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 | |
|---|---|---|---|---|---|---|---|---|---|
| 201 | Sebastian Lum-Langston | 46.33 | 10 | B Min | BB: 42.89 (+3.44s | 7.4%) | The Olympic Club | 07/18/2025 | 2025 Redwood Empire Swim League Championship | |
| 202 | Wesley Zhang | 46.36 | 9 | B Min | BB: 42.89 (+3.47s | 7.5%) | Santa Clara Swim Club | 03/01/2025 | Santa Clara Swim Club Race To AG Champs | |
| 203 | Noah Wu | 46.37 | 9 | B Min | BB: 42.89 (+3.48s | 7.5%) | Milpitas Aquatic Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 204 | Neo Perera | 46.38 | 8 | B Min | BB: 42.89 (+3.49s | 7.5%) | Los Altos Mountain View Aquati | 08/02/2024 | DACA SCY Invitational | |
| 205 | Erdem Tokuz | 46.38 | 10 | B Min | BB: 42.89 (+3.49s | 7.5%) | Santa Clara Swim Club | 02/08/2025 | Swim South Bay | |
| 206 | Yavin Dantra | 46.38 | 8 | B Min | BB: 42.89 (+3.49s | 7.5%) | San Ramon Valley Aquatics | 03/22/2025 | 2025 3 22 CDST SC C B BB+ Meet | |
| 207 | Joshua Miao | 46.39 | 9 | B Min | BB: 42.89 (+3.50s | 7.5%) | Quicksilver Swimming | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 208 | River Arakawa | 46.53 | 8 | B Min | BB: 42.89 (+3.64s | 7.8%) | Sleepy Hollow | 11/12/2023 | OAPB Fall Jamboree | |
| 209 | Kirill Leontyev | 46.56 | 10 | B Min | BB: 42.89 (+3.67s | 7.9%) | Daly City Dolphins | 02/22/2025 | BAC C B A Meet | |
| 210 | Solomon Fox | 46.56 | 6 | B Min | BB: 42.89 (+3.67s | 7.9%) | Burlingame Aquatics | 10/29/2022 | Burlingame Aquatic Club SCY C/B/A+ Meet | |
| 211 | Sebastian Bagga | 46.57 | 9 | B Min | BB: 42.89 (+3.68s | 7.9%) | South Valley Makos | 07/19/2024 | CVAL SCY T&F Championships | |
| 212 | Chris Nilson | 46.61 | 10 | B Min | BB: 42.89 (+3.72s | 8.0%) | Los Altos Mountain View Aquati | 03/22/2025 | 2025 Los Altos Mountain View SC CBA Meet | |
| 213 | David Rivera | 46.64 | 9 | B Min | BB: 42.89 (+3.75s | 8.0%) | Almaden Riptide | 09/14/2024 | WANV Endless Summer Classic C/B/A+ Meet | |
| 214 | Yunus Mukhamadieva | 46.72 | 9 | B Min | BB: 42.89 (+3.83s | 8.2%) | Brentwood Seawolves | 03/01/2025 | Pac Swim SC B BB+ Last Chance Hosted By TERA | |
| 215 | Cruz Varuris-Verduzco | 46.77 | 8 | B Min | BB: 42.89 (+3.88s | 8.3%) | Quicksilver Swimming | 03/18/2023 | Z1S Last Chance FW Meet (host: QSS-SC) | |
| 216 | Leo Miyamoto | 46.78 | 9 | B Min | BB: 42.89 (+3.89s | 8.3%) | Napa Valley Swim Team | 02/22/2025 | NVST Swimming Into Spring | |
| 217 | Spencer Chong | 46.78 | 10 | B Min | BB: 42.89 (+3.89s | 8.3%) | Sunnyvale Swim Club | 03/22/2025 | 2025 Los Altos Mountain View SC CBA Meet | |
| 218 | Leo Liao | 46.85 | 9 | B Min | BB: 42.89 (+3.96s | 8.5%) | Alto Swim Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 219 | Alexander Garcia | 46.88 | 10 | B Min | BB: 42.89 (+3.99s | 8.5%) | Albany Armada Aquatics | 07/18/2025 | 2025 Redwood Empire Swim League Championship | |
| 220 | Alexander Li | 46.91 | 10 | B Min | BB: 42.89 (+4.02s | 8.6%) | Santa Clara Swim Club | 03/01/2025 | Santa Clara Swim Club Race To AG Champs | |
| 221 | Gavin Yang | 46.94 | 9 | B Min | BB: 42.89 (+4.05s | 8.6%) | Alto Swim Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 222 | Johnathan Wang | 46.96 | 8 | B Min | BB: 42.89 (+4.07s | 8.7%) | Alto Swim Club | 02/01/2025 | Alto Swim Club Valentine Classic | |
| 223 | Jacob Chen | 46.99 | 8 | B Min | BB: 42.89 (+4.10s | 8.7%) | Alto Swim Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 224 | Dylan Tian | 47.06 | 7 | B Min | BB: 42.89 (+4.17s | 8.9%) | Santa Clara Swim Club | 06/14/2025 | SCSC Blue Gold Block Party Meet June | |
| 225 | Charles Zheng | 47.09 | 8 | B Min | BB: 42.89 (+4.20s | 8.9%) | California Dolphins Swim Team | 03/22/2025 | 2025 3 22 CDST SC C B BB+ Meet | |
