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 | |
|---|---|---|---|---|---|---|---|---|---|
| 551 | Guillermo Dinares Cardenal | 59.27 | 7 | B Min | BB: 54.39 (+4.88s | 8.2%) | Vashon Seals Swim Team | 06/14/2025 | 2025 IST June Invtational | |
| 552 | Eddie Bi | 59.27 | 8 | B Min | BB: 54.39 (+4.88s | 8.2%) | California Dolphins Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 553 | Krosby Thomure | 59.28 | 9 | B Min | BB: 54.39 (+4.89s | 8.2%) | Spokane Waves Aquatic Team | 04/26/2025 | 2025 SWAT Spring Fling | |
| 554 | Judah Lee | 59.28 | 10 | B Min | BB: 54.39 (+4.89s | 8.2%) | Sunnyvale Swim Club | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 555 | Charles Tan | 59.28 | 9 | B Min | BB: 54.39 (+4.89s | 8.2%) | Eastside Aquatic Swim Team | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 556 | Elijah Wieczorek | 59.28 | 9 | B Min | BB: 54.39 (+4.89s | 8.2%) | Canon City Piranhas | 07/12/2025 | 2025 Canon City Pentathlon | |
| 557 | Kynan Wiseman | 59.29 | 9 | B Min | BB: 54.39 (+4.90s | 8.3%) | Longmont Swim Club | 06/06/2025 | 2025 CO NJ Summer Solstice Invitational | |
| 558 | Leo Liao | 59.29 | 9 | B Min | BB: 54.39 (+4.90s | 8.3%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 559 | Wyatt White | 59.30 | 9 | B Min | BB: 54.39 (+4.91s | 8.3%) | Poseidon Aquatic Club | 06/14/2025 | 2025 IST June Invtational | |
| 560 | Will Casley | 59.32 | 10 | B Min | BB: 54.39 (+4.93s | 8.3%) | Sebastopol Sea Serpents | 05/17/2025 | Neptune Swimming May Long Course Meet | |
| 561 | Kais Esmail | 59.35 | 9 | B Min | BB: 54.39 (+4.96s | 8.4%) | Bellingham Bay Swim Team | 06/20/2025 | 2025 IE VS Starlight Open | |
| 562 | Kenneth Green | 59.35 | 8 | B Min | BB: 54.39 (+4.96s | 8.4%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 563 | Tobin Wong | 59.36 | 10 | B Min | BB: 54.39 (+4.97s | 8.4%) | Daly City Dolphins | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 564 | Matthew Winn | 59.36 | 8 | B Min | BB: 54.39 (+4.97s | 8.4%) | South Snohomish Co Dolphins | 06/06/2025 | 2025 TRI CITY INVITATIONAL | |
| 565 | Jonathan Wen | 59.37 | 9 | B Min | BB: 54.39 (+4.98s | 8.4%) | Rancho San Dieguito | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 566 | Wesley Lang | 59.38 | 8 | B Min | BB: 54.39 (+4.99s | 8.4%) | River Road Swim Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 567 | Lucas Hernandez | 59.38 | 9 | B Min | BB: 54.39 (+4.99s | 8.4%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 568 | Jack Wilson | 59.41 | 10 | B Min | BB: 54.39 (+5.02s | 8.4%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 569 | Jaden Manalastas | 59.41 | 9 | B Min | BB: 54.39 (+5.02s | 8.4%) | South San Francisco Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 570 | Caleb Gray | 59.42 | 7 | B Min | BB: 54.39 (+5.03s | 8.5%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 571 | BaoSheng Wang | 59.43 | 7 | B Min | BB: 54.39 (+5.04s | 8.5%) | San Ramon Valley Aquatics | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 572 | Bryce Gardin | 59.50 | 8 | B Min | BB: 54.39 (+5.11s | 8.6%) | Rocklin Swim Team | 05/27/2023 | 2023 TYR Memorial Day Classic | |
| 573 | Wyatt Moon | 59.51 | 8 | B Min | BB: 54.39 (+5.12s | 8.6%) | Quicksilver Swimming | 05/17/2024 | Quicksilver Swimming Zone 1S LCM C B A+ Meet | |
| 574 | Ansh Dhuri | 59.51 | 9 | B Min | BB: 54.39 (+5.12s | 8.6%) | Issaquah Swim Team | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 575 | Avyan Bajpai | 59.53 | 8 | B Min | BB: 54.39 (+5.14s | 8.6%) | Hillsboro Swim Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 576 | Zachary Bixler | 59.54 | 9 | B Min | BB: 54.39 (+5.15s | 8.6%) | Inland Coastal Aquatic Club | 07/11/2025 | 2025 SI JBST All Ages NTS Meet | |
