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 | |
|---|---|---|---|---|---|---|---|---|---|
| 151 | Leland Tsou | 42.53 | 10 | BB Min | A: 42.09 (+0.44s | 1.0%) | Paseo Aquatics Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 152 | Bryan HU | 42.54 | 10 | BB Min | A: 42.09 (+0.45s | 1.1%) | Aquazot Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 153 | Ari Mobasseri | 42.57 | 8 | BB Min | A: 42.09 (+0.48s | 1.1%) | Aquazot Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 154 | James Milchteim | 42.58 | 9 | BB Min | A: 42.09 (+0.49s | 1.2%) | Bay Club Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 155 | Basil Erickson | 42.58 | 10 | BB Min | A: 42.09 (+0.49s | 1.2%) | Excel Aquatics | 10/17/2026 | 2026 PN MMSC Fall Invite Approved | |
| 156 | Elliott Lindley | 42.59 | 10 | BB Min | A: 42.09 (+0.50s | 1.2%) | Los Altos Mountain View Aquati | 07/01/2026 | MAC July 1st Block Party | |
| 157 | Carson Yin | 42.60 | 10 | BB Min | A: 42.09 (+0.51s | 1.2%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 158 | Atharv Choubey | 42.62 | 9 | BB Min | A: 42.09 (+0.53s | 1.2%) | Olympic Cascade Aquatics | 10/16/2026 | 2026 PN VAST Fall Classic Invite Approved | |
| 159 | Young Sun | 42.62 | 9 | BB Min | A: 42.09 (+0.53s | 1.2%) | Bellevue Club Swim Team | 10/03/2026 | 2026 PN CSC Fall Classic Invitational Approve | |
| 160 | Chayton Zhou | 42.64 | 9 | BB Min | A: 42.09 (+0.55s | 1.3%) | Pleasanton Seahawks | 10/10/2026 | SRVA SC C B BB+ Meet | |
| 161 | Kaimana Hashimoto | 42.66 | 10 | BB Min | A: 42.09 (+0.57s | 1.3%) | Splash Aquatics | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 162 | Luke Wang | 42.71 | 10 | BB Min | A: 42.09 (+0.62s | 1.5%) | Sierra Marlins Swim Team | 09/26/2026 | 2026 CCA Spook Tacular | |
| 163 | Henry Goddard | 42.75 | 10 | BB Min | A: 42.09 (+0.66s | 1.5%) | Cascadia Swimming | 08/01/2025 | Big Kahuna 2025 | |
| 164 | Ishaan Malik | 42.76 | 10 | BB Min | A: 42.09 (+0.67s | 1.6%) | California Dolphins Swim Team | 10/10/2026 | Orinda Aquatics PC SC C B BB+ | |
| 165 | Elias Lien | 42.79 | 8 | BB Min | A: 42.09 (+0.70s | 1.6%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 166 | Emilio Balcazar | 42.80 | 10 | BB Min | A: 42.09 (+0.71s | 1.7%) | Centro Acuatico Universitario | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 167 | Zuriel Cariazo | 42.83 | 10 | BB Min | A: 42.09 (+0.74s | 1.7%) | Montrose Marlins Swim Club | 05/16/2026 | 2026 CO Sopris FAST Challenge | |
| 168 | Mason Nguyen | 42.84 | 10 | BB Min | A: 42.09 (+0.75s | 1.8%) | Aquazot Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 169 | Owen Bronson | 42.86 | 10 | BB Min | A: 42.09 (+0.77s | 1.8%) | Legacy Aquatics | 10/10/2026 | LA Fall Kick Off 2026 | |
| 170 | Axel Radstrom | 42.87 | 10 | BB Min | A: 42.09 (+0.78s | 1.8%) | Unattached | 10/09/2026 | VJO S Sprint For The Golden Ticket 2026 C | |
| 171 | Charles Tan | 42.87 | 10 | BB Min | A: 42.09 (+0.78s | 1.8%) | Bellevue Club Swim Team | 10/03/2026 | 2026 PN CSC Fall Classic Invitational Approve | |
| 172 | Yupeng Wang | 42.89 | 10 | BB Min | A: 42.09 (+0.80s | 1.9%) | Monterey Park Manta Rays | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 173 | Hunter Wilson | 42.90 | 10 | BB Min | A: 42.09 (+0.81s | 1.9%) | Kamehameha Swim Club | 09/05/2026 | OSL A+ Sprint Pentathlon Copied | |
