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 | |
|---|---|---|---|---|---|---|---|---|---|
| 251 | Samuel Ellsworth | 44.66 | 10 | BB Min | A: 42.09 (+2.57s | 5.8%) | Boise Swim Club | 11/22/2025 | 57th Annual Thanksgiving Invitational | |
| 252 | Milo Lanigan | 44.66 | 10 | BB Min | A: 42.09 (+2.57s | 5.8%) | Pikes Peak Athletics | 04/11/2026 | 2026 CO PPA Sprint Penthathlon | |
| 253 | Decker Sewell | 44.67 | 10 | BB Min | A: 42.09 (+2.58s | 5.8%) | Ski Hi Aquatics | 06/19/2026 | 2026 Max Shirley Radiff Memorial | |
| 254 | Victor Secor | 44.70 | 9 | BB Min | A: 42.09 (+2.61s | 5.8%) | Orinda Aquatics | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 255 | Matthew Winn | 44.70 | 9 | BB Min | A: 42.09 (+2.61s | 5.8%) | Stingray Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | |
| 256 | Marco Gonzalez | 44.71 | 10 | BB Min | A: 42.09 (+2.62s | 5.9%) | South Bay Aquatics | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 257 | Conner Yang | 44.72 | 10 | BB Min | A: 42.09 (+2.63s | 5.9%) | The Dolphins Portland Swimming | 01/10/2026 | 2026 Hood River Winter Invitational | |
| 258 | Patrick Fullerton | 44.74 | 10 | BB Min | A: 42.09 (+2.65s | 5.9%) | South Bay Aquatics | 01/17/2026 | 2026 SBA All Ages A BB Meet | |
| 259 | Asher Amira | 44.74 | 10 | BB Min | A: 42.09 (+2.65s | 5.9%) | Chinook Aquatic Club | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 260 | Otto Seeber | 44.76 | 9 | BB Min | A: 42.09 (+2.67s | 6.0%) | Flatiron Athletic Club | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 261 | Jaafar Lahmidi | 44.76 | 10 | B: 43.49 (+1.27s | 2.8%) | Foothills Swim Team | 02/27/2026 | 2026 CO CSI SC Age Group Championships | ||
| 262 | Finn Scott | 44.79 | 10 | BB Min | A: 42.09 (+2.70s | 6.0%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 263 | Stuart Shillington | 44.81 | 10 | BB Min | A: 42.09 (+2.72s | 6.1%) | Team Eugene Aquatics | 03/14/2026 | 2026 TEAM Shootout | |
| 264 | Winston Chase | 44.83 | 10 | BB Min | A: 42.09 (+2.74s | 6.1%) | Utah Valley Aquatics | 12/04/2025 | 2025 Holiday Swim Festival | |
| 265 | Gavin Johnston | 44.83 | 10 | BB Min | A: 42.09 (+2.74s | 6.1%) | Manta Ray Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 266 | Macintyre Higgins | 44.84 | 9 | BB Min | A: 42.09 (+2.75s | 6.1%) | Denver Triton Swim Team | 03/06/2026 | 2026 CO 14 U Silver State | |
| 267 | Finn Blakeslee | 44.85 | 10 | BB Min | A: 42.09 (+2.76s | 6.2%) | Hood River Valley Swim Team | 05/09/2026 | 2026 Spring Sprinter Invitational | |
| 268 | Kenneth Zhang | 44.86 | 8 | BB Min | A: 42.09 (+2.77s | 6.2%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 269 | Andy Tran | 44.87 | 10 | BB Min | A: 42.09 (+2.78s | 6.2%) | Seattle Metropolitan Aquatic C | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | |
| 270 | George Yu | 44.87 | 10 | BB Min | A: 42.09 (+2.78s | 6.2%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 271 | Haolin Chen | 44.90 | 10 | BB Min | A: 42.09 (+2.81s | 6.3%) | Pacific Dragons Swim Team | 11/16/2025 | 2025 PN PAC Q Meet | |
| 272 | Muyang He | 44.90 | 10 | BB Min | A: 42.09 (+2.81s | 6.3%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 273 | Benjamin Robinson | 44.90 | 10 | BB Min | A: 42.09 (+2.81s | 6.3%) | Neptune Swimming | 07/25/2026 | 2026 REAL Championships | |
| 274 | Julien Pied | 44.94 | 10 | BB Min | A: 42.09 (+2.85s | 6.3%) | Front Range Barracudas | 04/17/2026 | 2026 CO CUDA April Pizza Meet | |
| 275 | Max Peterson | 44.94 | 10 | BB Min | A: 42.09 (+2.85s | 6.3%) | Cottonwood Heights Aquatics | 11/07/2025 | 2026 UT CHAT November Intersquad | |
