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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1201 | Zihan Zhao | 51.77 | 9 | B Min | BB: 47.69 (+4.08s | 7.9%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 1202 | Joshua Peterson | 51.78 | 10 | B Min | BB: 47.69 (+4.09s | 7.9%) | Excel Aquatics | 10/18/2025 | 2025 PN IST Fall Open | |
| 1203 | Kingston Walls | 51.78 | 7 | B Min | BB: 47.69 (+4.09s | 7.9%) | Terrapins Swim Team | 11/15/2024 | Pacific Swimming SCY B BB+ Last Chance Meet | |
| 1204 | Ezra Junio | 51.78 | 10 | B Min | BB: 47.69 (+4.09s | 7.9%) | Legacy Aquatics | 01/02/2026 | 2026 CST Shark Chase Invitational | |
| 1205 | William Lawrence | 51.78 | 8 | B Min | BB: 47.69 (+4.09s | 7.9%) | Pro Swimming | 01/23/2026 | 2026 PN Pro January Intrasquad Approved | |
| 1206 | Lucas Fleck | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | AC Swim Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 1207 | Landon Cardoso | 51.81 | 10 | B Min | BB: 47.69 (+4.12s | 8.0%) | Montrose Marlins Swim Club | 06/28/2025 | 2025 CO Montrose Marlins Summer Open | |
| 1208 | Ayaan Shaik | 51.83 | 10 | B Min | BB: 47.69 (+4.14s | 8.0%) | Apex | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 1209 | Jack Wilson | 51.84 | 9 | B Min | BB: 47.69 (+4.15s | 8.0%) | Aspire Aquatics of Colorado | 03/07/2025 | 2025 CO CSI Silver State Championships | |
| 1210 | Alexander Stepania | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Bellevue Club Swim Team | 11/07/2025 | 2025 THSC November Open | |
| 1211 | Sutton Howard | 51.86 | 10 | B Min | BB: 47.69 (+4.17s | 8.0%) | Excel Aquatics | 12/13/2025 | 2025 Ho Ho Ho Holiday 12 Under Meet | |
| 1212 | Kolten Graver | 51.86 | 10 | B Min | BB: 47.69 (+4.17s | 8.0%) | Life Time Colorado Swim Club | 01/16/2026 | 2026 CO CUDA Classic | |
| 1213 | Timothy Wang | 51.88 | 10 | B Min | BB: 47.69 (+4.19s | 8.1%) | Cascadia Swimming | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 1214 | Michael Sandmann | 51.88 | 9 | B Min | BB: 47.69 (+4.19s | 8.1%) | McMinnville Swim Club | 10/17/2025 | 2025 CST Harvest Open | |
| 1215 | Lucas Yang | 51.89 | 10 | B Min | BB: 47.69 (+4.20s | 8.1%) | Bay Club Santa Clara Dolphins | 09/27/2025 | 2025 MAC Season Kick Off | |
| 1216 | Vedant Tomar | 51.90 | 9 | B Min | BB: 47.69 (+4.21s | 8.1%) | California Dolphins Swim Team | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 1217 | Bodie Hendrickson | 51.91 | 9 | B Min | BB: 47.69 (+4.22s | 8.1%) | Hilltop Aquatic Swim Team | 09/17/2025 | 2025 UT HAST Sprint Meet | |
| 1218 | Buchanan Sanchez | 51.91 | 10 | B Min | BB: 47.69 (+4.22s | 8.1%) | Bainbridge Island Swim Club | 09/13/2025 | 2025 PN BISC Blue Gold Intrasquad | |
| 1219 | Roland Suida | 51.92 | 8 | B Min | BB: 47.69 (+4.23s | 8.1%) | Rogue Rapids | 11/21/2025 | 2025 Rogue Rapids Sofia Marks Invitational | |
| 1220 | Wesley Ho | 51.93 | 9 | B Min | BB: 47.69 (+4.24s | 8.2%) | Aspire Aquatics of Colorado | 01/10/2025 | 2025 CO PPA January Meet | |
| 1221 | Benson Amspacher | 51.94 | 9 | B Min | BB: 47.69 (+4.25s | 8.2%) | King Aquatic Club | 01/31/2026 | 2026 PN KING Beast IMX IMR Invitational Appr | |
| 1222 | Andrew DiPaulo | 51.94 | 9 | B Min | BB: 47.69 (+4.25s | 8.2%) | Univ. of Denver Hilltoppers | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 1223 | Holden Richards | 51.95 | 9 | B Min | BB: 47.69 (+4.26s | 8.2%) | AC Swim Club | 11/08/2025 | TCA PC November SC C B A+ | |
| 1224 | Wesley Albright | 51.96 | 8 | B Min | BB: 47.69 (+4.27s | 8.2%) | Reno Aquatic Club | 03/15/2025 | 2025 NNA Age Group Open | |
| 1225 | Marko Tamburi | 51.96 | 9 | B Min | BB: 47.69 (+4.27s | 8.2%) | Star Aquatics | 12/12/2025 | Triad Tropic Invitational Copied | |
