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 | Krosby Thomure | 50.20 | 10 | BB Min | A: 47.89 (+2.31s | 4.6%) | Spokane Waves Aquatic Team | 04/25/2026 | 2026 SWAT Spring Fling | |
| 152 | Colin Hui | 50.21 | 10 | BB Min | A: 47.89 (+2.32s | 4.6%) | Highlands Ranch Aquatics | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 153 | Daniel Kalinovski | 50.23 | 10 | BB Min | A: 47.89 (+2.34s | 4.7%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 154 | Jensen Huang | 50.30 | 10 | BB Min | A: 47.89 (+2.41s | 4.8%) | Arcadia Riptides Swim Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 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 | Ashwin Tiwari | 50.38 | 9 | BB Min | A: 47.89 (+2.49s | 4.9%) | Olympic Cascade Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 158 | 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 | |
| 159 | Declan Sederholm | 50.40 | 10 | BB Min | A: 47.89 (+2.51s | 5.0%) | Hilltop Aquatic Swim Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 160 | Erik Shabdanov | 50.53 | 8 | BB Min | A: 47.89 (+2.64s | 5.2%) | Sunnyvale Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 161 | Mason Sovich | 50.54 | 9 | BB Min | A: 47.89 (+2.65s | 5.2%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 162 | Yupeng Wang | 50.54 | 10 | BB Min | A: 47.89 (+2.65s | 5.2%) | Monterey Park Manta Rays | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 163 | Erik Hai | 50.55 | 10 | BB Min | A: 47.89 (+2.66s | 5.3%) | The Claremont Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 164 | Elijah Hutagalung | 50.57 | 10 | BB Min | A: 47.89 (+2.68s | 5.3%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 165 | 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 | |
| 166 | Hamlin Zhang | 50.60 | 10 | BB Min | A: 47.89 (+2.71s | 5.4%) | Blue Dolphin Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 167 | Oliver Gist-Pitts | 50.63 | 10 | BB Min | A: 47.89 (+2.74s | 5.4%) | Boulder Swim Team | 06/27/2025 | 2025 CO Zone 2 VMAC Meet | |
| 168 | Charles Knigge | 50.65 | 10 | BB Min | A: 47.89 (+2.76s | 5.4%) | Spokane Waves Aquatic Team | 04/25/2026 | 2026 SWAT Spring Fling | |
| 169 | Isaiah Fadillah | 50.65 | 10 | BB Min | A: 47.89 (+2.76s | 5.4%) | California Dolphins Swim Team | 05/02/2026 | Alto Spring Jam CBA | |
| 170 | Luke Xu | 50.67 | 10 | 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 | Gairen Bean | 50.69 | 10 | BB Min | A: 47.89 (+2.80s | 5.5%) | South Bay Aquatics | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 172 | Thomas Cooke | 50.71 | 9 | BB Min | A: 47.89 (+2.82s | 5.6%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 173 | Luke Chaikriangkrai | 50.74 | 9 | BB Min | A: 47.89 (+2.85s | 5.6%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 174 | Haolin Chen | 50.75 | 10 | BB Min | A: 47.89 (+2.86s | 5.6%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 175 | Gavin Johnston | 50.75 | 9 | BB Min | A: 47.89 (+2.86s | 5.6%) | Manta Ray Aquatics | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 176 | Ryan Xie | 50.76 | 10 | BB Min | A: 47.89 (+2.87s | 5.7%) | Cascadia Swimming | 11/01/2025 | Oregon City Fall Open 2025 | |
| 177 | Finn Blakeslee | 50.78 | 10 | BB Min | A: 47.89 (+2.89s | 5.7%) | Hood River Valley Swim Team | 04/25/2026 | GACC Spring Invitational | |
| 178 | Jay Kowren | 50.90 | 10 | BB Min | A: 47.89 (+3.01s | 5.9%) | Bainbridge Island Swim Club | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 179 | Jeffrey Li | 50.90 | 9 | BB Min | A: 47.89 (+3.01s | 5.9%) | Sunnyvale Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 180 | Elliott Boland | 50.91 | 10 | BB Min | A: 47.89 (+3.02s | 5.9%) | Academy Swim Club | 05/16/2026 | BIG ISLAND SWIMMING @ KCAC | |
| 181 | Mateo Sison | 50.97 | 10 | BB Min | A: 47.89 (+3.08s | 6.0%) | San Ramon Valley Aquatics | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 182 | Silvio Leal | 51.01 | 10 | BB Min | A: 47.89 (+3.12s | 6.1%) | Maui Swim Club | 04/19/2026 | 2026 MAGSA LCM A1 Meet | |
| 183 | Deniz Gokbulut | 51.01 | 10 | BB Min | A: 47.89 (+3.12s | 6.1%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 184 | Gary Stoll | 51.01 | 10 | BB Min | A: 47.89 (+3.12s | 6.1%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 185 | Jayke Hung | 51.02 | 10 | BB Min | A: 47.89 (+3.13s | 6.1%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 186 | Phillippe Choi | 51.03 | 10 | BB Min | A: 47.89 (+3.14s | 6.2%) | Klg Sports Swim Team | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 187 | Kotia Zvereff | 51.04 | 8 | BB Min | A: 47.89 (+3.15s | 6.2%) | Unattached | 05/02/2026 | Alto Spring Jam CBA | |
| 188 | Carson Yin | 51.04 | 10 | BB Min | A: 47.89 (+3.15s | 6.2%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 189 | Conner Yang | 51.06 | 10 | BB Min | A: 47.89 (+3.17s | 6.2%) | The Dolphins Portland Swimming | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 190 | Koa Tejwani | 51.10 | 9 | BB Min | A: 47.89 (+3.21s | 6.3%) | Jcc Waves | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 191 | Jayden Huang | 51.13 | 10 | BB Min | A: 47.89 (+3.24s | 6.3%) | Harbor Aquatics Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 192 | Bryce Alpert | 51.15 | 9 | BB Min | A: 47.89 (+3.26s | 6.4%) | Aquazot Swim Club | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 193 | David Chen | 51.17 | 9 | BB Min | A: 47.89 (+3.28s | 6.4%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 194 | Asher Mormino | 51.20 | 10 | BB Min | A: 47.89 (+3.31s | 6.5%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 195 | Thomas Halford | 51.21 | 10 | BB Min | A: 47.89 (+3.32s | 6.5%) | Pikes Peak Athletics | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 196 | Riccardo Sardena | 51.25 | 9 | BB Min | A: 47.89 (+3.36s | 6.6%) | Swim Team of Placentia | 07/25/2024 | 2024 CA SCS BREA Summer A G Champs | |
| 197 | Macintyre Higgins | 51.30 | 9 | BB Min | A: 47.89 (+3.41s | 6.6%) | Denver Triton Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 198 | Winston Chase | 51.32 | 10 | BB Min | A: 47.89 (+3.43s | 6.7%) | Utah Valley Aquatics | 05/08/2025 | 2025 HAST Janet Oles LC Classic | |
| 199 | Zacharia Labyed | 51.36 | 9 | BB Min | A: 47.89 (+3.47s | 6.8%) | North Coast Aquatics | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 200 | Sebastian McNary | 51.39 | 10 | BB Min | A: 47.89 (+3.50s | 6.8%) | Tiger Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day 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.