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Western Zone Zone Boys 10 & under - 50 Y 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
1301 Aiden Kiatrungrit 45.90 10 B Min BB: 42.89 (+3.01s | 6.6%) South San Francisco Aquatics 11/14/2025 PSL Pumpkin Spice Lovers 25 129
1302 Sebastian Alfonso 45.91 10 B Min BB: 42.89 (+3.02s | 6.6%) Walnut Creek Aquabears 03/28/2026 Piedmont Swim Team C B BB+
1303 William MacDonald 45.91 10 B Min BB: 42.89 (+3.02s | 6.6%) Wave Aquatics 03/28/2026 2026 PN Spring Showdown, Div 4 Approved
1304 Owen Lee 45.91 9 B Min BB: 42.89 (+3.02s | 6.6%) Chinook Aquatic Club 02/07/2026 2026 PN IST Feb Winter Invitational Approved
1305 Samuel Zhou 45.92 9 B Min BB: 42.89 (+3.03s | 6.6%) Bay Club Panthers 02/07/2026 PASA CBA+ SCY Meet Feb 2026
1306 Zachariah Sivaraj 45.93 8 B Min BB: 42.89 (+3.04s | 6.6%) Sawtooth Aquatic Club 12/04/2025 2025 Holiday Swim Festival
1307 Bruce Chou 45.94 10 B Min BB: 42.89 (+3.05s | 6.6%) Jbarracudas Swim Team 11/08/2025 2025 SI SDSA All Ages NTS Meet
1308 Fedor Akimov 45.95 10 B Min BB: 42.89 (+3.06s | 6.7%) YMCA Presidio Aquatics 01/17/2026 PC PRNA Final Splash To The Championship CBA+
1309 Edmund Lin 45.95 9 B Min BB: 42.89 (+3.06s | 6.7%) California Dolphins Swim Team 01/31/2026 Zone 2 Winter Championship Meet
1310 Stanislaw Gruszka 46.00 10 B Min BB: 42.89 (+3.11s | 6.8%) Walnut Creek Aquabears 07/26/2025 Zone 2 Summer Championships
1311 Grant Center 46.00 10 B Min BB: 42.89 (+3.11s | 6.8%) Manta Ray Aquatics 09/20/2025 2025 IE MRA Sprint Shootout
25 Back
22.84
22.84
50 Back
23.16
46.00
50 Back
46.00
1312 Quincy Oshitelu 46.00 8 B Min BB: 42.89 (+3.11s | 6.8%) Hillsboro Swim Team 02/21/2026 2026 Arena Short Course 10 U Championships
1313 Anthony Piazza 46.01 9 B Min BB: 42.89 (+3.12s | 6.8%) Otter Swim Club 03/28/2026 LAMV C B A+ Meet
1314 Owen Hayes 46.01 10 B Min BB: 42.89 (+3.12s | 6.8%) Hills Hurricane Swimming 10/18/2025 PC SRVA SCY B BB+ Meet
1315 Luke Voeller 46.02 9 B Min BB: 42.89 (+3.13s | 6.8%) Apex 01/02/2026 2026 CST Shark Chase Invitational
1316 Nixon Lo 46.03 8 B Min BB: 42.89 (+3.14s | 6.8%) Santa Clara Swim Club 03/28/2026 Swim South Bay
1317 Jeremiah Busenitz 46.04 8 B Min BB: 42.89 (+3.15s | 6.8%) Central Coast Swim Club 02/21/2026 2026 Arena Short Course 10 U Championships
1318 Gregory Lee 46.08 10 B Min BB: 42.89 (+3.19s | 6.9%) Palo Alto Stanford Aquatics 11/15/2025 De Anza Cupertino Aquatics CBA+ Meet
1319 Zachary DeLozier 46.08 9 B Min BB: 42.89 (+3.19s | 6.9%) Lake Oswego Swim Club 10/18/2025 2025 LOSC October Intrasquad
1320 Max Hartley 46.09 10 B Min BB: 42.89 (+3.20s | 6.9%) Stayton Manta Rays Inc 01/03/2026 2026 CAT Short Course Open
1321 Liam Gilligan 46.09 10 B Min BB: 42.89 (+3.20s | 6.9%) Sun Valley 5 B 11/22/2025 57th Annual Thanksgiving Invitational
1322 Kwame Cobbinah 46.09 10 B Min BB: 42.89 (+3.20s | 6.9%) Apex 01/02/2026 2026 CST Shark Chase Invitational
1323 Grayson Julien 46.10 10 B Min BB: 42.89 (+3.21s | 7.0%) South Valley Makos 11/14/2025 2025 Santa Clara Swim Club SC CBA Meet
1324 Miles Montagnino 46.10 8 B Min BB: 42.89 (+3.21s | 7.0%) Aquabear Swim Club 02/13/2026 34th Annual Lost Dutchman Invitational
1325 Behrett Ballance 46.11 10 B Min BB: 42.89 (+3.22s | 7.0%) Bend Swim Club 11/21/2025 2025 Rogue Rapids Sofia Marks Invitational
