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 | |
|---|---|---|---|---|---|---|---|---|---|
| 351 | Roman Tsikalov | 49.17 | 10 | BB Min | A: 43.09 (+6.08s | 12.4%) | Otter Swim Club | 06/06/2025 | 2025 DACA LC CBA+ Meet | |
| 352 | Caleb McGovern | 49.23 | 10 | BB Min | A: 43.09 (+6.14s | 12.5%) | Portland Aquatic Club | 11/14/2025 | GACC PAC 12 U Sprint Dual | |
| 353 | Jose Perez | 49.24 | 10 | BB Min | A: 43.09 (+6.15s | 12.5%) | Lincoln City Swim Club | 03/07/2026 | Valley Coast Swim League 2026 | |
| 354 | Everett Philipps | 49.25 | 10 | BB Min | A: 43.09 (+6.16s | 12.5%) | Issaquah Swim Team | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 355 | Emmett Curry | 49.26 | 10 | BB Min | A: 43.09 (+6.17s | 12.5%) | Seattle Metropolitan Aquatic C | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 356 | Thomas Cooke | 49.27 | 9 | BB Min | A: 43.09 (+6.18s | 12.5%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 357 | Sebastian Hartline | 49.28 | 10 | BB Min | A: 43.09 (+6.19s | 12.6%) | Multnomah Athletic Club | 05/02/2025 | 2025 THSC Spring Invitational | |
| 358 | Wilder Toohey | 49.33 | 10 | B Min | BB: 49.29 (+0.04s | 0.1%) | La Grande Swim Club | 07/05/2025 | Pendleton Open 2025 | |
| 359 | Theodore Gerber | 49.42 | 10 | B Min | BB: 49.29 (+0.13s | 0.3%) | Wave Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 360 | Luke Cheng | 49.45 | 10 | B Min | BB: 49.29 (+0.16s | 0.3%) | Otter Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 361 | Milo Gordon | 49.45 | 8 | B Min | BB: 49.29 (+0.16s | 0.3%) | Flatiron Athletic Club | 06/06/2025 | 2025 CO NJ Summer Solstice Invitational | |
| 362 | Milo Lanigan | 49.50 | 10 | B Min | BB: 49.29 (+0.21s | 0.4%) | Pikes Peak Athletics | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 363 | Luke Chaikriangkrai | 49.54 | 9 | B Min | BB: 49.29 (+0.25s | 0.5%) | Pro Swimming | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 364 | John Griswold | 49.56 | 10 | B Min | BB: 49.29 (+0.27s | 0.5%) | Alameda Gators | 06/20/2025 | Zone 2 Last Chance To AG Champs | |
| 365 | Nicholas Harrold | 49.56 | 10 | B Min | BB: 49.29 (+0.27s | 0.5%) | Pikes Peak Athletics | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 366 | Leo Ioffe | 49.58 | 9 | B Min | BB: 49.29 (+0.29s | 0.6%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 367 | Knox Monsivais | 49.65 | 10 | B Min | BB: 49.29 (+0.36s | 0.7%) | Lehi Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 368 | Hunter Atkins | 49.66 | 10 | B Min | BB: 49.29 (+0.37s | 0.7%) | Palo Alto Stanford Aquatics | 05/30/2025 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 369 | Eli Bywater | 49.68 | 8 | B Min | BB: 49.29 (+0.39s | 0.8%) | South Davis Aquatics Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 370 | Ico Tamayo | 49.75 | 9 | B Min | BB: 49.29 (+0.46s | 0.9%) | Cali Piranha Swim Team | 07/11/2025 | 2025 SI JBST All Ages NTS Meet | |
| 371 | Aden Sun | 49.78 | 10 | B Min | BB: 49.29 (+0.49s | 1.0%) | Burlingame Aquatics | 06/13/2025 | 2025 CO CSI Long Course Open | |
| 372 | Gage Sena | 49.80 | 10 | B Min | BB: 49.29 (+0.51s | 1.0%) | Lamarlins Swim Team, Inc. | 07/12/2025 | 2025 Canon City Pentathlon | |
| 373 | Ezz Abdelhadi | 49.81 | 10 | B Min | BB: 49.29 (+0.52s | 1.0%) | Palo Alto Stanford Aquatics | 05/24/2025 | 2025 Mike Snyder Memorial | |
