Western Zone Zone Boys 10 & under - 50 M Breast
These rankings show the swimmers' placement within their Zone.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 151 | Ray Yu | 50.18 | 9 | BB Min | A: 47.89 (+2.29s | 4.6%) | Aquazot Swim Club | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 152 | Alex Deng | 50.24 | 10 | BB Min | A: 47.89 (+2.35s | 4.7%) | Issaquah Swim Team | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 153 | Jensen Huang | 50.30 | 9 | BB Min | A: 47.89 (+2.41s | 4.8%) | Arcadia Riptides Swim Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 154 | Parker Sampson | 50.30 | 9 | BB Min | A: 47.89 (+2.41s | 4.8%) | Denver Swim Academy | 05/17/2025 | 2025 CO Hilltopper Invite | |
| 155 | Gustavo Luna | 50.30 | 10 | BB Min | A: 47.89 (+2.41s | 4.8%) | Paseo Aquatics Swim Team | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 156 | Mikhail Pratt | 50.31 | 9 | BB Min | A: 47.89 (+2.42s | 4.8%) | Alpha Aquatics | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 157 | Alexander Rao | 50.31 | 10 | BB Min | A: 47.89 (+2.42s | 4.8%) | Eastside Aquatic Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 158 | Ashwin Tiwari | 50.38 | 8 | BB Min | A: 47.89 (+2.49s | 4.9%) | Olympic Cascade Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 159 | Jarvis Qu | 50.39 | 9 | BB Min | A: 47.89 (+2.50s | 5.0%) | Mission Viejo Nadadores | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 160 | Declan Sederholm | 50.40 | 9 | BB Min | A: 47.89 (+2.51s | 5.0%) | Hilltop Aquatic Swim Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 161 | Jaxon Despain | 50.41 | 8 | BB Min | A: 47.89 (+2.52s | 5.0%) | Denver Swim Academy | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 162 | Divyanshu Bista | 50.44 | 10 | BB Min | A: 47.89 (+2.55s | 5.1%) | Apex | 06/20/2025 | 72nd Annual Ted Walker Invitational | |
| 163 | Max Ong | 50.52 | 9 | BB Min | A: 47.89 (+2.63s | 5.2%) | Pacific Swim | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 164 | Yupeng Wang | 50.54 | 9 | BB Min | A: 47.89 (+2.65s | 5.2%) | Monterey Park Manta Rays | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 165 | Erik Hai | 50.55 | 9 | BB Min | A: 47.89 (+2.66s | 5.3%) | The Claremont Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 166 | Elijah Hutagalung | 50.57 | 9 | BB Min | A: 47.89 (+2.68s | 5.3%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 167 | Chancellor Scovel | 50.57 | 10 | BB Min | A: 47.89 (+2.68s | 5.3%) | South Orange County Aquatics | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 168 | Luka McGrath | 50.61 | 9 | BB Min | A: 47.89 (+2.72s | 5.4%) | Multnomah Athletic Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 169 | Oliver Gist-Pitts | 50.63 | 9 | BB Min | A: 47.89 (+2.74s | 5.4%) | Boulder Swim Team | 06/27/2025 | 2025 CO Zone 2 VMAC Meet | |
| 170 | Luke Xu | 50.67 | 9 | BB Min | A: 47.89 (+2.78s | 5.5%) | California Dolphins Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 171 | Thomas Cooke | 50.71 | 8 | BB Min | A: 47.89 (+2.82s | 5.6%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 172 | Nikoloz Zhorzholiani | 50.71 | 9 | BB Min | A: 47.89 (+2.82s | 5.6%) | Seattle Metropolitan Aquatic C | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 173 | Mason Kim | 50.72 | 10 | BB Min | A: 47.89 (+2.83s | 5.6%) | Maywood Sparks Swim Team | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 174 | Alan Li | 50.74 | 10 | BB Min | A: 47.89 (+2.85s | 5.6%) | Tualatin Hills Swim Club | 05/02/2025 | 2025 THSC Spring Invitational | |
