Western Zone Zone Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1451 | William MacDonald | 53.56 | 10 | B: 53.39 (+0.17s | 0.3%) | Wasatch Water Dragons | 11/06/2025 | 2025 OA Thanksgiving Turkey Meet | ||
| 1452 | Lucas Dou | 53.58 | 9 | B: 53.39 (+0.19s | 0.4%) | Blue Dolphin Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 3 WAVE | ||
| 1453 | Lander Hamilton | 53.59 | 9 | B: 53.39 (+0.20s | 0.4%) | Aces Swim Club | 11/23/2024 | 2024 CO CUDA Pentathlon XXXVII | ||
| 1454 | Rigas Papanikolaou | 53.60 | 10 | B: 53.39 (+0.21s | 0.4%) | Maui Dolphins Swim Club | 02/07/2026 | 2026 MAGSA A B SCY LAST CHANCE MEET | ||
| 1455 | Radin Yazdan | 53.60 | 10 | B: 53.39 (+0.21s | 0.4%) | Tualatin Hills Swim Club | 01/16/2026 | 2026 THSC 14 U Winter Showcase | ||
| 1456 | Derek Zhu | 53.61 | 9 | B: 53.39 (+0.22s | 0.4%) | Chinook Aquatic Club | 11/09/2025 | 2025 PN C Pentathlon | ||
| 1457 | Isaac Welmerink | 53.62 | 9 | B: 53.39 (+0.23s | 0.4%) | Lakeridge Swim Team | 01/16/2026 | 2026 Blizzard Blast Swim Meet | ||
| 1458 | Callan Purcell | 53.63 | 10 | B: 53.39 (+0.24s | 0.4%) | Life Time Colorado Swim Club | 02/13/2026 | 2026 CO Valentine Open | ||
| 1459 | Albert Yang | 53.63 | 8 | B: 53.39 (+0.24s | 0.4%) | California Dolphins Swim Team | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | ||
| 1460 | James Dyatlovitsky | 53.65 | 7 | B: 53.39 (+0.26s | 0.5%) | Excel Aquatics | 11/01/2025 | 2025 Pumpkin Spice Splash | ||
| 1461 | Caleb Hurley | 53.65 | 8 | B: 53.39 (+0.26s | 0.5%) | San Ramon Valley Aquatics | 09/28/2024 | Orinda Aquatics SC C B BB+ Meet | ||
| 1462 | Ori Lowenthal | 53.67 | 9 | B: 53.39 (+0.28s | 0.5%) | Front Range Barracudas | 01/16/2026 | 2026 CO CUDA Classic | ||
| 1463 | Brandon Chen | 53.67 | 8 | B: 53.39 (+0.28s | 0.5%) | Coronado Swim -team Elite | 10/11/2025 | 2025 SI RSD All Ages B C Meet | ||
| 1464 | Cody Darnell | 53.68 | 10 | B: 53.39 (+0.29s | 0.5%) | South Valley Makos | 10/17/2025 | 2025 KING OF THE HILL CHALLENGE | ||
| 1465 | Brixton Kendall | 53.68 | 10 | B: 53.39 (+0.29s | 0.5%) | Killer Whales Swim Club | 01/10/2026 | 2026 Hood River Winter Invitational | ||
| 1466 | Benjamin Krett | 53.68 | 9 | B: 53.39 (+0.29s | 0.5%) | Denver Swim Academy | 01/23/2026 | 2026 CO TOPS Colorado Open | ||
| 1467 | Micah Parris | 53.69 | 8 | B: 53.39 (+0.30s | 0.6%) | Sunnyvale Swim Club | 10/25/2025 | 2025 SUNN Fall Classic | ||
| 1468 | Fanch Hamon | 53.69 | 10 | B: 53.39 (+0.30s | 0.6%) | Excel Aquatics | 03/29/2025 | 2025 PN Spring Finale Division 3 | ||
| 1469 | Noah Kim | 53.69 | 10 | B: 53.39 (+0.30s | 0.6%) | Issaquah Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | ||
| 1470 | Edward Byrnes | 53.70 | 10 | B: 53.39 (+0.31s | 0.6%) | Las Cruces Aquatic Team | 01/23/2026 | 2026 BD JCAT IMX 2026 | ||
| 1471 | Robin Zhuang | 53.70 | 8 | B: 53.39 (+0.31s | 0.6%) | Brea Aquatics | 11/21/2025 | 2025 CA MVN Turkey Classic | ||
| 1472 | James Sowl | 53.71 | 10 | B: 53.39 (+0.32s | 0.6%) | Denver Swim Academy | 01/23/2026 | 2026 CO TOPS Colorado Open | ||
| 1473 | James Foster | 53.72 | 9 | B: 53.39 (+0.33s | 0.6%) | Aquawolves Swimming | 01/16/2026 | 2026 CO CUDA Classic | ||
| 1474 | Ethan Rana | 53.72 | 9 | B: 53.39 (+0.33s | 0.6%) | Highlands Ranch Aquatics | 09/28/2024 | 2024 CO HRA Age Group Intra Squad | ||
| 1475 | George Bilyk | 53.73 | 8 | B: 53.39 (+0.34s | 0.6%) | Issaquah Swim Team | 11/15/2025 | 2025 PN IST November Invitational | ||
