James Zeng | 45.21 | 10 | B Min | BB: 42.89 (+2.32s | 5.1%) | Pacifica Sea Lions | 09/18/2026 | PSL Pacifica Season Launch CBA+ Meet | |
| 254 | Isaac Han | 45.22 | 8 | B Min | BB: 42.89 (+2.33s | 5.2%) | Sunnyvale Swim Club | 07/25/2026 | 2026 DACA SC CBA Meet | |
| 255 | Noah Attia | 45.28 | 9 | B Min | BB: 42.89 (+2.39s | 5.3%) | Diablo Aquatics | 09/19/2026 | PC LAC C B BB 26 Copied | |
| 256 | Eli Wu | 45.37 | 10 | B Min | BB: 42.89 (+2.48s | 5.5%) | South San Francisco Aquatics | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 257 | Jaechul Jung | 45.40 | 10 | B Min | BB: 42.89 (+2.51s | 5.5%) | Palo Alto Stanford Aquatics | 10/24/2026 | SUNN Fall Classic 2026 | |
| 258 | Nathan Su | 45.42 | 10 | B Min | BB: 42.89 (+2.53s | 5.6%) | DeAnza Cupertino Aquatics | 10/03/2026 | 2026 De Anza Cupertino Aquatics SC CBA Meet | |
| 259 | Andrew Bu | 45.43 | 10 | B Min | BB: 42.89 (+2.54s | 5.6%) | Sunnyvale Swim Club | 10/03/2026 | 2026 De Anza Cupertino Aquatics SC CBA Meet | |
| 260 | Joshua Thomas | 45.49 | 10 | B Min | BB: 42.89 (+2.60s | 5.7%) | Sunnyvale Swim Club | 10/24/2026 | SUNN Fall Classic 2026 | |
| 261 | Arthur Cahoy | 45.51 | 9 | B Min | BB: 42.89 (+2.62s | 5.8%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 262 | Ezekiel Techera Gartner | 45.51 | 10 | B Min | BB: 42.89 (+2.62s | 5.8%) | Pacifica Sea Lions | 09/18/2026 | PSL Pacifica Season Launch CBA+ Meet | |
| 263 | Jamie Russell | 45.59 | 9 | B Min | BB: 42.89 (+2.70s | 5.9%) | Santa Clara Swim Club | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | |
| 264 | Jack Herson | 45.60 | 10 | B Min | BB: 42.89 (+2.71s | 5.9%) | Albany Armada Aquatics | 07/10/2026 | Redwood Empire Swim League Championship | |
| 265 | Micah Chiu | 45.61 | 9 | B Min | BB: 42.89 (+2.72s | 6.0%) | Palo Alto Stanford Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 266 | Maxx Yu | 45.63 | 10 | B Min | BB: 42.89 (+2.74s | 6.0%) | Burlingame Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 267 | Parker Weberg | 45.70 | 10 | B Min | BB: 42.89 (+2.81s | 6.1%) | Alameda Gators | 03/22/2025 | Albany Armada Aquatics SC C B BB+ | |
| 268 | Advent Chang | 45.71 | 10 | B Min | BB: 42.89 (+2.82s | 6.2%) | Otter Swim Club | 07/25/2026 | 2026 DACA SC CBA Meet | |
| 269 | Will Wu | 45.73 | 10 | B Min | BB: 42.89 (+2.84s | 6.2%) | Unattached | 10/16/2026 | All Treats No Tricks Candy Meet Block Party | |
| 270 | Colson Mou | 45.78 | 9 | B Min | BB: 42.89 (+2.89s | 6.3%) | South San Francisco Aquatics | 09/18/2026 | PSL Pacifica Season Launch CBA+ Meet | |
| 271 | Maximilian Zhou | 45.81 | 9 | B Min | BB: 42.89 (+2.92s | 6.4%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 272 | Adrian Seto | 45.83 | 9 | B Min | BB: 42.89 (+2.94s | 6.4%) | Palo Alto Stanford Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 273 | Owen Mast | 45.84 | 9 | B Min | BB: 42.89 (+2.95s | 6.4%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 274 | Jonah Lin | 45.84 | 8 | B Min | BB: 42.89 (+2.95s | 6.4%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 275 | Milan Varga | 45.85 | 6 | B Min | BB: 42.89 (+2.96s | 6.5%) | Terrapins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 276 | Sebastian Alfonso | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | Walnut Creek Aquabears | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 277 | Piradon Pukrittayakamee | 45.94 | 9 | B Min | BB: 42.89 (+3.05s | 6.6%) | California Dolphins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 278 | Liam Chen | 45.97 | 9 | B Min | BB: 42.89 (+3.08s | 6.7%) | San Ramon Valley Aquatics | 07/25/2026 | Zone 2 Summer Championships | |
