Western Zone Zone Boys 10 & under - 50 Y 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 | Lok Zhang | 41.37 | 9 | A Min | AA: 40.19 (+1.18s | 2.9%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 152 | Anthony Ma | 41.43 | 10 | A Min | AA: 40.19 (+1.24s | 3.0%) | Cottonwood Heights Aquatics | 12/13/2025 | 2025 UTAH Winter Classic | |
| 153 | Eric Zeng | 41.46 | 8 | A Min | AA: 40.19 (+1.27s | 3.1%) | Canyons Aquatic Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 154 | Conner Lo | 41.47 | 10 | A Min | AA: 40.19 (+1.28s | 3.1%) | DeAnza Cupertino Aquatics | 10/25/2025 | 2025 SUNN Fall Classic | |
| 155 | Caleb Peykoff | 41.50 | 10 | A Min | AA: 40.19 (+1.31s | 3.2%) | San Clemente Aquatic Team | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 156 | Ludwik Pawelski | 41.56 | 9 | A Min | AA: 40.19 (+1.37s | 3.3%) | Sparks Piranhas Swim Team | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 157 | Declan Bannan | 41.57 | 10 | A Min | AA: 40.19 (+1.38s | 3.3%) | Rancho San Dieguito | 11/08/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 158 | Silas Perdue | 41.60 | 9 | A Min | AA: 40.19 (+1.41s | 3.4%) | Foothills Swim Team | 02/28/2025 | 2025 CO CSI 14 U Age Group Championships | |
| 159 | Adrian Deng | 41.60 | 10 | A Min | AA: 40.19 (+1.41s | 3.4%) | Mission Viejo Nadadores | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 160 | Gabriel Goldman-Mohl | 41.60 | 10 | A Min | AA: 40.19 (+1.41s | 3.4%) | Dart Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 161 | Nolan Lu | 41.61 | 10 | A Min | AA: 40.19 (+1.42s | 3.4%) | DeAnza Cupertino Aquatics | 12/06/2025 | Alto Dec 6 7 CBA | |
| 162 | Jason Ye | 41.66 | 10 | A Min | AA: 40.19 (+1.47s | 3.5%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 163 | Luka McGrath | 41.69 | 9 | A Min | AA: 40.19 (+1.50s | 3.6%) | Multnomah Athletic Club | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 164 | David LI | 41.74 | 8 | A Min | AA: 40.19 (+1.55s | 3.7%) | Blue Team | 01/20/2024 | 2024 SCS All Star Festival | |
| 165 | Sebastian Darnell | 41.78 | 9 | A Min | AA: 40.19 (+1.59s | 3.8%) | Pikes Peak Athletics | 01/10/2025 | 2025 CO PPA January Meet | |
| 166 | Mateo Sison | 41.78 | 9 | A Min | AA: 40.19 (+1.59s | 3.8%) | San Ramon Valley Aquatics | 07/26/2025 | Zone 2 Summer Championships | |
| 167 | Samuel Evanovich | 41.82 | 9 | A Min | AA: 40.19 (+1.63s | 3.9%) | Academy Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 168 | Cameron Day | 41.82 | 9 | A Min | AA: 40.19 (+1.63s | 3.9%) | Mission Viejo Nadadores | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 169 | Walker Lewis | 41.83 | 9 | A Min | AA: 40.19 (+1.64s | 3.9%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 170 | Wyatt Larson | 41.85 | 10 | A Min | AA: 40.19 (+1.66s | 4.0%) | Denver Swim Academy | 01/23/2026 | 2026 CO TOPS Colorado Open | |
| 171 | David Powell | 41.89 | 10 | A Min | AA: 40.19 (+1.70s | 4.1%) | Heartland Swim Assoc | 01/17/2026 | 2026 SBA All Ages A BB Meet | |
| 172 | Jeremy Zhao | 41.94 | 9 | A Min | AA: 40.19 (+1.75s | 4.2%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 173 | Ethan Wang | 41.94 | 9 | A Min | AA: 40.19 (+1.75s | 4.2%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 174 | Sinan Ozgur | 42.00 | 10 | A Min | AA: 40.19 (+1.81s | 4.3%) | Pleasanton Seahawks | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 175 | Alexander Fang | 42.00 | 10 | A Min | AA: 40.19 (+1.81s | 4.3%) | Reno Aquatic Club | 01/16/2026 | 2026 Blizzard Blast Swim Meet | |
