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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1251 | Reece Kau | 52.14 | 10 | B Min | BB: 47.69 (+4.45s | 8.5%) | Palo Alto Stanford Aquatics | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 1252 | Jax John | 52.14 | 9 | B Min | BB: 47.69 (+4.45s | 8.5%) | Mesa Aquatics Club | 02/14/2025 | 33rd Annual Lost Dutchman Invitational | |
| 1253 | Bryce Vowinkle | 52.15 | 10 | B Min | BB: 47.69 (+4.46s | 8.6%) | Highlands Ranch Aquatics | 12/19/2025 | 2025 CO Falfins Holiday Open | |
| 1254 | James Dussel | 52.16 | 10 | B Min | BB: 47.69 (+4.47s | 8.6%) | Multnomah Athletic Club | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 1255 | Sawyer Mabry | 52.16 | 9 | B Min | BB: 47.69 (+4.47s | 8.6%) | Wild West Aquatic Club | 01/23/2026 | 2026 BD JCAT IMX 2026 | |
| 1256 | Jason Wang | 52.19 | 10 | B Min | BB: 47.69 (+4.50s | 8.6%) | Bellingham Bay Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | |
| 1257 | Lucas Li | 52.19 | 8 | B Min | BB: 47.69 (+4.50s | 8.6%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 1258 | Jaden McLaughlin | 52.19 | 9 | B Min | BB: 47.69 (+4.50s | 8.6%) | Killer Whales Swim Club | 12/12/2025 | 2025 OR TTSC Holiday Invitational Meet | |
| 1259 | Colin Hui | 52.19 | 8 | B Min | BB: 47.69 (+4.50s | 8.6%) | Highlands Ranch Aquatics | 11/15/2024 | 2024 CO TOPS Fall Invite | |
| 1260 | Felix Wang | 52.19 | 9 | B Min | BB: 47.69 (+4.50s | 8.6%) | Eastside Aquatic Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 1261 | Joseph Hager | 52.20 | 10 | B Min | BB: 47.69 (+4.51s | 8.6%) | Rogue Rapids | 11/21/2025 | 2025 Rogue Rapids Sofia Marks Invitational | |
| 1262 | Oliver Morris | 52.22 | 9 | B Min | BB: 47.69 (+4.53s | 8.7%) | Lake Oswego Swim Club | 11/07/2025 | 2025 McSwimville Invitational | |
| 1263 | James Witt | 52.22 | 9 | B Min | BB: 47.69 (+4.53s | 8.7%) | Roseburg Y Swim Team | 01/24/2026 | Oregon YMCA Championships 2026 | |
| 1264 | Jace Gordon | 52.22 | 9 | B Min | BB: 47.69 (+4.53s | 8.7%) | Los Gatos Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 1265 | Tomaso Pisegna | 52.23 | 9 | B Min | BB: 47.69 (+4.54s | 8.7%) | South Valley Makos | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 1266 | Kensington Hull | 52.23 | 10 | B Min | BB: 47.69 (+4.54s | 8.7%) | Heartland Swim Assoc | 01/31/2026 | 2026 SI HSA All Ages NTS Meet | |
| 1267 | Hudson Franck | 52.25 | 10 | B Min | BB: 47.69 (+4.56s | 8.7%) | Bellevue Club Swim Team | 10/11/2025 | 2025 PN MMSC Fall Invite | |
| 1268 | Aymes Shi | 52.27 | 9 | B Min | BB: 47.69 (+4.58s | 8.8%) | Quicksilver Swimming | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 1269 | Gabriel Dom | 52.30 | 9 | B Min | BB: 47.69 (+4.61s | 8.8%) | Bellevue Club Swim Team | 01/31/2026 | 2026 PN BISC Bluefin Invitational | |
| 1270 | Noah Marin | 52.30 | 10 | B Min | BB: 47.69 (+4.61s | 8.8%) | Aptos Cabrillo Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 1271 | Oliver Ng | 52.30 | 10 | B Min | BB: 47.69 (+4.61s | 8.8%) | Life Time Oregon Swim Team | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 1272 | Reean Shen | 52.31 | 9 | B Min | BB: 47.69 (+4.62s | 8.8%) | Pro Swimming | 01/23/2026 | 2026 PN Pro January Intrasquad Approved | |
| 1273 | Ayaan Bhaya | 52.33 | 10 | B Min | BB: 47.69 (+4.64s | 8.9%) | Sunnyvale Swim Club | 09/28/2025 | SUNN Blue And Gold Intrasquad Meet Copied | |
| 1274 | Luca Platko | 52.33 | 9 | B Min | BB: 47.69 (+4.64s | 8.9%) | Inland Coastal Aquatic Club | 11/02/2025 | 2025 SI ICAC RISING STARS 1 | |
| 1275 | Jayden Yu | 52.33 | 9 | B Min | BB: 47.69 (+4.64s | 8.9%) | DeAnza Cupertino Aquatics | 12/06/2025 | Alto Dec 6 7 CBA | |
