Western Zone Zone Boys 10 & under - 50 M Back
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 601 | Charles Tan | 54.02 | 10 | B Min | BB: 49.29 (+4.73s | 8.8%) | Eastside Aquatic Swim Team | 07/11/2025 | 2025 THSC Summer Classic | |
| 602 | Julian Kreth | 54.03 | 8 | B Min | BB: 49.29 (+4.74s | 8.8%) | Tualatin Hills Swim Club | 06/06/2025 | 2025 THSC June Invitational | |
| 603 | Luke Song | 54.04 | 10 | B Min | BB: 49.29 (+4.75s | 8.8%) | Tri-city Channel Cats | 06/06/2025 | 2025 TRI CITY INVITATIONAL | |
| 604 | Deniz Gokbulut | 54.08 | 10 | B Min | BB: 49.29 (+4.79s | 8.9%) | Pro Swimming | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 605 | Beckett Rossi | 54.08 | 9 | B Min | BB: 49.29 (+4.79s | 8.9%) | Bishop Swim Team | 07/12/2025 | 2025 Silver State Championships | |
| 606 | Bo Bamford | 54.09 | 9 | B Min | BB: 49.29 (+4.80s | 8.9%) | Portland Aquatic Club | 05/30/2025 | LA OPEN 2025 | |
| 607 | Tony Chen | 54.12 | 10 | B Min | BB: 49.29 (+4.83s | 8.9%) | Wave Aquatics | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 608 | William Chen | 54.13 | 10 | B Min | BB: 49.29 (+4.84s | 8.9%) | Rancho San Dieguito | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 609 | Zaddik Fan | 54.15 | 10 | B Min | BB: 49.29 (+4.86s | 9.0%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 610 | Zakhar Breslavskyi | 54.17 | 9 | B Min | BB: 49.29 (+4.88s | 9.0%) | Boise YMCA Swim Team | 07/18/2025 | 2025 LCM Summer Championships | |
| 611 | Hudson Porter | 54.19 | 9 | B Min | BB: 49.29 (+4.90s | 9.0%) | Wave Aquatics | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 612 | Christopher Rasmuson | 54.20 | 9 | B Min | BB: 49.29 (+4.91s | 9.1%) | Bishop Swim Team | 07/12/2025 | 2025 Silver State Championships | |
| 613 | Timothy Wang | 54.21 | 10 | B Min | BB: 49.29 (+4.92s | 9.1%) | Cascadia Swimming | 11/01/2025 | Oregon City Fall Open 2025 | |
| 614 | Sebastian Monroy Reyes | 54.23 | 10 | B Min | BB: 49.29 (+4.94s | 9.1%) | Sunnyvale Swim Club | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 615 | Harrison Kay | 54.24 | 9 | B Min | BB: 49.29 (+4.95s | 9.1%) | Legacy Aquatics | 11/02/2024 | Oregon City Fall Open 2024 | |
| 616 | Mason Porter | 54.26 | 10 | B Min | BB: 49.29 (+4.97s | 9.2%) | Highlands Ranch Aquatics | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 617 | Robert Bray | 54.28 | 10 | B Min | BB: 49.29 (+4.99s | 9.2%) | Maverick Aquatics | 06/19/2025 | 2025 CO Grand Junction Invitational | |
| 618 | Adrito Daas | 54.35 | 10 | B Min | BB: 49.29 (+5.06s | 9.3%) | Tualatin Hills Swim Club | 05/02/2025 | 2025 THSC Spring Invitational | |
| 619 | Henry Fisk | 54.35 | 10 | B Min | BB: 49.29 (+5.06s | 9.3%) | Apex | 07/19/2025 | Apex Intrasquad 3 | |
| 620 | Zhouhan Yang | 54.39 | 10 | B Min | BB: 49.29 (+5.10s | 9.4%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 621 | Calex Gonzalez | 54.41 | 9 | B Min | BB: 49.29 (+5.12s | 9.4%) | Apex | 07/05/2025 | 2025 OR CRST Summer Blast 3 | |
| 622 | Luke Xu | 54.47 | 10 | B Min | BB: 49.29 (+5.18s | 9.5%) | California Dolphins Swim Team | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 623 | Samuel Martin | 54.50 | 9 | B Min | BB: 49.29 (+5.21s | 9.6%) | SaltRakers Aquatic Club | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 624 | Micah Parris | 54.51 | 8 | B Min | BB: 49.29 (+5.22s | 9.6%) | Sunnyvale Swim Club | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 625 | Derek Feng | 54.51 | 10 | B Min | BB: 49.29 (+5.22s | 9.6%) | San Ramon Valley Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 626 | Noah Vukojevic | 54.51 | 8 | B Min | BB: 49.29 (+5.22s | 9.6%) | Olympus Aquatics | 05/20/2025 | Kearns LC Classic | |