| 176 | Yihong Xiang | 42.01 | 10 | A Min | AA: 40.19 (+1.82s | 4.3%) | Tualatin Hills Swim Club | 12/05/2025 | 2025 Tualatin Hills Holiday Classic | |
| 177 | Finlay Nelson | 42.06 | 10 | A Min | AA: 40.19 (+1.87s | 4.4%) | AC Swim Club | 02/07/2026 | 2026 PSL Super Finals Invitational | |
| 178 | Zackary Chuck | 42.09 | 10 | A Min | AA: 40.19 (+1.90s | 4.5%) | Boys & Girls Club of SF | 10/11/2025 | SSF October Splash C B A+ Meet | |
| 179 | Jonathan Li | 42.09 | 7 | A Min | AA: 40.19 (+1.90s | 4.5%) | Brea Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 180 | Joshua Chen | 42.11 | 10 | BB Min | A: 42.09 (+0.02s | 0.0%) | Bellevue Club Swim Team | 10/11/2025 | 2025 PN MMSC Fall Invite | |
| 181 | Arthur Shackelton | 42.13 | 9 | BB Min | A: 42.09 (+0.04s | 0.1%) | Lakeridge Swim Team | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 182 | Thomas Halford | 42.14 | 10 | BB Min | A: 42.09 (+0.05s | 0.1%) | Pikes Peak Athletics | 12/12/2025 | 2025 CO FAST Bill Spahn Mid Season Finale | |
| 183 | Liam Kwak | 42.19 | 10 | BB Min | A: 42.09 (+0.10s | 0.2%) | Life Time Colorado Swim Club | 02/13/2026 | 2026 CO Valentine Open | |
| 184 | Jayden Zhen | 42.22 | 9 | BB Min | A: 42.09 (+0.13s | 0.3%) | Adrienne C Nelson | 02/15/2025 | 2025 OR HS 6a 4 | |
| 185 | Enzo Harter | 42.23 | 10 | BB Min | A: 42.09 (+0.14s | 0.3%) | Beaverton Area Aquatics Club | 10/17/2025 | 2025 CST Harvest Open | |
| 186 | Kaizen Toung | 42.24 | 9 | BB Min | A: 42.09 (+0.15s | 0.4%) | Orinda Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 187 | Peter Petkov | 42.26 | 9 | BB Min | A: 42.09 (+0.17s | 0.4%) | Triton Aquatics Club | 09/27/2025 | PC LAC C B BB | |
| 188 | Phillippe Choi | 42.27 | 9 | BB Min | A: 42.09 (+0.18s | 0.4%) | Blast Sharks | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 189 | Eli Lawson | 42.29 | 9 | BB Min | A: 42.09 (+0.20s | 0.5%) | Dolphin Aquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 190 | Ryan Chen | 42.30 | 10 | BB Min | A: 42.09 (+0.21s | 0.5%) | DeAnza Cupertino Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 191 | Elijah Hutagalung | 42.31 | 9 | BB Min | A: 42.09 (+0.22s | 0.5%) | Aspire Aquatics of Colorado | 02/28/2025 | 2025 CO CSI 14 U Age Group Championships | |
| 192 | Connor West | 42.31 | 9 | BB Min | A: 42.09 (+0.22s | 0.5%) | The Spartans of La Canada | 03/13/2025 | 2025 SCS Spring Age Group Champs @ Armada | |
| 193 | Luke Xu | 42.37 | 10 | BB Min | A: 42.09 (+0.28s | 0.7%) | California Dolphins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 194 | Ashwin Tiwari | 42.37 | 9 | BB Min | A: 42.09 (+0.28s | 0.7%) | Olympic Cascade Aquatics | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 195 | Aydan Li | 42.40 | 10 | BB Min | A: 42.09 (+0.31s | 0.7%) | Hydro Aquatics Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 196 | Aiden Kiatrungrit | 42.43 | 10 | BB Min | A: 42.09 (+0.34s | 0.8%) | South San Francisco Aquatics | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 197 | Hawx Hansen | 42.43 | 10 | BB Min | A: 42.09 (+0.34s | 0.8%) | Wasatch Front Fish Market | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
| 198 | William Power | 42.47 | 9 | BB Min | A: 42.09 (+0.38s | 0.9%) | Monterey Bay Swim Club | 07/18/2025 | CVAL | |
| 199 | Daniel Heilman | 42.49 | 10 | BB Min | A: 42.09 (+0.40s | 0.9%) | San Francisco Seals Swim Team | 11/08/2025 | TCA PC November SC C B A+ | |
| 200 | Axton Santiago | 42.51 | 10 | BB Min | A: 42.09 (+0.42s | 1.0%) | Pearl City Aquatics | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
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.