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 | |
|---|---|---|---|---|---|---|---|---|---|
| 451 | Fedor Evstigneev | 47.00 | 9 | BB Min | A: 43.09 (+3.91s | 8.3%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 452 | Adam Alkhayru | 47.01 | 9 | BB Min | A: 43.09 (+3.92s | 8.3%) | Reno Aquatic Club | 07/10/2026 | 2026 NNA Silver State Championships | |
| 453 | Sebastian Dudenko | 47.03 | 9 | BB Min | A: 43.09 (+3.94s | 8.4%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 454 | Octavio Bejarano Barraza | 47.06 | 10 | BB Min | A: 43.09 (+3.97s | 8.4%) | Centro Acuatico Universitario | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 455 | Lukas Zazhitskiy | 47.08 | 9 | BB Min | A: 43.09 (+3.99s | 8.5%) | Highlands Ranch Aquatics | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 456 | Quintus Cheung | 47.10 | 9 | BB Min | A: 43.09 (+4.01s | 8.5%) | Milpitas Aquatic Club | 05/30/2026 | MAC May 30 LCM Block Party | |
| 457 | Alexander Zhurid | 47.10 | 9 | BB Min | A: 43.09 (+4.01s | 8.5%) | Bellevue Club Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 458 | Jeremiah Lee | 47.12 | 10 | BB Min | A: 43.09 (+4.03s | 8.6%) | Chinook Aquatic Club | 05/28/2026 | 2026 IE VS Apple Capital | |
| 459 | Robert Kolesnik | 47.12 | 10 | BB Min | A: 43.09 (+4.03s | 8.6%) | Bulldog Swim Club | 07/25/2026 | Alto Last Splash | |
| 460 | Elliott Lee Chan Kam | 47.15 | 10 | BB Min | A: 43.09 (+4.06s | 8.6%) | Alto Swim Club | 06/20/2026 | Alto Summer Swelter | |
| 461 | Aiden Huang | 47.15 | 10 | BB Min | A: 43.09 (+4.06s | 8.6%) | DeAnza Cupertino Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 462 | Aleksander Zuev | 47.16 | 10 | BB Min | A: 43.09 (+4.07s | 8.6%) | Foothills Swim Team | 06/26/2026 | 2026 CO Zone 2 District Meet AAC | |
| 463 | Neal Hiuga | 47.16 | 10 | BB Min | A: 43.09 (+4.07s | 8.6%) | California Gold | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 464 | Nguyen Tran | 47.17 | 9 | BB Min | A: 43.09 (+4.08s | 8.6%) | Olympic Cascade Aquatics | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 465 | 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 | |
| 466 | Ryan Ferguson | 47.21 | 10 | BB Min | A: 43.09 (+4.12s | 8.7%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 467 | 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 | |
| 468 | Kason Cullen | 47.26 | 10 | BB Min | A: 43.09 (+4.17s | 8.8%) | Aloha Aquatics Association | 07/16/2026 | 2026 HISI LCM Championships | |
| 469 | Ryan Hu | 47.26 | 9 | BB Min | A: 43.09 (+4.17s | 8.8%) | Wave Aquatics | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 470 | Donavan Sy | 47.28 | 9 | BB Min | A: 43.09 (+4.19s | 8.9%) | Socal Aquatics Association | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 471 | Ian Susanto | 47.29 | 10 | BB Min | A: 43.09 (+4.20s | 8.9%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 472 | Lucas DeGaetani | 47.35 | 10 | BB Min | A: 43.09 (+4.26s | 9.0%) | Aquawolves Swimming | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 473 | 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 | |
| 474 | Lucas Patrick | 47.39 | 10 | BB Min | A: 43.09 (+4.30s | 9.1%) | Highlands Ranch Aquatics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 475 | 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 | |
| 476 | Gibson Haynes | 47.42 | 10 | BB Min | A: 43.09 (+4.33s | 9.1%) | Apex | 06/05/2026 | 2026 CST Summer Invitational | |
| 477 | 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 | |
| 478 | Austin Waymack | 47.45 | 9 | BB Min | A: 43.09 (+4.36s | 9.2%) | Lakewood Aquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 479 | Colby Boylan | 47.46 | 8 | BB Min | A: 43.09 (+4.37s | 9.2%) | Castle Rock Swimming | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 480 | Ahaan Maknojia | 47.47 | 10 | BB Min | A: 43.09 (+4.38s | 9.2%) | Issaquah Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 481 | 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) | |
| 482 | Ronan MurdockPerriera | 47.48 | 10 | BB Min | A: 43.09 (+4.39s | 9.2%) | AC Swim Club | 05/29/2026 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 483 | Mingke Ding | 47.50 | 10 | BB Min | A: 43.09 (+4.41s | 9.3%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 484 | Sebastian Schmidt | 47.51 | 9 | BB Min | A: 43.09 (+4.42s | 9.3%) | Bay Club Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 485 | 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 | |
| 486 | Marcus Jensen | 47.53 | 10 | BB Min | A: 43.09 (+4.44s | 9.3%) | Voltage Aquatics | 06/07/2025 | Summer Classics 2025 | |
| 487 | 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 | |
| 488 | 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 | |
| 489 | William Oubre | 47.54 | 10 | BB Min | A: 43.09 (+4.45s | 9.4%) | Salida Cyclones | 07/17/2026 | 2026 CO Alicia Leavitt Memorial | |
| 490 | Enoch Wang | 47.59 | 9 | BB Min | A: 43.09 (+4.50s | 9.5%) | Bainbridge Island Swim Club | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 491 | 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+ | |
| 492 | 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 | |
| 493 | 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 | |
| 494 | 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 | |
| 495 | 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 | |
| 496 | 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+ | |
| 497 | Sawyer Mabry | 47.73 | 10 | BB Min | A: 43.09 (+4.64s | 9.7%) | Wild West Aquatic Club | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 498 | 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 | |
| 499 | Paxton Padilla | 47.73 | 9 | BB Min | A: 43.09 (+4.64s | 9.7%) | Pueblo County Swim Team | 06/26/2026 | 2026 CO RF Blue Marlins Invitational | |
| 500 | Leo Sauter | 47.76 | 9 | BB Min | A: 43.09 (+4.67s | 9.8%) | Apex | 06/05/2026 | 2026 CST Summer 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.