| 627 | Wylee Towner-DeMoe | 54.51 | 9 | B Min | BB: 49.29 (+5.22s | 9.6%) | Team Eugene Aquatics | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 628 | Jaden Manalastas | 54.52 | 9 | B Min | BB: 49.29 (+5.23s | 9.6%) | South San Francisco Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 629 | Peter Choruby | 54.53 | 10 | B Min | BB: 49.29 (+5.24s | 9.6%) | Mount Hood Aquatics | 06/26/2025 | 2025 Howard Jones Open | |
| 630 | Wesley Clemens | 54.54 | 9 | B Min | BB: 49.29 (+5.25s | 9.6%) | Bay Club Aquatics | 07/11/2025 | 2025 SI JBST All Ages NTS Meet | |
| 631 | Sebastian McNary | 54.61 | 10 | B Min | BB: 49.29 (+5.32s | 9.7%) | Tiger Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 632 | Rory Lake | 54.62 | 10 | B Min | BB: 49.29 (+5.33s | 9.8%) | Hillsboro Swim Team | 06/06/2025 | 2025 CST Summer Invitational | |
| 633 | Orion Boudreaux | 54.65 | 10 | B Min | BB: 49.29 (+5.36s | 9.8%) | Napa Valley Swim Team | 06/21/2025 | NVST Last Chance AG Champs Summer Plunge 2025 | |
| 634 | Reyansh Kini | 54.67 | 10 | B Min | BB: 49.29 (+5.38s | 9.8%) | San Ramon Valley Aquatics | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 635 | Mikail Adlinsyah | 54.67 | 9 | B Min | BB: 49.29 (+5.38s | 9.8%) | Swim Excellence Academy | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 636 | Alexander Woodard | 54.67 | 9 | B Min | BB: 49.29 (+5.38s | 9.8%) | COSA Swimming | 05/30/2025 | 2025 CO COSA Long Course Open | |
| 637 | Shuyi Tan | 54.67 | 9 | B Min | BB: 49.29 (+5.38s | 9.8%) | Blue Dolphin Swim Team | 06/14/2025 | 2025 IST June Invtational | |
| 638 | Sebastian Bagga | 54.71 | 10 | B Min | BB: 49.29 (+5.42s | 9.9%) | South Valley Makos | 06/28/2024 | 2024 Valley Splash Zone 1S LCM C B A+ | |
| 639 | Richard Tang | 54.73 | 10 | B Min | BB: 49.29 (+5.44s | 9.9%) | Triton Aquatics Club | 04/19/2025 | Alto Spring Jam Meet | |
| 640 | Noah Chiu | 54.74 | 10 | B Min | BB: 49.29 (+5.45s | 10.0%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 641 | Aaron im | 54.75 | 9 | B Min | BB: 49.29 (+5.46s | 10.0%) | West Coast Aquatics | 05/29/2025 | 2025 IE VS Apple Capital | |
| 642 | Alexander Forward | 54.75 | 8 | B Min | BB: 49.29 (+5.46s | 10.0%) | San Jose Goosemonkeys | 06/27/2025 | Valley Splash | |
| 643 | Gabriel Hawkins | 54.79 | 10 | B Min | BB: 49.29 (+5.50s | 10.0%) | Sandpoint Sharks Swim Club | 01/16/2026 | 2026 Hells Canyon Invitational | |
| 644 | Henry Jian | 54.79 | 10 | B Min | BB: 49.29 (+5.50s | 10.0%) | Eastside Aquatic Swim Team | 07/11/2025 | 2025 THSC Summer Classic | |
| 645 | Aleksander Zuev | 54.79 | 9 | B Min | BB: 49.29 (+5.50s | 10.0%) | Foothills Swim Team | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 646 | Remington Kalicinski | 54.79 | 9 | B Min | BB: 49.29 (+5.50s | 10.0%) | Wave Aquatics | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 647 | Radin Yazdan | 54.79 | 10 | B Min | BB: 49.29 (+5.50s | 10.0%) | VillaSport Swim Team | 07/11/2025 | 2025 THSC Summer Classic | |
| 648 | Ryder McDermitt | 54.83 | 8 | B Min | BB: 49.29 (+5.54s | 10.1%) | Flatiron Athletic Club | 07/11/2025 | 2025 CO NJ Firecracker Invite | |
| 649 | Kenneth Green | 54.89 | 9 | B Min | BB: 49.29 (+5.60s | 10.2%) | Pro Swimming | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 650 | William Oubre | 54.90 | 10 | B Min | BB: 49.29 (+5.61s | 10.2%) | Salida Cyclones | 06/27/2025 | 2025 CO Alicia Leavitt Memorial Open | |
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.