| 1226 | Alex Fang | 51.97 | 10 | B Min | BB: 47.69 (+4.28s | 8.2%) | Lake Oswego Swim Club | 01/28/2026 | 2026 January LOSC Intrasquad | |
| 1227 | Andreas Kwiram | 51.98 | 8 | B Min | BB: 47.69 (+4.29s | 8.3%) | Hills Hurricane Swimming | 01/11/2025 | Crow Canyon Sharks Shortcourse C B BB+ | |
| 1228 | Hyrum Oswald | 51.99 | 8 | B Min | BB: 47.69 (+4.30s | 8.3%) | Unattached | 07/02/2025 | 2025 14 Under Intrasquad | |
| 1229 | Barrett Buffington | 51.99 | 10 | B Min | BB: 47.69 (+4.30s | 8.3%) | Northern Nevada Aquatics | 09/12/2025 | Molly Lahlum Memorial Autumn Freeze | |
| 1230 | Luke Wieser | 51.99 | 10 | B Min | BB: 47.69 (+4.30s | 8.3%) | Lakeridge Swim Team | 01/16/2026 | 2026 Blizzard Blast Swim Meet | |
| 1231 | Marcus Wang | 52.00 | 10 | B Min | BB: 47.69 (+4.31s | 8.3%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 1232 | Keith Barker | 52.01 | 10 | B Min | BB: 47.69 (+4.32s | 8.3%) | Aulea Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 1233 | Chase Clark | 52.03 | 9 | B Min | BB: 47.69 (+4.34s | 8.3%) | Issaquah Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | |
| 1234 | Adrian Pascu | 52.04 | 8 | B Min | BB: 47.69 (+4.35s | 8.4%) | Gold\\\\\\'s Aquatics Club (Camas) | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 1235 | Jayden Yates | 52.04 | 8 | B Min | BB: 47.69 (+4.35s | 8.4%) | Kearns Youth Aquatic Team | 02/10/2024 | 2024 Freezing Fast Last Chance | |
| 1236 | Michael Sohn | 52.05 | 10 | B Min | BB: 47.69 (+4.36s | 8.4%) | Front Range Barracudas | 01/16/2026 | 2026 CO CUDA Classic | |
| 1237 | Vaughn Jacob | 52.05 | 9 | B Min | BB: 47.69 (+4.36s | 8.4%) | Mount Hood Aquatics | 02/01/2025 | 2025 OR HEAT B C Blastoff | |
| 1238 | Corey Tang | 52.07 | 9 | B Min | BB: 47.69 (+4.38s | 8.4%) | Unattached | 10/05/2024 | VJO Sprint For The Golden Ticket CBA+ 2024 | |
| 1239 | Yusuf Cavcic | 52.07 | 9 | B Min | BB: 47.69 (+4.38s | 8.4%) | Wave Aquatics | 11/22/2025 | 2025 PN Nov AGI, Division 2 (SMAC) | |
| 1240 | Kai Miller | 52.09 | 8 | B Min | BB: 47.69 (+4.40s | 8.4%) | Boulder City Henderson Swim Te | 11/08/2024 | 2024 NV State Championships | |
| 1241 | Owen Mast | 52.09 | 9 | B Min | BB: 47.69 (+4.40s | 8.4%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 1242 | Lev Gishizky | 52.09 | 10 | B Min | BB: 47.69 (+4.40s | 8.4%) | Waves Aquatics Napa Valley | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 1243 | Nash Meredith | 52.10 | 10 | B Min | BB: 47.69 (+4.41s | 8.5%) | Pacifica Sea Lions | 02/07/2026 | 2026 PSL Super Finals Invitational | |
| 1244 | Wesley Clemens | 52.10 | 9 | B Min | BB: 47.69 (+4.41s | 8.5%) | Bay Club Aquatics | 12/05/2025 | SI 2025 RSD All Ages WAG Max | |
| 1245 | Moxon Fain | 52.10 | 9 | B Min | BB: 47.69 (+4.41s | 8.5%) | Seattle Metropolitan Aquatic C | 10/18/2025 | 2025 PN VAST Fall Classic | |
| 1246 | Bennett Haselfeld | 52.11 | 9 | B Min | BB: 47.69 (+4.42s | 8.5%) | Issaquah Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | |
| 1247 | Eli Shin | 52.12 | 8 | B Min | BB: 47.69 (+4.43s | 8.5%) | Stingray Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 1248 | Easton Fairbank | 52.12 | 7 | B Min | BB: 47.69 (+4.43s | 8.5%) | Flatiron Athletic Club | 01/16/2026 | 2026 CO CUDA Classic | |
| 1249 | Bo Cunningham | 52.13 | 9 | B Min | BB: 47.69 (+4.44s | 8.5%) | North Jeffco Swim Team | 03/07/2025 | 2025 CO CSI Silver State Championships | |
| 1250 | Chior Prange | 52.14 | 10 | B Min | BB: 47.69 (+4.45s | 8.5%) | Bishop Swim Team | 06/14/2025 | Bishop Invitational 2025 | |
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.