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 | Max Ong | 41.59 | 10 | A Min | AA: 40.19 (+1.40s | 3.4%) | Pacific Swim | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 152 | Landon Gura | 41.60 | 10 | A Min | AA: 40.19 (+1.41s | 3.4%) | North Coast Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 153 | Gabriel Goldman-Mohl | 41.60 | 10 | A Min | AA: 40.19 (+1.41s | 3.4%) | Dart Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 154 | Duke Layco | 41.63 | 10 | A Min | AA: 40.19 (+1.44s | 3.5%) | Hawaii Swimming Club | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 155 | Adelynn Spurlin | 41.64 | 10 | A Min | AA: 40.19 (+1.45s | 3.5%) | North Jeffco Swim Team | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 156 | Parker Sampson | 41.65 | 10 | A Min | AA: 40.19 (+1.46s | 3.5%) | Denver Swim Academy | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 157 | Elliott Ganancial | 41.66 | 10 | A Min | AA: 40.19 (+1.47s | 3.5%) | Aloha Aquatics Association | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 158 | Brian Yu | 41.67 | 10 | A Min | AA: 40.19 (+1.48s | 3.6%) | Dare Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 159 | Luka McGrath | 41.69 | 10 | A Min | AA: 40.19 (+1.50s | 3.6%) | Multnomah Athletic Club | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 160 | Jaezyn Magnaye | 41.74 | 10 | A Min | AA: 40.19 (+1.55s | 3.7%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 161 | David LI | 41.74 | 10 | A Min | AA: 40.19 (+1.55s | 3.7%) | Blue Team | 01/20/2024 | 2024 SCS All Star Festival | |
| 162 | Yangyang Xu | 41.77 | 10 | A Min | AA: 40.19 (+1.58s | 3.8%) | Pacific Dragons Swim Team | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 163 | Mateo Sison | 41.78 | 10 | A Min | AA: 40.19 (+1.59s | 3.8%) | San Ramon Valley Aquatics | 07/26/2025 | Zone 2 Summer Championships | |
| 164 | Yixuan Zhu | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 165 | Cameron Day | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | Mission Viejo Nadadores | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 166 | Walker Lewis | 41.83 | 10 | A Min | AA: 40.19 (+1.64s | 3.9%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 167 | Eli Lawson | 41.88 | 9 | A Min | AA: 40.19 (+1.69s | 4.0%) | Dolphin Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 168 | Koa Tejwani | 41.92 | 9 | A Min | AA: 40.19 (+1.73s | 4.1%) | Jcc Waves | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 169 | John Griswold | 41.93 | 10 | A Min | AA: 40.19 (+1.74s | 4.1%) | Alameda Gators | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 170 | Ian Kang | 41.93 | 10 | A Min | AA: 40.19 (+1.74s | 4.1%) | Punahou Aquatics Institute | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 171 | William Yao | 41.98 | 10 | A Min | AA: 40.19 (+1.79s | 4.3%) | Fontana Aquatics Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 172 | Koa Maday | 41.99 | 10 | A Min | AA: 40.19 (+1.80s | 4.3%) | Kona Aquatics Club | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 173 | David Chen | 42.03 | 9 | A Min | AA: 40.19 (+1.84s | 4.4%) | Tualatin Hills Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 174 | William Lan | 42.04 | 10 | A Min | AA: 40.19 (+1.85s | 4.4%) | Rancho San Dieguito | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 175 | Kevin Nguyen | 42.04 | 10 | A Min | AA: 40.19 (+1.85s | 4.4%) | Legacy Aquatics | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 176 | Mark Kiselev | 42.12 | 9 | BB Min | A: 42.09 (+0.03s | 0.1%) | Royal Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 177 | 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 | |
| 178 | Kai Kitamori | 42.14 | 10 | BB Min | A: 42.09 (+0.05s | 0.1%) | East Bay Bat Rays | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 179 | Cheng Dou | 42.17 | 10 | BB Min | A: 42.09 (+0.08s | 0.2%) | Alto Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 180 | Yusen Wang | 42.20 | 9 | BB Min | A: 42.09 (+0.11s | 0.3%) | Irvine Novaquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 181 | Anderson Bradley | 42.21 | 10 | BB Min | A: 42.09 (+0.12s | 0.3%) | Coastal Machine Aquatics Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 182 | Jayden Zhen | 42.22 | 10 | BB Min | A: 42.09 (+0.13s | 0.3%) | Adrienne C Nelson | 02/15/2025 | 2025 OR HS 6a 4 | |
| 183 | Mason Folster | 42.22 | 10 | BB Min | A: 42.09 (+0.13s | 0.3%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 184 | 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 | |
| 185 | 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+ | |
| 186 | Phillippe Choi | 42.27 | 10 | BB Min | A: 42.09 (+0.18s | 0.4%) | Blast Sharks | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 187 | Jake McNair | 42.34 | 9 | BB Min | A: 42.09 (+0.25s | 0.6%) | Bellevue Club Swim Team | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 188 | Lucas Pan | 42.35 | 9 | BB Min | A: 42.09 (+0.26s | 0.6%) | Pacific Swimming Zone | 04/26/2026 | 2026 Pacific Swimming Zone All Star Meet | |
| 189 | Mason Sovich | 42.41 | 9 | BB Min | A: 42.09 (+0.32s | 0.8%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 190 | 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 | |
| 191 | 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+ | |
| 192 | Daniel Nagaoka | 42.44 | 10 | BB Min | A: 42.09 (+0.35s | 0.8%) | Quicksilver Swimming | 03/20/2026 | SCY Spring Age Group Championships | |
| 193 | Herman Wollman | 42.44 | 10 | BB Min | A: 42.09 (+0.35s | 0.8%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 194 | Everett Edquid | 42.46 | 10 | BB Min | A: 42.09 (+0.37s | 0.9%) | Aquabear Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 195 | William Power | 42.47 | 10 | BB Min | A: 42.09 (+0.38s | 0.9%) | Monterey Bay Swim Club | 07/18/2025 | CVAL | |
| 196 | Leo Ioffe | 42.49 | 9 | BB Min | A: 42.09 (+0.40s | 0.9%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 197 | Charles Sundberg | 42.50 | 10 | BB Min | A: 42.09 (+0.41s | 1.0%) | North Bay Aquatics | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 198 | Zhouhan Yang | 42.51 | 10 | BB Min | A: 42.09 (+0.42s | 1.0%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 199 | Jonathan Nelson | 42.52 | 10 | BB Min | A: 42.09 (+0.43s | 1.0%) | Utah Valley Aquatics | 12/26/2024 | 59th Kearns Holiday Open Invitational | |
| 200 | Leland Tsou | 42.53 | 9 | BB Min | A: 42.09 (+0.44s | 1.0%) | Paseo Aquatics Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
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.