| 279 | Amaru Cabra | 46.01 | 10 | B Min | BB: 42.89 (+3.12s | 6.8%) | Richmond Sailfish | 09/19/2026 | East Bay Silver Dolphins Short Course C B BB+ | |
| 280 | Nixon Lo | 46.03 | 9 | B Min | BB: 42.89 (+3.14s | 6.8%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 281 | Henry Huang | 46.06 | 10 | B Min | BB: 42.89 (+3.17s | 6.9%) | Daly City Dolphins | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 282 | Grayson Julien | 46.10 | 10 | B Min | BB: 42.89 (+3.21s | 7.0%) | South Valley Makos | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 283 | Noah Hunter | 46.12 | 9 | B Min | BB: 42.89 (+3.23s | 7.0%) | Quicksilver Swimming | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 284 | Jasper Yan | 46.16 | 8 | B Min | BB: 42.89 (+3.27s | 7.1%) | California Dolphins Swim Team | 10/18/2025 | PC CDST SC C B BB+ | |
| 285 | Nathaniel Min | 46.18 | 10 | B Min | BB: 42.89 (+3.29s | 7.1%) | California Dolphins Swim Team | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 286 | Ethan Gao | 46.18 | 10 | B Min | BB: 42.89 (+3.29s | 7.1%) | California Dolphins Swim Team | 03/22/2025 | 2025 3 22 CDST SC C B BB+ Meet | |
| 287 | Dylan Wang | 46.20 | 8 | B Min | BB: 42.89 (+3.31s | 7.2%) | Palo Alto Stanford Aquatics | 10/24/2026 | SUNN Fall Classic 2026 | |
| 288 | Cimon Bunuan | 46.21 | 9 | B Min | BB: 42.89 (+3.32s | 7.2%) | South San Francisco Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 289 | Ernest Gu | 46.25 | 8 | B Min | BB: 42.89 (+3.36s | 7.3%) | Bay Club Panthers | 01/10/2026 | BAC Norman Cutler Memorial | |
| 290 | Skye Gautschi | 46.26 | 9 | B Min | BB: 42.89 (+3.37s | 7.3%) | Valley Splash | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 291 | Elliott Lee Chan Kam | 46.28 | 10 | B Min | BB: 42.89 (+3.39s | 7.3%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 292 | Ryan Ye | 46.30 | 10 | B Min | BB: 42.89 (+3.41s | 7.4%) | Walnut Creek Aquabears | 07/25/2026 | Zone 2 Summer Championships | |
| 293 | Andrew Buenrostro | 46.30 | 10 | B Min | BB: 42.89 (+3.41s | 7.4%) | Palo Alto Stanford Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 294 | Minchan Lee | 46.32 | 10 | B Min | BB: 42.89 (+3.43s | 7.4%) | Reno Aquatic Club | 10/16/2026 | 2026 KING OF THE HILL CHALLENGE | |
| 295 | Lucas Estepa | 46.38 | 10 | B Min | BB: 42.89 (+3.49s | 7.5%) | Lakeridge Swim Team | 02/07/2025 | 2025 Valentines Day Age Group Open | |
| 296 | Nathan Wang | 46.38 | 10 | B Min | BB: 42.89 (+3.49s | 7.5%) | Sunnyvale Swim Club | 09/27/2026 | SUNN Blue And Gold Intrasquad Meet | |
| 297 | Liam Jones | 46.40 | 9 | B Min | BB: 42.89 (+3.51s | 7.6%) | North Bay Aquatics | 09/20/2025 | WANV CBA+ Endless Summer Meet | |
| 298 | Keo Strong | 46.44 | 9 | B Min | BB: 42.89 (+3.55s | 7.6%) | Piedmont Swim Team | 05/29/2026 | Piedmont Swim Team Club Championships | |
| 299 | Elson Tian | 46.47 | 9 | B Min | BB: 42.89 (+3.58s | 7.7%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 300 | Yuma Suzuki | 46.47 | 8 | B Min | BB: 42.89 (+3.58s | 7.7%) | Palo Alto Stanford Aquatics | 07/26/2026 | 2026 PASA Summer Palooza | |
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.