Western Zone Zone Boys 10 & under - 50 M Free
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 401 | Jaroslav Rezac | 39.93 | 9 | B Min | BB: 39.79 (+0.14s | 0.4%) | Longmont Swim Club | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 402 | Zhouhan Yang | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 403 | Anthony Ma | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | Cottonwood Heights Aquatics | 05/08/2025 | 2025 HAST Janet Oles LC Classic | |
| 404 | Samuel Zhou | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | Bay Club Panthers | 05/02/2026 | Alto Spring Jam CBA | |
| 405 | Ahaan Iragavarapu | 39.96 | 10 | B Min | BB: 39.79 (+0.17s | 0.4%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 406 | Tatsumasa Sekine | 39.97 | 9 | B Min | BB: 39.79 (+0.18s | 0.5%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 407 | Ethan Holmgren | 39.98 | 10 | B Min | BB: 39.79 (+0.19s | 0.5%) | North Jeffco Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 408 | Charles Tan | 39.99 | 10 | B Min | BB: 39.79 (+0.20s | 0.5%) | Eastside Aquatic Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 409 | Joshua Wheaton | 39.99 | 10 | B Min | BB: 39.79 (+0.20s | 0.5%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 410 | Walter Ogdon | 39.99 | 10 | B Min | BB: 39.79 (+0.20s | 0.5%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 411 | Ico Tamayo | 40.02 | 9 | B Min | BB: 39.79 (+0.23s | 0.6%) | Cali Piranha Swim Team | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 412 | Aiden Hu | 40.03 | 10 | B Min | BB: 39.79 (+0.24s | 0.6%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 413 | Jamie Pan | 40.04 | 10 | B Min | BB: 39.79 (+0.25s | 0.6%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 414 | Vivaan Jagadish | 40.05 | 10 | B Min | BB: 39.79 (+0.26s | 0.6%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 415 | Cayden Lin | 40.05 | 10 | B Min | BB: 39.79 (+0.26s | 0.6%) | Rosemead Rapids | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 416 | Theodore Puscas | 40.05 | 9 | B Min | BB: 39.79 (+0.26s | 0.6%) | Issaquah Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 417 | Isaiah Fadillah | 40.07 | 10 | B Min | BB: 39.79 (+0.28s | 0.7%) | California Dolphins Swim Team | 05/02/2026 | Alto Spring Jam CBA | |
| 418 | Pranav Chandramouli | 40.07 | 10 | B Min | BB: 39.79 (+0.28s | 0.7%) | Gold\\\\\\'s Aquatics Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 419 | Demid Mozgov | 40.08 | 10 | B Min | BB: 39.79 (+0.29s | 0.7%) | Bure-Aqua Academy | 05/16/2025 | 2025 CO ACES Spring Invite | |
| 420 | Oliver Pearce | 40.09 | 10 | B Min | BB: 39.79 (+0.30s | 0.7%) | Aces Swim Club | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 421 | Jonathan Engle | 40.11 | 9 | B Min | BB: 39.79 (+0.32s | 0.8%) | Mission Valley YMCA | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 422 | Gabriel Terrones | 40.11 | 10 | B Min | BB: 39.79 (+0.32s | 0.8%) | Team Eugene Aquatics | 06/06/2025 | 2025 THSC June Invitational | |
| 423 | Eli Lawson | 40.12 | 9 | B Min | BB: 39.79 (+0.33s | 0.8%) | Dolphin Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 424 | Aiden Huang | 40.13 | 10 | B Min | BB: 39.79 (+0.34s | 0.8%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 425 | Cameron Lim | 40.13 | 9 | B Min | BB: 39.79 (+0.34s | 0.8%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 426 | Vincent Nan | 40.14 | 10 | B Min | BB: 39.79 (+0.35s | 0.9%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 427 | Liber Liao | 40.15 | 8 | B Min | BB: 39.79 (+0.36s | 0.9%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 428 | Weston Leingang | 40.16 | 10 | B Min | BB: 39.79 (+0.37s | 0.9%) | Avon Swim Club | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 429 | Ethan Wang | 40.16 | 9 | B Min | BB: 39.79 (+0.37s | 0.9%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 430 | James Covey | 40.19 | 7 | B Min | BB: 39.79 (+0.40s | 1.0%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 431 | Martin Li | 40.20 | 9 | B Min | BB: 39.79 (+0.41s | 1.0%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 432 | Nguyen Tran | 40.20 | 8 | B Min | BB: 39.79 (+0.41s | 1.0%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 433 | Wyatt Harrison | 40.22 | 9 | B Min | BB: 39.79 (+0.43s | 1.1%) | Univ. of Denver Hilltoppers | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 434 | Caleb Taussig | 40.24 | 9 | B Min | BB: 39.79 (+0.45s | 1.1%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 435 | Andreas Kwiram | 40.26 | 9 | B Min | BB: 39.79 (+0.47s | 1.2%) | Hills Hurricane Swimming | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 436 | Phinnaeus Johnson | 40.28 | 10 | B Min | BB: 39.79 (+0.49s | 1.2%) | South Valley Makos | 06/27/2025 | Valley Splash | |
| 437 | Evan Guan | 40.29 | 10 | B Min | BB: 39.79 (+0.50s | 1.2%) | Chinook Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 438 | Alexander Stepania | 40.29 | 9 | B Min | BB: 39.79 (+0.50s | 1.2%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 439 | Easton Fairbank | 40.30 | 8 | B Min | BB: 39.79 (+0.51s | 1.3%) | Flatiron Athletic Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 440 | Ezra Junio | 40.31 | 10 | B Min | BB: 39.79 (+0.52s | 1.3%) | Legacy Aquatics | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 441 | Peter Hofman | 40.33 | 10 | B Min | BB: 39.79 (+0.54s | 1.3%) | Cascade Swim Club | 06/20/2025 | 2025 IE VS Starlight Open | |
| 442 | Gage Sena | 40.35 | 10 | B Min | BB: 39.79 (+0.56s | 1.4%) | Lamarlins Swim Team, Inc. | 07/12/2025 | 2025 Canon City Pentathlon | |
| 443 | Wynn Kitsadaviseksak | 40.37 | 10 | B Min | BB: 39.79 (+0.58s | 1.4%) | Hills Hurricane Swimming | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 444 | Aaden Foster | 40.37 | 10 | B Min | BB: 39.79 (+0.58s | 1.4%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 445 | Calvin Larkin | 40.40 | 9 | B Min | BB: 39.79 (+0.61s | 1.5%) | Bend Swim Club | 06/20/2025 | Bend Swim Club Sun Country Invite | |
| 446 | Ludwik Pawelski | 40.42 | 9 | B Min | BB: 39.79 (+0.63s | 1.6%) | Sparks Piranhas Swim Team | 06/20/2025 | Reno Aquatic Club Gamble | |
| 447 | Christopher Williams | 40.43 | 10 | B Min | BB: 39.79 (+0.64s | 1.6%) | Hilltop Aquatic Swim Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 448 | Daniel Reschke | 40.44 | 10 | B Min | BB: 39.79 (+0.65s | 1.6%) | Alto Swim Club | 06/27/2025 | Alto Summer Swelter | |
| 449 | Keller Kirkpatrick | 40.44 | 9 | B Min | BB: 39.79 (+0.65s | 1.6%) | Lake Oswego Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 450 | Theodore Goldstein | 40.45 | 10 | B Min | BB: 39.79 (+0.66s | 1.6%) | Univ. of Denver Hilltoppers | 05/16/2026 | 2026 CO Hilltopper Invite | |
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.