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 | |
|---|---|---|---|---|---|---|---|---|---|
| 551 | Rhys Mehta | 48.50 | 9 | BB Min | A: 43.09 (+5.41s | 11.2%) | Tualatin Hills Swim Club | 06/12/2026 | 2026 THSC June Open | |
| 552 | Matvii Medvediev | 48.50 | 9 | BB Min | A: 43.09 (+5.41s | 11.2%) | Tornadoes Swim Team | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 553 | Oliver Li | 48.54 | 10 | BB Min | A: 43.09 (+5.45s | 11.2%) | Eastside Aquatic Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 554 | Hudson Goodrich | 48.55 | 9 | BB Min | A: 43.09 (+5.46s | 11.2%) | Denver Swim Academy | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 555 | Boone Day | 48.56 | 8 | BB Min | A: 43.09 (+5.47s | 11.3%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 556 | William Rickert | 48.56 | 8 | BB Min | A: 43.09 (+5.47s | 11.3%) | South Orange County Aquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 557 | Christopher Scheetz | 48.58 | 9 | BB Min | A: 43.09 (+5.49s | 11.3%) | COSA Swimming | 06/05/2026 | 2026 COSA Long Couse Open | |
| 558 | Jacob Chen | 48.60 | 9 | BB Min | A: 43.09 (+5.51s | 11.3%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 559 | William Song | 48.60 | 8 | BB Min | A: 43.09 (+5.51s | 11.3%) | Seattle Metropolitan Aquatic C | 05/28/2026 | 2026 IE VS Apple Capital | |
| 560 | Daniel Gerasimov | 48.62 | 9 | BB Min | A: 43.09 (+5.53s | 11.4%) | Los Gatos Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 561 | Philip McDevitt | 48.62 | 10 | BB Min | A: 43.09 (+5.53s | 11.4%) | Chinook Aquatic Club | 06/12/2026 | 2026 THSC June Open | |
| 562 | Breydan Maumausolo-Sale | 48.64 | 9 | BB Min | A: 43.09 (+5.55s | 11.4%) | Kamehameha Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 563 | Nathanael Richards | 48.65 | 10 | BB Min | A: 43.09 (+5.56s | 11.4%) | Spokane Waves Aquatic Team | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 564 | Finn Swarts | 48.67 | 8 | BB Min | A: 43.09 (+5.58s | 11.5%) | North Jeffco Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 565 | Felix Franson | 48.68 | 9 | BB Min | A: 43.09 (+5.59s | 11.5%) | Pikes Peak Athletics | 06/19/2026 | 2026 CO Falfins Long Course Open | |
| 566 | Hogan Crow | 48.70 | 10 | BB Min | A: 43.09 (+5.61s | 11.5%) | Unattached | 04/17/2026 | 2026 Shark Attack Copied | |
| 567 | Ethan Liu | 48.72 | 9 | BB Min | A: 43.09 (+5.63s | 11.6%) | Highlands Ranch Aquatics | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 568 | Zhencheng Xu | 48.73 | 10 | BB Min | A: 43.09 (+5.64s | 11.6%) | Alto Swim Club | 06/20/2026 | Alto Summer Swelter | |
| 569 | Cameron Lim | 48.74 | 9 | BB Min | A: 43.09 (+5.65s | 11.6%) | Seattle Metropolitan Aquatic C | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 570 | Patrick Keene | 48.75 | 9 | BB Min | A: 43.09 (+5.66s | 11.6%) | Univ. of Denver Hilltoppers | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 571 | Dresden Ramirez | 48.75 | 10 | BB Min | A: 43.09 (+5.66s | 11.6%) | Legacy Aquatics | 07/31/2026 | 2026 NE NSSC New England Summer Championship | |
| 572 | Ian Lee | 48.75 | 8 | BB Min | A: 43.09 (+5.66s | 11.6%) | Bellevue Club Swim Team | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 573 | Greyson Straka | 48.76 | 9 | BB Min | A: 43.09 (+5.67s | 11.6%) | Evergreen Hurricanes | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 574 | Craig Beasley | 48.79 | 9 | BB Min | A: 43.09 (+5.70s | 11.7%) | Multnomah Athletic Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 575 | Ryan Song | 48.80 | 9 | BB Min | A: 43.09 (+5.71s | 11.7%) | Wasc | 06/11/2026 | 2026 SCS June AG Invite | |