| 175 | Ryan Xie | 50.76 | 9 | BB Min | A: 47.89 (+2.87s | 5.7%) | Cascadia Swimming | 11/01/2025 | Oregon City Fall Open 2025 | |
| 176 | Lok Zhang | 50.92 | 9 | BB Min | A: 47.89 (+3.03s | 6.0%) | Pacific Dragons Swim Team | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 177 | Mateo Sison | 50.97 | 9 | BB Min | A: 47.89 (+3.08s | 6.0%) | San Ramon Valley Aquatics | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 178 | Gary Stoll | 51.01 | 10 | BB Min | A: 47.89 (+3.12s | 6.1%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 179 | Phillippe Choi | 51.03 | 9 | BB Min | A: 47.89 (+3.14s | 6.2%) | Klg Sports Swim Team | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 180 | Emmett Curry | 51.04 | 9 | BB Min | A: 47.89 (+3.15s | 6.2%) | Seattle Metropolitan Aquatic C | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 181 | Logan Snodgrass | 51.05 | 9 | BB Min | A: 47.89 (+3.16s | 6.2%) | Denver Swim Academy | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 182 | Demian Jarmy | 51.06 | 9 | BB Min | A: 47.89 (+3.17s | 6.2%) | Pleasanton Seahawks | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 183 | Koa Tejwani | 51.10 | 8 | BB Min | A: 47.89 (+3.21s | 6.3%) | Jcc Waves | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 184 | Gavin Song | 51.11 | 10 | BB Min | A: 47.89 (+3.22s | 6.3%) | Brea Aquatics | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 185 | Haolin Chen | 51.12 | 9 | BB Min | A: 47.89 (+3.23s | 6.3%) | Pacific Dragons Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 186 | Bryce Alpert | 51.15 | 8 | BB Min | A: 47.89 (+3.26s | 6.4%) | Aquazot Swim Club | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 187 | Matthew Ko | 51.17 | 9 | BB Min | A: 47.89 (+3.28s | 6.4%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 188 | Thomas Halford | 51.21 | 9 | BB Min | A: 47.89 (+3.32s | 6.5%) | Pikes Peak Athletics | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 189 | Chukwuma Chiedozi | 51.22 | 10 | BB Min | A: 47.89 (+3.33s | 6.5%) | Rogue Rapids | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 190 | Steven Wang | 51.23 | 10 | BB Min | A: 47.89 (+3.34s | 6.5%) | Wave Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 191 | Riccardo Sardena | 51.25 | 8 | BB Min | A: 47.89 (+3.36s | 6.6%) | Swim Team of Placentia | 07/25/2024 | 2024 CA SCS BREA Summer A G Champs | |
| 192 | Ethan Kang | 51.25 | 10 | BB Min | A: 47.89 (+3.36s | 6.6%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 193 | Winston Chase | 51.32 | 9 | BB Min | A: 47.89 (+3.43s | 6.7%) | Utah Valley Aquatics | 05/08/2025 | 2025 HAST Janet Oles LC Classic | |
| 194 | Leo Ferrante | 51.33 | 10 | BB Min | A: 47.89 (+3.44s | 6.7%) | Palo Alto Stanford Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 195 | Joshua Chen | 51.36 | 10 | BB Min | A: 47.89 (+3.47s | 6.8%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 196 | Arian Gavriljuk | 51.38 | 10 | BB Min | A: 47.89 (+3.49s | 6.8%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 197 | Emmett Adams | 51.38 | 10 | BB Min | A: 47.89 (+3.49s | 6.8%) | Reno Aquatic Club | 06/20/2025 | Reno Aquatic Club Gamble | |
| 198 | Sebastian McNary | 51.39 | 9 | BB Min | A: 47.89 (+3.50s | 6.8%) | Tiger Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 199 | Conrad Shwe | 51.41 | 8 | BB Min | A: 47.89 (+3.52s | 6.8%) | Clovis Swim Club | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 200 | Mason Sovich | 51.47 | 8 | BB Min | A: 47.89 (+3.58s | 7.0%) | Olympic Cascade Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
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.