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 | |
|---|---|---|---|---|---|---|---|---|---|
| 501 | Harvey Yuan | 47.18 | 8 | BB Min | A: 43.09 (+4.09s | 8.7%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 502 | James Foster | 47.20 | 9 | BB Min | A: 43.09 (+4.11s | 8.7%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 503 | Ryan Ferguson | 47.21 | 9 | BB Min | A: 43.09 (+4.12s | 8.7%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 504 | Kensington Hull | 47.21 | 10 | BB Min | A: 43.09 (+4.12s | 8.7%) | Heartland Swim Assoc | 05/23/2026 | 2026 SI HSA A All Ages NTS May 23 24 | |
| 505 | Adrito Daas | 47.21 | 10 | BB Min | A: 43.09 (+4.12s | 8.7%) | Tualatin Hills Swim Club | 06/12/2026 | 2026 THSC June Open | |
| 506 | Watson She | 47.22 | 10 | BB Min | A: 43.09 (+4.13s | 8.7%) | Bellevue Club Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 507 | Albert Aizenstat | 47.22 | 9 | BB Min | A: 43.09 (+4.13s | 8.7%) | Sandpipers of Nevada | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 508 | Ethan Holmgren | 47.24 | 10 | BB Min | A: 43.09 (+4.15s | 8.8%) | North Jeffco Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 509 | Milo Lanigan | 47.26 | 10 | BB Min | A: 43.09 (+4.17s | 8.8%) | Pikes Peak Athletics | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 510 | Nathan Nguyen | 47.27 | 10 | BB Min | A: 43.09 (+4.18s | 8.8%) | San Jose Goosemonkeys | 06/20/2026 | Zone 1 South Swim Under The Stars | |
| 511 | Ian Susanto | 47.29 | 9 | BB Min | A: 43.09 (+4.20s | 8.9%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 512 | Sven Kelley | 47.33 | 9 | BB Min | A: 43.09 (+4.24s | 9.0%) | North Jeffco Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 513 | Shane Kirkwood | 47.34 | 10 | BB Min | A: 43.09 (+4.25s | 9.0%) | Lake Oswego Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 514 | Matthew Kosov | 47.35 | 9 | BB Min | A: 43.09 (+4.26s | 9.0%) | Bay Club Aquatics | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 515 | Patrick Fullerton | 47.39 | 10 | BB Min | A: 43.09 (+4.30s | 9.1%) | South Bay Aquatics | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 516 | Jason Buhr | 47.40 | 10 | BB Min | A: 43.09 (+4.31s | 9.1%) | Pikes Peak Athletics | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 517 | Carter Hollingsworth | 47.40 | 10 | BB Min | A: 43.09 (+4.31s | 9.1%) | Castle Rock Swimming | 06/06/2025 | 2025 CO FAST June Bonanza | |
| 518 | Jeremy Lyu | 47.40 | 10 | BB Min | A: 43.09 (+4.31s | 9.1%) | Wave Aquatics | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 519 | Milan Gonzalez | 47.41 | 9 | BB Min | A: 43.09 (+4.32s | 9.1%) | Commerce Aquatics Swim Team | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 520 | Gibson Haynes | 47.42 | 10 | BB Min | A: 43.09 (+4.33s | 9.1%) | Apex | 06/05/2026 | 2026 CST Summer Invitational | |
| 521 | Christopher Roeder | 47.43 | 10 | BB Min | A: 43.09 (+4.34s | 9.2%) | Aspen Swim Club | 06/18/2026 | 2026 CO Grand Junction Invitational | |
| 522 | Oleksandr Sydorchuk | 47.43 | 10 | BB Min | A: 43.09 (+4.34s | 9.2%) | Bure-Aqua Academy | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 523 | Jacob Akerley | 47.44 | 10 | BB Min | A: 43.09 (+4.35s | 9.2%) | Rocky Mountain Rapids | 06/05/2026 | 2026 COSA Long Couse Open | |