1326 Lucas Wu 46.12 10 B Min BB: 42.89 (+3.23s | 7.0%) Coronado Swim -team Elite 02/21/2026 2026 SI MRA Age Group Champs Max Meet
1327 Noah Hunter 46.12 9 B Min BB: 42.89 (+3.23s | 7.0%) Quicksilver Swimming 12/05/2025 Zone 1S Year End Age Group Champs Minus Meet
1328 Jacob Nong 46.13 10 B Min BB: 42.89 (+3.24s | 7.0%) Manta Ray Aquatics 12/13/2025 2025 SI CAST 14U Rising Stars 2
1329 Kaiji Homma 46.13 10 B Min BB: 42.89 (+3.24s | 7.0%) Chinook Aquatic Club 03/07/2026 2026 PN C March Madness Approved
1330 Andrew Yang 46.14 9 B Min BB: 42.89 (+3.25s | 7.0%) Pacific Dragons Swim Team 02/07/2026 2026 PN IST Feb Winter Invitational Approved
1331 ZeKai Zhu 46.14 10 B Min BB: 42.89 (+3.25s | 7.0%) Rio Salado Swim Club 02/13/2026 34th Annual Lost Dutchman Invitational
1332 Talan Zimmerman 46.15 10 B Min BB: 42.89 (+3.26s | 7.1%) Kona Dolphins Swim Club 02/07/2026 BIG ISLAND SWIMMING @ KCAC
1333 Abhyudh Hingarh 46.15 10 B Min BB: 42.89 (+3.26s | 7.1%) Canyons Aquatic Club 10/25/2025 CANY Harry Potter Meet
1334 Oliver Skoubo 46.15 10 B Min BB: 42.89 (+3.26s | 7.1%) River Road Swim Team 11/15/2025 2025 CGAL FALL Open Copied
1335 Giovanni Bigelow 46.16 10 B Min BB: 42.89 (+3.27s | 7.1%) Thunderbird Aquatic Club 03/28/2026 2026 PN Spring Showdown, Div 3 Approved
1336 Jasper Yan 46.16 7 B Min BB: 42.89 (+3.27s | 7.1%) California Dolphins Swim Team 10/18/2025 PC CDST SC C B BB+
1337 Christopher Scheetz 46.17 9 B Min BB: 42.89 (+3.28s | 7.1%) COSA Swimming 02/13/2026 2026 CO Valentine Open
1338 Alec Henriques 46.17 10 B Min BB: 42.89 (+3.28s | 7.1%) Napa Valley Swim Team 11/15/2025 NVST Swimming Into Fall 2025
1339 Bennett Dulik 46.18 10 B Min BB: 42.89 (+3.29s | 7.1%) Aces Swim Club 02/15/2025 2025 CO Aces Winter Open
1340 Nathaniel Min 46.18 9 B Min BB: 42.89 (+3.29s | 7.1%) California Dolphins Swim Team 11/14/2025 2025 Santa Clara Swim Club SC CBA Meet
1341 Ethan Gao 46.18 9 B Min BB: 42.89 (+3.29s | 7.1%) California Dolphins Swim Team 03/22/2025 2025 3 22 CDST SC C B BB+ Meet
1342 Valentino Agresti 46.18 9 B Min BB: 42.89 (+3.29s | 7.1%) Punahou Aquatics Institute 03/28/2026 Alto Rock The Blocks Invitational 2026
1343 Hudson Avery 46.19 9 B Min BB: 42.89 (+3.30s | 7.1%) Seattle Metropolitan Aquatic C 01/17/2026 2026 PN SMAC Winter Invitational Approved
1344 Hayk Asatryan 46.19 10 B Min BB: 42.89 (+3.30s | 7.1%) Milpitas Aquatic Club 09/27/2025 2025 MAC Season Kick Off
1345 James Kowen 46.19 9 B Min BB: 42.89 (+3.30s | 7.1%) Punahou Aquatics Institute 10/25/2025 2025 HI 25th Annual Bill Smith Invitational
1346 Daniel Popescu 46.19 7 B Min BB: 42.89 (+3.30s | 7.1%) Seattle Metropolitan Aquatic C 03/28/2026 2026 PN Spring Showdown, Div 2 Approved
1347 Sam Ventura 46.20 8 B Min BB: 42.89 (+3.31s | 7.2%) Wave Aquatics 03/28/2026 2026 PN Spring Showdown, Div 4 Approved
1348 Samuel Tarbell 46.20 10 B Min BB: 42.89 (+3.31s | 7.2%) CAC Stingrays Swim Team 01/02/2026 2026 CO COSA New Year Open
1349 Cimon Bunuan 46.21 9 B Min BB: 42.89 (+3.32s | 7.2%) South San Francisco Aquatics 01/10/2026 SSF NEW YEAR SPLASH C B A+
1350 Youssef Aba 46.22 8 B Min BB: 42.89 (+3.33s | 7.2%) Front Range Barracudas 01/09/2026 2026 CO CUDA January Pizza Meet

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.