| 276 | John Glenn | 44.97 | 9 | BB Min | A: 42.09 (+2.88s | 6.4%) | SlipStream Aquatics | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 277 | Austin Zhou | 44.98 | 9 | BB Min | A: 42.09 (+2.89s | 6.4%) | Pacific Dragons Swim Team | 03/07/2026 | 2026 PDST Mar Pentathlon Last Chance Approved | |
| 278 | Maxwell Yao | 45.01 | 9 | BB Min | A: 42.09 (+2.92s | 6.5%) | Gilroy Gators Swim Team | 10/25/2025 | GGST Spooktacular 2025 | |
| 279 | Caleb Stone | 45.01 | 10 | BB Min | A: 42.09 (+2.92s | 6.5%) | Bellingham Bay Swim Team | 05/15/2026 | 2026 PN TAC Spring Thunderbird Approved | |
| 280 | Ivan Smarshchok | 45.03 | 9 | BB Min | A: 42.09 (+2.94s | 6.5%) | King Aquatic Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 281 | Austin Pham | 45.04 | 10 | BB Min | A: 42.09 (+2.95s | 6.5%) | Foothills Swim Team | 03/06/2026 | 2026 CO 14 U Silver State | |
| 282 | Ethan Zhong | 45.05 | 9 | BB Min | A: 42.09 (+2.96s | 6.6%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 283 | Declan Sederholm | 45.08 | 10 | BB Min | A: 42.09 (+2.99s | 6.6%) | Hilltop Aquatic Swim Team | 03/05/2025 | 2025 Short Course UTAGS Championships | |
| 284 | Henry Sundberg | 45.08 | 8 | BB Min | A: 42.09 (+2.99s | 6.6%) | Univ. of Denver Hilltoppers | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 285 | Charles Knigge | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | Spokane Waves Aquatic Team | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 286 | Van Ewing | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | Tahoe Swim Club | 07/31/2026 | 2026 High Country Short Course Championship | |
| 287 | Ishaan Malik | 45.15 | 10 | BB Min | A: 42.09 (+3.06s | 6.8%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 288 | Mason NG | 45.16 | 10 | BB Min | A: 42.09 (+3.07s | 6.8%) | Port Angeles Swim Club | 08/01/2026 | 2026 PN PASC Heatwave Sprint Distance Appr | |
| 289 | Lukas Fort | 45.16 | 9 | BB Min | A: 42.09 (+3.07s | 6.8%) | Bainbridge Island Swim Club | 01/31/2026 | 2026 PN BISC Bluefin Invitational | |
| 290 | Castle Cline | 45.18 | 10 | BB Min | A: 42.09 (+3.09s | 6.8%) | Seattle Metropolitan Aquatic C | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 291 | Daniel Reschke | 45.18 | 10 | BB Min | A: 42.09 (+3.09s | 6.8%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 292 | Owen Bronson | 45.22 | 9 | BB Min | A: 42.09 (+3.13s | 6.9%) | Legacy Aquatics | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 293 | Wesley Tong | 45.22 | 10 | BB Min | A: 42.09 (+3.13s | 6.9%) | Front Range Barracudas | 07/09/2026 | 2026 CO NCS 10 U Summer Festival | |
| 294 | Young Sun | 45.22 | 9 | BB Min | A: 42.09 (+3.13s | 6.9%) | Pro Swimming | 05/30/2026 | 2026 PN Pro Summer Pentathlon Approved | |
| 295 | Francis Wang | 45.23 | 9 | BB Min | A: 42.09 (+3.14s | 6.9%) | West Coast Aquatics | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 296 | Elliot Gorman | 45.24 | 10 | BB Min | A: 42.09 (+3.15s | 7.0%) | Front Range Barracudas | 07/09/2026 | 2026 CO NCS 10 U Summer Festival | |
| 297 | Jonathan Chen | 45.24 | 9 | BB Min | A: 42.09 (+3.15s | 7.0%) | California Dolphins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 298 | Edmund Lin | 45.24 | 9 | BB Min | A: 42.09 (+3.15s | 7.0%) | California Dolphins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 299 | Jimmy Chen | 45.25 | 9 | BB Min | A: 42.09 (+3.16s | 7.0%) | Monterey Park Manta Rays | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 300 | Moses Xia | 45.33 | 10 | BB Min | A: 42.09 (+3.24s | 7.1%) | Wasc | 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.