| 226 | SJ Park | 47.11 | 10 | B Min | BB: 42.89 (+4.22s | 9.0%) | Santa Clara Swim Club | 03/01/2025 | Santa Clara Swim Club Race To AG Champs | |
| 227 | Atticus Walker | 47.13 | 9 | B Min | BB: 42.89 (+4.24s | 9.0%) | Palo Alto Stanford Aquatics | 11/09/2024 | Pacifica Sea Lions SCY C/B/A+ Meet | |
| 228 | Daniel Rumiantcev | 47.13 | 8 | B Min | BB: 42.89 (+4.24s | 9.0%) | Sunnyvale Swim Club | 10/05/2024 | DeAnza Cupertino Aquatics SCY C/B/A+ Meet | |
| 229 | George Yu | 47.17 | 8 | B Min | BB: 42.89 (+4.28s | 9.1%) | Santa Clara Swim Club | 09/14/2024 | Milpitas Aquatic Club SCY CBA+ Meet | |
| 230 | Patrick Li | 47.17 | 10 | B Min | BB: 42.89 (+4.28s | 9.1%) | Santa Clara Swim Club | 03/01/2025 | Santa Clara Swim Club Race To AG Champs | |
| 231 | Mason Cao | 47.22 | 9 | B Min | BB: 42.89 (+4.33s | 9.2%) | Santa Clara Swim Club | 10/04/2024 | SCSC SCY CBA+ Meet | |
| 232 | Noah Huyen | 47.23 | 8 | B Min | BB: 42.89 (+4.34s | 9.2%) | Daly City Dolphins | 04/26/2025 | Pacific Swimming 10 Under SC Championships | |
| 233 | Kai Mihov | 47.30 | 9 | B Min | BB: 42.89 (+4.41s | 9.3%) | Palo Alto Stanford Aquatics | 03/22/2025 | 2025 Los Altos Mountain View SC CBA Meet | |
| 234 | Owen Hayes | 47.32 | 9 | B Min | BB: 42.89 (+4.43s | 9.4%) | Hills Hurricane Swimming | 07/18/2025 | 2025 Redwood Empire Swim League Championship | |
| 235 | Harry Zang | 47.33 | 10 | B Min | BB: 42.89 (+4.44s | 9.4%) | Otter Swim Club | 02/22/2025 | BAC C B A Meet | |
| 236 | Andrew Bu | 47.34 | 9 | B Min | BB: 42.89 (+4.45s | 9.4%) | Alto Swim Club | 01/11/2025 | Burlingame Aquatic Club C/B/A+ SCY Meet | |
| 237 | Ronan MurdockPerriera | 47.37 | 8 | B Min | BB: 42.89 (+4.48s | 9.5%) | AC Swim Club | 02/07/2025 | 2025 PSL Super Finals Invitational | |
| 238 | Avery Chen | 47.37 | 9 | B Min | BB: 42.89 (+4.48s | 9.5%) | Monterey Bay Swim Club | 10/25/2024 | GGST SCY Spooktacular CBA+ Meet | |
| 239 | Mark Babcock | 47.40 | 10 | B Min | BB: 42.89 (+4.51s | 9.5%) | Neptune Swimming | 03/01/2025 | VJO March Mayhem C B A+ 2025 | |
| 240 | Amir Toleubek | 47.46 | 8 | B Min | BB: 42.89 (+4.57s | 9.6%) | Alto Swim Club | 02/24/2024 | Burlingame Aquatic Club C/B/A+ SCY Meet | |
| 241 | Aymes Shi | 47.46 | 8 | B Min | BB: 42.89 (+4.57s | 9.6%) | Quicksilver Swimming | 03/22/2024 | Milpitas Aquatic Club SCY CBA+ Meet | |
| 242 | Alejandro Rangel | 47.49 | 10 | B Min | BB: 42.89 (+4.60s | 9.7%) | Quicksilver Swimming | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 243 | Aiden Tam | 47.54 | 10 | B Min | BB: 42.89 (+4.65s | 9.8%) | Sunnyvale Swim Club | 03/22/2025 | 2025 Los Altos Mountain View SC CBA Meet | |
| 244 | Vihaan Menon | 47.54 | 10 | B Min | BB: 42.89 (+4.65s | 9.8%) | Milpitas Aquatic Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 245 | Zhouhan Yang | 47.62 | 9 | B Min | BB: 42.89 (+4.73s | 9.9%) | Alto Swim Club | 02/01/2025 | Alto Swim Club Valentine Classic | |
| 246 | Logan Feally | 47.64 | 10 | B Min | BB: 42.89 (+4.75s | 10.0%) | Livermore AquaCowboys | 12/14/2024 | Richard Thornton Memorial Swim Meet (host: SRVA) | |
| 247 | Jaiden Yap | 47.67 | 9 | B Min | BB: 42.89 (+4.78s | 10.0%) | Santa Clara Swim Club | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 248 | Connor Welch | 47.67 | 8 | B Min | BB: 42.89 (+4.78s | 10.0%) | Sleepy Hollow | 11/12/2023 | OAPB Fall Jamboree | |
| 249 | Miles Wang | 47.72 | 7 | B Min | BB: 42.89 (+4.83s | 10.1%) | Crow Canyon Sharks | 11/02/2024 | San Ramon Valley Aquatics SCY C/B/BB+ Meet | |
| 250 | Tyler Siu | 47.80 | 9 | B Min | BB: 42.89 (+4.91s | 10.3%) | El Cerrito Gators | 03/22/2025 | Albany Armada Aquatics SC C B BB+ | |
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.