| 1476 | Brant Davis | 53.74 | 7 | B: 53.39 (+0.35s | 0.7%) | Pueblo County Swim Team | 02/13/2026 | 2026 CO Valentine Open | ||
| 1477 | Reyansh Kini | 53.75 | 10 | B: 53.39 (+0.36s | 0.7%) | San Ramon Valley Aquatics | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | ||
| 1478 | Lincoln Zhang | 53.75 | 9 | B: 53.39 (+0.36s | 0.7%) | Pro Swimming | 12/06/2025 | 2025 PN Fall Divisionals, Division 3 WAVE | ||
| 1479 | Walden Tanaka | 53.77 | 10 | B: 53.39 (+0.38s | 0.7%) | Bay Club Aquatics | 12/05/2025 | SI 2025 RSD All Ages WAG Max | ||
| 1480 | Pranav Chandramouli | 53.78 | 10 | B: 53.39 (+0.39s | 0.7%) | Gold\\\\\\'s Aquatics Club | 01/31/2026 | 2026 PN BISC Bluefin Invitational | ||
| 1481 | Eric Zhao | 53.80 | 9 | B: 53.39 (+0.41s | 0.8%) | Los Angeles Swim Club | 12/06/2025 | 2025 CA CANY Candy Cane | ||
| 1482 | Carter Pyron | 53.81 | 9 | B: 53.39 (+0.42s | 0.8%) | Aquawolves Swimming | 01/04/2026 | 2026 CO AAC Sprint Eliminator Invite | ||
| 1483 | Boden Neveu | 53.81 | 10 | B: 53.39 (+0.42s | 0.8%) | Alameda Gators | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | ||
| 1484 | Daniel Gerasimov | 53.82 | 8 | B: 53.39 (+0.43s | 0.8%) | Los Gatos Swim Club | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | ||
| 1485 | Jasper Tian | 53.82 | 9 | B: 53.39 (+0.43s | 0.8%) | Unattached | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | ||
| 1486 | Dmitry Temkin | 53.84 | 9 | B: 53.39 (+0.45s | 0.8%) | West Coast Aquatics | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | ||
| 1487 | Leif Osborne | 53.84 | 9 | B: 53.39 (+0.45s | 0.8%) | Bay Club Aquatics | 12/05/2025 | SI 2025 RSD All Ages WAG Max | ||
| 1488 | Everett Kaiser | 53.84 | 8 | B: 53.39 (+0.45s | 0.8%) | Palo Alto Stanford Aquatics | 10/25/2025 | TYR BAC SPOOKY FALL CLASSIC | ||
| 1489 | Cooper Conrad | 53.85 | 10 | B: 53.39 (+0.46s | 0.9%) | Livermore AquaCowboys | 09/27/2025 | PC LAC C B BB | ||
| 1490 | Kyle Thompson | 53.86 | 8 | B: 53.39 (+0.47s | 0.9%) | Unattached | 09/30/2023 | BSW C B BB+ Sep 30 Oct 1, 2023 | ||
| 1491 | William Zhao | 53.86 | 9 | B: 53.39 (+0.47s | 0.9%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | ||
| 1492 | Dean Wu | 53.86 | 7 | B: 53.39 (+0.47s | 0.9%) | Burlingame Aquatics | 01/10/2026 | BAC Norman Cutler Memorial | ||
| 1493 | Gabriel Martinez | 53.87 | 9 | B: 53.39 (+0.48s | 0.9%) | Aces Swim Club | 01/23/2026 | 2026 CO TOPS Colorado Open | ||
| 1494 | Filip Sapazhkou | 53.88 | 8 | B: 53.39 (+0.49s | 0.9%) | Swim Lake City Legends | 12/29/2025 | 60th Holiday Open 2025 C Meet | ||
| 1495 | Holden Benke | 53.89 | 9 | B: 53.39 (+0.50s | 0.9%) | Mission Valley YMCA | 01/31/2026 | 2026 SBA All Ages NTS Meet | ||
| 1496 | Colton McKinnon | 53.90 | 9 | B: 53.39 (+0.51s | 0.9%) | Excel Aquatics | 01/18/2026 | 2026 PN BC Snowflake Classic Invite Approved | ||
| 1497 | Spencer Beaman | 53.90 | 9 | B: 53.39 (+0.51s | 0.9%) | Olympus Aquatics | 12/29/2025 | 60th Holiday Open 2025 C Meet | ||
| 1498 | William Chu | 53.91 | 9 | B: 53.39 (+0.52s | 1.0%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | ||
| 1499 | Aru Gopinath | 53.91 | 8 | B: 53.39 (+0.52s | 1.0%) | Unattached | 11/08/2025 | TCA PC November SC C B A+ | ||
| 1500 | Sebastian Guzman | 53.91 | 9 | B: 53.39 (+0.52s | 1.0%) | Bure-Aqua Academy | 02/15/2025 | 2025 CO Aces Winter Open | ||
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.