| 577 | Matthew Lai | 59.54 | 8 | B Min | BB: 54.39 (+5.15s | 8.6%) | Clovis Swim Club | 05/24/2025 | 2025 Mike Snyder Memorial | |
| 578 | Ian Wu | 59.55 | 8 | B Min | BB: 54.39 (+5.16s | 8.7%) | California Dolphins Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 579 | Ethan Yang | 59.58 | 8 | B Min | BB: 54.39 (+5.19s | 8.7%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 580 | Ryan Khalili | 59.59 | 9 | B Min | BB: 54.39 (+5.20s | 8.7%) | Highlands Ranch Aquatics | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 581 | Kenneth Zhang | 59.59 | 7 | B Min | BB: 54.39 (+5.20s | 8.7%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 582 | Leo Miyamoto | 59.61 | 10 | B Min | BB: 54.39 (+5.22s | 8.8%) | Napa Valley Swim Team | 06/21/2025 | NVST Last Chance AG Champs Summer Plunge 2025 | |
| 583 | Leon Ye | 59.64 | 9 | B Min | BB: 54.39 (+5.25s | 8.8%) | Issaquah Swim Team | 06/14/2025 | 2025 IST June Invtational | |
| 584 | Christopher Williams | 59.66 | 9 | B Min | BB: 54.39 (+5.27s | 8.8%) | Hilltop Aquatic Swim Team | 06/21/2025 | 2025 UT HAST RWB BC Medals Meet | |
| 585 | Ian Webster | 59.73 | 9 | B Min | BB: 54.39 (+5.34s | 8.9%) | Columbia River Swim Team | 06/07/2025 | 2025 OR CRST Summer Blast 2 | |
| 586 | Ishaan Malik | 59.74 | 9 | B Min | BB: 54.39 (+5.35s | 9.0%) | California Dolphins Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 587 | Jensen Rogalsky | 59.75 | 10 | B Min | BB: 54.39 (+5.36s | 9.0%) | Gold Coast Swim Team | 05/30/2025 | LA OPEN 2025 | |
| 588 | Adrian Mendoza | 59.75 | 9 | B Min | BB: 54.39 (+5.36s | 9.0%) | Front Range Barracudas | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 589 | Edward Uvejzovic | 59.85 | 9 | B Min | BB: 54.39 (+5.46s | 9.1%) | Olympus Aquatics | 06/27/2025 | 2nd Annual Water Dragon Open | |
| 590 | Miro Wang | 59.86 | 8 | B Min | BB: 54.39 (+5.47s | 9.1%) | Santa Clara Swim Club | 05/25/2024 | SCSC Pacific Swimming Long Course Intrasquad | |
| 591 | Liam Lawson | 59.87 | 9 | B Min | BB: 54.39 (+5.48s | 9.2%) | Lake Oswego Swim Club | 06/26/2025 | 2025 Howard Jones Open | |
| 592 | Watson Xie | 59.90 | 9 | B Min | BB: 54.39 (+5.51s | 9.2%) | Chinook Aquatic Club | 05/29/2025 | 2025 IE VS Apple Capital | |
| 593 | Ivan Smarshchok | 59.95 | 7 | B Min | BB: 54.39 (+5.56s | 9.3%) | King Aquatic Club | 04/25/2025 | 2025 PN KING Spring Derby | |
| 594 | Jason Yin | 59.95 | 7 | B Min | BB: 54.39 (+5.56s | 9.3%) | Santa Clara Swim Club | 05/17/2024 | Quicksilver Swimming Zone 1S LCM C B A+ Meet | |
| 595 | Jason Ma | 1:00.01 | 9 | B Min | BB: 54.39 (+5.62s | 9.4%) | Palo Alto Stanford Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 596 | Jude Foote | 1:00.03 | 9 | B Min | BB: 54.39 (+5.64s | 9.4%) | Hilltop Aquatic Swim Team | 08/01/2025 | 2025 LC Beehive Finale | |
| 597 | Andrew DiPaulo | 1:00.06 | 8 | B Min | BB: 54.39 (+5.67s | 9.4%) | Denver Athletic Club Swim Team | 04/25/2025 | 2025 CO TOPS Arena Catch Me If You Can | |
| 598 | Toma Blagojevic | 1:00.08 | 10 | B Min | BB: 54.39 (+5.69s | 9.5%) | Albany Armada Aquatics | 05/30/2025 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 599 | Connor Lau | 1:00.09 | 10 | B Min | BB: 54.39 (+5.70s | 9.5%) | Pacifica Sea Lions | 04/19/2025 | Alto Spring Jam Meet | |
| 600 | George Gray | 1:00.09 | 9 | B Min | BB: 54.39 (+5.70s | 9.5%) | Portland Aquatic Club | 06/20/2025 | 72nd Annual Ted Walker 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.