| 524 | Austin Waymack | 47.45 | 9 | BB Min | A: 43.09 (+4.36s | 9.2%) | Lakewood Aquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 525 | William Ouyang | 47.46 | 10 | BB Min | A: 43.09 (+4.37s | 9.2%) | Unattached | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 526 | Dominik Orlov | 47.47 | 10 | BB Min | A: 43.09 (+4.38s | 9.2%) | Avon Swim Club | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 527 | Ahaan Maknojia | 47.47 | 9 | BB Min | A: 43.09 (+4.38s | 9.2%) | Issaquah Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 528 | Ronan MurdockPerriera | 47.48 | 9 | BB Min | A: 43.09 (+4.39s | 9.2%) | AC Swim Club | 05/29/2026 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 529 | Peter Hofman | 47.48 | 10 | BB Min | A: 43.09 (+4.39s | 9.2%) | Cascade Swim Club | 06/19/2026 | 2026 IE VS Starlight Open (USAS) | |
| 530 | Charles Tan | 47.49 | 10 | BB Min | A: 43.09 (+4.40s | 9.3%) | Eastside Aquatic Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 531 | William Chen | 47.49 | 10 | BB Min | A: 43.09 (+4.40s | 9.3%) | Rancho San Dieguito | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 532 | Eli Cukrov | 47.51 | 9 | BB Min | A: 43.09 (+4.42s | 9.3%) | Reno Aquatic Club | 07/10/2026 | 2026 NNA Silver State Championships | |
| 533 | Yangyang Xu | 47.52 | 10 | BB Min | A: 43.09 (+4.43s | 9.3%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 534 | Jake McNair | 47.53 | 9 | BB Min | A: 43.09 (+4.44s | 9.3%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 535 | Marcus Jensen | 47.53 | 10 | BB Min | A: 43.09 (+4.44s | 9.3%) | Voltage Aquatics | 06/07/2025 | Summer Classics 2025 | |
| 536 | Jayden Huang | 47.53 | 10 | BB Min | A: 43.09 (+4.44s | 9.3%) | Harbor Aquatics Club | 05/02/2025 | 2025 PN BC May Flowers | |
| 537 | Callahan Espiritu | 47.54 | 8 | BB Min | A: 43.09 (+4.45s | 9.4%) | Aquazot Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 538 | Oliver Song Zhang | 47.58 | 10 | BB Min | A: 43.09 (+4.49s | 9.4%) | West Coast Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 539 | Enoch Wang | 47.59 | 8 | BB Min | A: 43.09 (+4.50s | 9.5%) | Bainbridge Island Swim Club | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 540 | Tristan Wan | 47.61 | 9 | BB Min | A: 43.09 (+4.52s | 9.5%) | Palo Alto Stanford Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 541 | Alexander Stepania | 47.62 | 9 | BB Min | A: 43.09 (+4.53s | 9.5%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 542 | Jaden Manalastas | 47.65 | 10 | BB Min | A: 43.09 (+4.56s | 9.6%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | |
| 543 | Finn Blakeslee | 47.65 | 10 | BB Min | A: 43.09 (+4.56s | 9.6%) | Hood River Valley Swim Team | 06/12/2026 | 73rd Ted Walker Invitational 2026 | |
| 544 | Syd Bryant | 47.66 | 10 | BB Min | A: 43.09 (+4.57s | 9.6%) | Tsm Aquatics | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 545 | Lok Zhang | 47.67 | 10 | BB Min | A: 43.09 (+4.58s | 9.6%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 546 | William Frohnen | 47.71 | 9 | BB Min | A: 43.09 (+4.62s | 9.7%) | San Ramon Valley Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 547 | Lucas Nguyen | 47.73 | 10 | BB Min | A: 43.09 (+4.64s | 9.7%) | Valley Splash | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 548 | Sawyer Mabry | 47.73 | 9 | BB Min | A: 43.09 (+4.64s | 9.7%) | Wild West Aquatic Club | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 549 | Brooks Poshusta | 47.76 | 10 | BB Min | A: 43.09 (+4.67s | 9.8%) | Eastmont | 06/19/2026 | 2026 IE VS Starlight Open (USAS) | |
| 550 | Alexander Forward | 47.76 | 8 | BB Min | A: 43.09 (+4.67s | 9.8%) | San Jose Goosemonkeys | 06/20/2026 | Zone 1 South Swim Under The Stars | |
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.