| 1276 | Adam Ellingwood | 52.34 | 9 | B Min | BB: 47.69 (+4.65s | 8.9%) | Orinda Aquatics | 05/18/2025 | Montclair 14 Under Short Course Pentathlon | |
| 1277 | Coden Celani | 52.34 | 10 | B Min | BB: 47.69 (+4.65s | 8.9%) | Southern Utah Swimming Associa | 09/26/2025 | Stingrays Fall Fling Sep 2025 | |
| 1278 | Ethan Gao | 52.34 | 9 | B Min | BB: 47.69 (+4.65s | 8.9%) | California Dolphins Swim Team | 09/27/2025 | PC LAC C B BB | |
| 1279 | Lucas Poupard | 52.35 | 8 | B Min | BB: 47.69 (+4.66s | 8.9%) | McGrath Marlins Swim Team | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 1280 | Clark Wilson | 52.35 | 10 | B Min | BB: 47.69 (+4.66s | 8.9%) | Unattached | 12/06/2025 | Alto Dec 6 7 CBA | |
| 1281 | Thomas Boernke | 52.35 | 10 | B Min | BB: 47.69 (+4.66s | 8.9%) | Nampa Swim Team | 12/06/2025 | Reindeer Games 2025 | |
| 1282 | Sawyer Stephenson-Sabin | 52.35 | 9 | B Min | BB: 47.69 (+4.66s | 8.9%) | Napa Valley Swim Team | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 1283 | Maxwell Kelsey | 52.36 | 9 | B Min | BB: 47.69 (+4.67s | 8.9%) | Almaden Riptide | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 1284 | Calvin Warren | 52.37 | 9 | B Min | BB: 47.69 (+4.68s | 8.9%) | Hilltop Aquatic Swim Team | 02/28/2025 | Beehive Finale 2025 | |
| 1285 | Ryden Ciammaichella | 52.37 | 9 | B Min | BB: 47.69 (+4.68s | 8.9%) | Piedmont Swim Team | 12/05/2025 | Pacific Swim SC C B BB+ Hosted By TERA | |
| 1286 | Carter Beckman | 52.38 | 10 | B Min | BB: 47.69 (+4.69s | 9.0%) | Swim Neptune | 12/04/2025 | 2025 Holiday Swim Festival | |
| 1287 | Michael Panic | 52.40 | 10 | B Min | BB: 47.69 (+4.71s | 9.0%) | Truckee-Tahoe Swim Team | 10/17/2025 | 2025 KING OF THE HILL CHALLENGE | |
| 1288 | Nathan Hou | 52.41 | 9 | B Min | BB: 47.69 (+4.72s | 9.0%) | Alto Swim Club | 11/23/2024 | Alto Fall Frolic Meet | |
| 1289 | Brandon Brooks | 52.41 | 9 | B Min | BB: 47.69 (+4.72s | 9.0%) | Olympus Aquatics | 12/18/2025 | 2025 OA IMR II Copied | |
| 1290 | Lucas Sussman | 52.41 | 10 | B Min | BB: 47.69 (+4.72s | 9.0%) | Cascade Swim Club | 02/01/2026 | 2026 PN CSC February Mini Meet Approved | |
| 1291 | Logan Ma | 52.41 | 9 | B Min | BB: 47.69 (+4.72s | 9.0%) | East Bay Silver Dolphins | 10/17/2025 | 2025 KING OF THE HILL CHALLENGE | |
| 1292 | William Foster | 52.41 | 10 | B Min | BB: 47.69 (+4.72s | 9.0%) | Wave Aquatics | 11/22/2025 | 2025 PN Nov AGI, Division 2 (SMAC) | |
| 1293 | Murphy Oneill Butler | 52.41 | 9 | B Min | BB: 47.69 (+4.72s | 9.0%) | Wind N Sea Swim Team | 01/31/2026 | 2026 SI HSA All Ages NTS Meet | |
| 1294 | Francis Collins | 52.42 | 10 | B Min | BB: 47.69 (+4.73s | 9.0%) | Ukiah Dolphins | 07/26/2025 | 2025 REAL Championships | |
| 1295 | Lucas Liu | 52.42 | 8 | B Min | BB: 47.69 (+4.73s | 9.0%) | Bellevue Club Swim Team | 11/22/2025 | 2025 PN November AGI, Div 3 (UPAC) | |
| 1296 | Chinmay Joshi | 52.43 | 9 | B Min | BB: 47.69 (+4.74s | 9.0%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 1297 | John Knudsen | 52.44 | 10 | B Min | BB: 47.69 (+4.75s | 9.1%) | Puget Sound Swim Club | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 1298 | Grant Soder | 52.44 | 10 | B Min | BB: 47.69 (+4.75s | 9.1%) | Roseburg Y Swim Team | 01/24/2026 | Oregon YMCA Championships 2026 | |
| 1299 | Mateo Lopez | 52.45 | 8 | B Min | BB: 47.69 (+4.76s | 9.1%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 1300 | Benjamin Bull | 52.48 | 9 | B Min | BB: 47.69 (+4.79s | 9.1%) | Bellevue Club Swim Team | 02/01/2025 | 2025 PN BISC Bluefin Invitational | |
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.