| 576 | Matthew DiRuzzo | 48.82 | 9 | BB Min | A: 43.09 (+5.73s | 11.7%) | SlipStream Aquatics | 07/10/2026 | 2026 CO Firecracker Last Chance Invite | |
| 577 | Kevin Zhang | 48.82 | 9 | BB Min | A: 43.09 (+5.73s | 11.7%) | Wave Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 578 | Brody Puska | 48.83 | 9 | BB Min | A: 43.09 (+5.74s | 11.8%) | Apex | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 579 | Declan Sederholm | 48.87 | 10 | BB Min | A: 43.09 (+5.78s | 11.8%) | Hilltop Aquatic Swim Team | 06/21/2025 | 2025 UT HAST RWB Invitational | |
| 580 | Wylee Towner-DeMoe | 48.88 | 10 | BB Min | A: 43.09 (+5.79s | 11.8%) | Team Eugene Aquatics | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 581 | Dylan Rapp | 48.88 | 10 | BB Min | A: 43.09 (+5.79s | 11.8%) | Front Range Barracudas | 05/23/2026 | 2026 CO CUDA Vs AQUA Dual | |
| 582 | Zihan Zhao | 48.93 | 10 | BB Min | A: 43.09 (+5.84s | 11.9%) | Pacific Dragons Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 583 | Adam Alqaqaa | 48.95 | 10 | BB Min | A: 43.09 (+5.86s | 12.0%) | Front Range Barracudas | 07/10/2026 | 2026 CO NCS Gold District Championships | |
| 584 | Grayson Bennett | 48.96 | 8 | BB Min | A: 43.09 (+5.87s | 12.0%) | Spokane Waves Aquatic Team | 04/17/2026 | 2026 Shark Attack Copied | |
| 585 | Piradon Pukrittayakamee | 48.96 | 9 | BB Min | A: 43.09 (+5.87s | 12.0%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 586 | Charles Fikhman | 48.97 | 10 | BB Min | A: 43.09 (+5.88s | 12.0%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 587 | Ori Lowenthal | 48.97 | 10 | BB Min | A: 43.09 (+5.88s | 12.0%) | Unattached | 07/10/2026 | 2026 CO Firecracker Last Chance Invite | |
| 588 | Emmett Curry | 49.01 | 10 | BB Min | A: 43.09 (+5.92s | 12.1%) | Seattle Metropolitan Aquatic C | 05/28/2026 | 2026 IE VS Apple Capital | |
| 589 | Ethan Lyu | 49.01 | 9 | BB Min | A: 43.09 (+5.92s | 12.1%) | Tri-city Channel Cats | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 590 | Ayansh Sinha | 49.01 | 10 | BB Min | A: 43.09 (+5.92s | 12.1%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 591 | Ico Tamayo | 49.02 | 9 | BB Min | A: 43.09 (+5.93s | 12.1%) | Cali Piranha Swim Team | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 592 | Parker Lozes | 49.04 | 9 | BB Min | A: 43.09 (+5.95s | 12.1%) | Colorado Stingrays Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 593 | Andrew Kenly | 49.06 | 10 | BB Min | A: 43.09 (+5.97s | 12.2%) | Avon Swim Club | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 594 | Atharv Choubey | 49.06 | 9 | BB Min | A: 43.09 (+5.97s | 12.2%) | Olympic Cascade Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 595 | Jayden Chen | 49.07 | 10 | BB Min | A: 43.09 (+5.98s | 12.2%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 596 | William Goodrich | 49.13 | 7 | BB Min | A: 43.09 (+6.04s | 12.3%) | Denver Swim Academy | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 597 | Abraham Urrutia | 49.14 | 10 | BB Min | A: 43.09 (+6.05s | 12.3%) | Foothills Swim Team | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 598 | Alex Chen | 49.14 | 9 | BB Min | A: 43.09 (+6.05s | 12.3%) | Seattle Metropolitan Aquatic C | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 599 | Teo Dickens | 49.16 | 10 | BB Min | A: 43.09 (+6.07s | 12.3%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 600 | Gavin Lowe | 49.18 | 6 | BB Min | A: 43.09 (+6.09s | 12.4%) | Tri Valley Aquatics | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
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.