| 174 | Aiden Mulcahy | 42.91 | 10 | BB Min | A: 42.09 (+0.82s | 1.9%) | Aulea Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 175 | Graham Terzer | 42.92 | 10 | BB Min | A: 42.09 (+0.83s | 1.9%) | The Spartans of La Canada | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 176 | Nikoloz Zhorzholiani | 42.97 | 10 | BB Min | A: 42.09 (+0.88s | 2.0%) | Seattle Metropolitan Aquatic C | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 177 | Jun Lin | 42.98 | 8 | BB Min | A: 42.09 (+0.89s | 2.1%) | Seattle Metropolitan Aquatic C | 10/10/2026 | 2026 PN SMAC Fall Kick Off Approved | |
| 178 | Ahaan Maknojia | 43.02 | 10 | BB Min | A: 42.09 (+0.93s | 2.2%) | Issaquah Swim Team | 09/26/2026 | 2026 PN IST Sockeye Sprints Approved | |
| 179 | Preston Tran | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | Irvine Novaquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 180 | Logan Yip | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | South San Francisco Aquatics | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 181 | Kotia Zvereff | 43.04 | 8 | BB Min | A: 42.09 (+0.95s | 2.2%) | Unattached | 09/13/2026 | Hot Dog Meet, Sept 2026 | |
| 182 | Matias Monzalvo | 43.05 | 10 | BB Min | A: 42.09 (+0.96s | 2.2%) | South Bay Aquatics | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 183 | John Timmons | 43.06 | 10 | BB Min | A: 42.09 (+0.97s | 2.3%) | Life Time Northern California | 09/26/2026 | 2026 CCA Spook Tacular | |
| 184 | Enzo Lin | 43.09 | 10 | BB Min | A: 42.09 (+1.00s | 2.3%) | Splash Aquatics | 09/05/2026 | OSL A+ Sprint Pentathlon Copied | |
| 185 | Brian Chou | 43.13 | 9 | BB Min | A: 42.09 (+1.04s | 2.4%) | Irvine Novaquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 186 | Robert Mello | 43.13 | 10 | BB Min | A: 42.09 (+1.04s | 2.4%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 187 | Paxton Marvray | 43.15 | 10 | BB Min | A: 42.09 (+1.06s | 2.5%) | Sawtooth Aquatic Club | 12/20/2025 | 2025 BY Candy Cane Invitational | |
| 188 | Luca Desset | 43.17 | 10 | BB Min | A: 42.09 (+1.08s | 2.5%) | Unattached | 08/29/2026 | 2026 BIG ISLAND SWIMMING PENTATHLON | |
| 189 | Lichen Chi | 43.21 | 9 | BB Min | A: 42.09 (+1.12s | 2.6%) | Tualatin Hills Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 190 | Miles VanderLinden | 43.25 | 10 | BB Min | A: 42.09 (+1.16s | 2.7%) | Truckee-Tahoe Swim Team | 10/16/2026 | 2026 KING OF THE HILL CHALLENGE | |
| 191 | Noah Gonzales | 43.26 | 10 | BB Min | A: 42.09 (+1.17s | 2.7%) | South San Francisco Aquatics | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 192 | Ariovistus Pardee | 43.27 | 10 | BB Min | A: 42.09 (+1.18s | 2.7%) | Maui Swim Club | 09/19/2026 | 2026 MAGSA SCY A 1 | |
| 193 | Henry Moore | 43.29 | 10 | BB Min | A: 42.09 (+1.20s | 2.8%) | Ladera Oaks | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 194 | Luke Xu | 43.29 | 8 | BB Min | A: 42.09 (+1.20s | 2.8%) | Seattle Metropolitan Aquatic C | 10/16/2026 | 2026 PN VAST Fall Classic Invite Approved | |
| 195 | Owen Nguyen | 43.37 | 10 | BB Min | A: 42.09 (+1.28s | 3.0%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 196 | Brendan Ma | 43.37 | 9 | BB Min | A: 42.09 (+1.28s | 3.0%) | Orinda Aquatics | 07/25/2026 | Zone 2 Summer Championships | |
| 197 | Aaron Kim | 43.40 | 10 | BB Min | A: 42.09 (+1.31s | 3.0%) | The Spartans of La Canada | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 198 | Cyrus Yang | 43.40 | 10 | BB Min | A: 42.09 (+1.31s | 3.0%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 199 | Ishaan Mittal | 43.40 | 10 | BB Min | A: 42.09 (+1.31s | 3.0%) | Rogue Rapids | 10/09/2026 | 2026 Rogue Rapids Sofia Marks Invitational | |
| 200 | Robert Kolesnik | 43.41 | 10 | BB Min | A: 42.09 (+1.32s | 3.0%) | Bulldog Swim Club | 10/24/2026 | SUNN Fall Classic 2026 | |
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.