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 | |
|---|---|---|---|---|---|---|---|---|---|
| 351 | Beau Jakubowski | 51.08 | 9 | BB Min | A: 47.89 (+3.19s | 6.2%) | Aces Swim Club | 07/10/2026 | 2026 CO ACES DSA Summer Blast | |
| 352 | River Wilkinson | 51.10 | 10 | BB Min | A: 47.89 (+3.21s | 6.3%) | North Coast Aquatics | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 353 | 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 | |
| 354 | Kevin Zhang | 51.16 | 9 | BB Min | A: 47.89 (+3.27s | 6.4%) | Wave Aquatics | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 355 | Cannon Brown | 51.16 | 10 | BB Min | A: 47.89 (+3.27s | 6.4%) | Olympic Cascade Aquatics | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 356 | Keller Kirkpatrick | 51.18 | 9 | BB Min | A: 47.89 (+3.29s | 6.4%) | Lake Oswego Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 357 | Marco Gonzalez | 51.18 | 10 | BB Min | A: 47.89 (+3.29s | 6.4%) | San Diego Imperial All Star TM | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 358 | 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 | |
| 359 | 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 | |
| 360 | Elliot Gorman | 51.22 | 10 | BB Min | A: 47.89 (+3.33s | 6.5%) | Front Range Barracudas | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 361 | Blake Hadfield | 51.22 | 10 | BB Min | A: 47.89 (+3.33s | 6.5%) | Aulea Swim Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 362 | Asher Cariazo | 51.23 | 10 | BB Min | A: 47.89 (+3.34s | 6.5%) | Montrose Marlins Swim Club | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 363 | 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 | |
| 364 | 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 | |
| 365 | 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 | |
| 366 | Mario Aoki | 51.37 | 9 | BB Min | A: 47.89 (+3.48s | 6.8%) | Falfins Swimming | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 367 | Conrad Shwe | 51.41 | 9 | BB Min | A: 47.89 (+3.52s | 6.8%) | Clovis Swim Club | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 368 | Raizo Copp | 51.41 | 10 | BB Min | A: 47.89 (+3.52s | 6.8%) | King Aquatic Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 369 | Isaac Zepeda | 51.43 | 10 | BB Min | A: 47.89 (+3.54s | 6.9%) | South Gate Aquatics Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 370 | Cole Proescher | 51.49 | 10 | BB Min | A: 47.89 (+3.60s | 7.0%) | Orinda Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 371 | Beckham Sleeth | 51.49 | 9 | BB Min | A: 47.89 (+3.60s | 7.0%) | Highlands Ranch Aquatics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 372 | Watson She | 51.50 | 10 | BB Min | A: 47.89 (+3.61s | 7.0%) | Bellevue Club Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 373 | Bennett Arguello | 51.50 | 9 | BB Min | A: 47.89 (+3.61s | 7.0%) | Greenwood Tiger Sharks | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 374 | Noah Chang | 51.52 | 9 | BB Min | A: 47.89 (+3.63s | 7.0%) | North Coast Aquatics | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 375 | Zane Gibson | 51.58 | 9 | BB Min | A: 47.89 (+3.69s | 7.2%) | Alpha Aquatics | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 376 | Miles VanderLinden | 51.61 | 9 | BB Min | A: 47.89 (+3.72s | 7.2%) | Truckee-Tahoe Swim Team | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
| 377 | Mason Li | 51.61 | 9 | BB Min | A: 47.89 (+3.72s | 7.2%) | Brea Aquatics | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 378 | Brandon Son | 51.62 | 9 | BB Min | A: 47.89 (+3.73s | 7.2%) | Columbia River Swim Team | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 379 | Mikail Adlinsyah | 51.62 | 10 | BB Min | A: 47.89 (+3.73s | 7.2%) | Swim Excellence Academy | 06/19/2026 | 2026 SI Splash And Dash | |
| 380 | Ahaan Maknojia | 51.66 | 9 | BB Min | A: 47.89 (+3.77s | 7.3%) | Issaquah Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 381 | Maddox Fish | 51.67 | 9 | BB Min | A: 47.89 (+3.78s | 7.3%) | Pikes Peak Athletics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 382 | Francis Wang | 51.69 | 9 | BB Min | A: 47.89 (+3.80s | 7.4%) | West Coast Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 383 | Yunhan Song | 51.69 | 10 | BB Min | A: 47.89 (+3.80s | 7.4%) | Eastside Aquatic Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 384 | Vir Gadkari | 51.75 | 10 | BB Min | A: 47.89 (+3.86s | 7.5%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 385 | Eddie Bi | 51.76 | 9 | BB Min | A: 47.89 (+3.87s | 7.5%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 386 | Branimir Petkov | 51.76 | 10 | BB Min | A: 47.89 (+3.87s | 7.5%) | Evolution Racing Club | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 387 | Levi Cheung | 51.77 | 8 | BB Min | A: 47.89 (+3.88s | 7.5%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 388 | Steevenson Martins | 51.78 | 9 | BB Min | A: 47.89 (+3.89s | 7.5%) | McMinnville Swim Club | 06/05/2026 | 2026 CST Summer Invitational | |
| 389 | Robert Kolesnik | 51.81 | 10 | BB Min | A: 47.89 (+3.92s | 7.6%) | Bulldog Swim Club | 06/12/2026 | BAC Long Course | |
| 390 | Luke Brophy | 51.81 | 10 | BB Min | A: 47.89 (+3.92s | 7.6%) | Irvine Novaquatics | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 391 | George Gray | 51.81 | 10 | BB Min | A: 47.89 (+3.92s | 7.6%) | Portland Aquatic Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 392 | Gavin Yang | 51.82 | 10 | BB Min | A: 47.89 (+3.93s | 7.6%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 393 | Fedor Evstigneev | 51.83 | 9 | BB Min | A: 47.89 (+3.94s | 7.6%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 394 | William Lawrence | 51.85 | 9 | BB Min | A: 47.89 (+3.96s | 7.6%) | Pro Swimming | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 395 | Jason Buhr | 51.86 | 10 | BB Min | A: 47.89 (+3.97s | 7.7%) | Pikes Peak Athletics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 396 | Shaler Berry | 51.86 | 10 | BB Min | A: 47.89 (+3.97s | 7.7%) | Unattached | 06/19/2026 | 2026 SI Splash And Dash | |
| 397 | Finnegan Persampieri | 51.88 | 10 | BB Min | A: 47.89 (+3.99s | 7.7%) | Otter Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 398 | Shane Kirkwood | 51.89 | 10 | BB Min | A: 47.89 (+4.00s | 7.7%) | Lake Oswego Swim Club | 08/01/2026 | 2026 GACC End Of Season | |
| 399 | Vaughn Jamison | 51.89 | 10 | BB Min | A: 47.89 (+4.00s | 7.7%) | Aspire Aquatics of Colorado | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 400 | Hayden Wang | 51.90 | 9 | BB Min | A: 47.89 (+4.01s | 7.7%) | McGrath Marlins Swim Team | 06/19/2026 | 2026 SI Splash And Dash | |
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.