| 374 | Simon Stapley | 49.85 | 10 | B Min | BB: 49.29 (+0.56s | 1.1%) | Olympus Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 375 | Yeim Jung | 49.86 | 10 | B Min | BB: 49.29 (+0.57s | 1.1%) | Wave Aquatics | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 376 | Caleb Tos | 49.87 | 10 | B Min | BB: 49.29 (+0.58s | 1.2%) | Tule Nation Tritons | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 377 | Max Peterson | 49.88 | 10 | B Min | BB: 49.29 (+0.59s | 1.2%) | Cottonwood Heights Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 378 | Adam Zamora | 49.89 | 10 | B Min | BB: 49.29 (+0.60s | 1.2%) | La Grande Swim Club | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 379 | Nhat Tran | 49.92 | 9 | B Min | BB: 49.29 (+0.63s | 1.3%) | Olympic Cascade Aquatics | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 380 | Edward Uvejzovic | 49.94 | 10 | B Min | BB: 49.29 (+0.65s | 1.3%) | Olympus Aquatics | 06/27/2025 | 2nd Annual Water Dragon Open | |
| 381 | Dashel Archer | 49.94 | 10 | B Min | BB: 49.29 (+0.65s | 1.3%) | Evergreen Hurricanes | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 382 | Daniel Kalinovski | 49.95 | 10 | B Min | BB: 49.29 (+0.66s | 1.3%) | Otter Swim Club | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 383 | Jaxon Mendoza | 49.97 | 10 | B Min | BB: 49.29 (+0.68s | 1.4%) | San Benito Aquatics | 05/18/2024 | San Benito Aquatics C B A+ | |
| 384 | Benjamin Dussel | 49.98 | 10 | B Min | BB: 49.29 (+0.69s | 1.4%) | Multnomah Athletic Club | 06/06/2025 | 2025 CST Summer Invitational | |
| 385 | Hunter Lind | 50.04 | 9 | B Min | BB: 49.29 (+0.75s | 1.5%) | Wasatch Front Fish Market | 07/17/2025 | 2025 UTAGS LC Championships | |
| 386 | Oliver Skoubo | 50.05 | 10 | B Min | BB: 49.29 (+0.76s | 1.5%) | River Road Swim Team | 05/02/2025 | 2025 AAA May LC Invitational | |
| 387 | Henry Fredericks | 50.07 | 8 | B Min | BB: 49.29 (+0.78s | 1.6%) | COSA Swimming | 04/26/2025 | 2025 CO COSA Spring LC Kick Off | |
| 388 | Jamie Russell | 50.09 | 9 | B Min | BB: 49.29 (+0.80s | 1.6%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 389 | Adrian Goo | 50.15 | 10 | B Min | BB: 49.29 (+0.86s | 1.7%) | Walnut Creek Aquabears | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 390 | Anzel Annan | 50.17 | 9 | B Min | BB: 49.29 (+0.88s | 1.8%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 391 | Adam Kirk | 50.24 | 10 | B Min | BB: 49.29 (+0.95s | 1.9%) | Palo Alto Stanford Aquatics | 05/16/2025 | 2025 DACA LC CBA Meet | |
| 392 | Ernesto Galindo Sandoval | 50.25 | 10 | B Min | BB: 49.29 (+0.96s | 1.9%) | Halcones Marinos Capn | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 393 | Ethan Williams | 50.32 | 10 | B Min | BB: 49.29 (+1.03s | 2.0%) | SaltRakers Aquatic Club | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 394 | Rowan Sargent | 50.32 | 9 | B Min | BB: 49.29 (+1.03s | 2.0%) | Unattached | 07/11/2025 | 2025 CO NJ Firecracker Invite | |
| 395 | Johnathan Wang | 50.33 | 9 | B Min | BB: 49.29 (+1.04s | 2.1%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 396 | Theodore McElderry | 50.36 | 10 | B Min | BB: 49.29 (+1.07s | 2.1%) | Utah Valley Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 397 | Gabriel Saldanha | 50.38 | 9 | B Min | BB: 49.29 (+1.09s | 2.2%) | Wasatch Front Fish Market | 08/01/2025 | 2025 LC Beehive Finale | |
| 398 | Hugo Pace | 50.39 | 10 | B Min | BB: 49.29 (+1.10s | 2.2%) | Pacifica Sea Lions | 05/17/2025 | 2025 LAMV SCM C B A+ | |
| 399 | Ivan Smarshchok | 50.43 | 8 | B Min | BB: 49.29 (+1.14s | 2.3%) | King Aquatic Club | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 400 | Daniel Klyzhko | 50.44 | 10 | B: 44.49 (+5.95s | 11.8%) | Cypress Fairbanks Swim Club | 06/13/2025 | 2025 ST ASC Firecracker | ||
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.