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 | |
|---|---|---|---|---|---|---|---|---|---|
| 201 | Jonathan Nelson | 42.52 | 9 | BB Min | A: 42.09 (+0.43s | 1.0%) | Utah Valley Aquatics | 12/26/2024 | 59th Kearns Holiday Open Invitational | |
| 202 | Aleksandr Rybin | 42.56 | 10 | BB Min | A: 42.09 (+0.47s | 1.1%) | King Aquatic Club | 11/22/2025 | 2025 PN November AGI Div 1 (PDST) | |
| 203 | Everett Muzzarelli | 42.57 | 7 | BB Min | A: 42.09 (+0.48s | 1.1%) | Woodbridge Swim Team | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 204 | Jensen Huang | 42.59 | 10 | BB Min | A: 42.09 (+0.50s | 1.2%) | Arcadia Riptides Swim Club | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 205 | Owen Tan | 42.59 | 9 | BB Min | A: 42.09 (+0.50s | 1.2%) | Hawaii Swimming Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 206 | Jake McNair | 42.60 | 8 | BB Min | A: 42.09 (+0.51s | 1.2%) | Bellevue Club Swim Team | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 207 | Matthew Zhu | 42.61 | 10 | BB Min | A: 42.09 (+0.52s | 1.2%) | Rose Bowl Aquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 208 | Phinnaeus Johnson | 42.62 | 10 | BB Min | A: 42.09 (+0.53s | 1.2%) | Gilroy Gators Swim Team | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 209 | Mason Kim | 42.63 | 10 | BB Min | A: 42.09 (+0.54s | 1.3%) | Maywood Sparks Swim Team | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 210 | Matthew Ko | 42.64 | 10 | BB Min | A: 42.09 (+0.55s | 1.3%) | Aspire Aquatics of Colorado | 01/04/2026 | 2026 CO AAC Sprint Eliminator Invite | |
| 211 | Lucas Pan | 42.66 | 8 | BB Min | A: 42.09 (+0.57s | 1.3%) | Santa Clara Swim Club | 11/08/2025 | Folsom Classic 2025 | |
| 212 | Arian Gavriljuk | 42.67 | 10 | BB Min | A: 42.09 (+0.58s | 1.4%) | Pro Swimming | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 213 | Reagan Wilsey | 42.70 | 10 | BB Min | A: 42.09 (+0.61s | 1.4%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 214 | Yuning Huang | 42.70 | 9 | BB Min | A: 42.09 (+0.61s | 1.4%) | Rose Bowl Aquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 215 | Adrian Tu | 42.71 | 10 | BB Min | A: 42.09 (+0.62s | 1.5%) | Walnut Creek Aquabears | 12/12/2025 | Winter SC Age Group Championships | |
| 216 | Orion Blue-Smith | 42.71 | 9 | BB Min | A: 42.09 (+0.62s | 1.5%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | |
| 217 | Oliver Shalvey | 42.72 | 10 | BB Min | A: 42.09 (+0.63s | 1.5%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 218 | Konnor Pham-Nguyen | 42.73 | 10 | BB Min | A: 42.09 (+0.64s | 1.5%) | Alameda Gators | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 219 | Jackson Staples | 42.75 | 10 | BB Min | A: 42.09 (+0.66s | 1.5%) | Las Cruces Aquatic Team | 02/13/2026 | 2026 BD Arctic BLAST Swim Meet | |
| 220 | Henry Goddard | 42.75 | 9 | BB Min | A: 42.09 (+0.66s | 1.5%) | Cascadia Swimming | 08/01/2025 | Big Kahuna 2025 | |
| 221 | Emilio Balcazar | 42.80 | 9 | BB Min | A: 42.09 (+0.71s | 1.7%) | Centro Acuatico Universitario | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 222 | Max Ong | 42.80 | 10 | BB Min | A: 42.09 (+0.71s | 1.7%) | Pacific Swim | 11/08/2025 | HSA All Ages NTS | |
| 223 | Liam Reyes | 42.82 | 9 | BB Min | A: 42.09 (+0.73s | 1.7%) | Reno Aquatic Club | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 224 | Ishaan Karunanayake | 42.85 | 9 | BB Min | A: 42.09 (+0.76s | 1.8%) | Alto Swim Club | 11/09/2024 | Alto Go The Distance | |
| 225 | Anderson Bradley | 42.86 | 9 | BB Min | A: 42.09 (+0.77s | 1.8%) | Coastal Machine Aquatics Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 226 | Charles Kramer | 42.87 | 10 | BB Min | A: 42.09 (+0.78s | 1.8%) | Los Angeles Swim Club | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 227 | Joshua Vitale | 42.87 | 10 | BB Min | A: 42.09 (+0.78s | 1.8%) | Lake Oswego Swim Club | 12/12/2025 | 2025 OR HEAT Age Group Jubilee | |
| 228 | Landon Gura | 42.88 | 9 | BB Min | A: 42.09 (+0.79s | 1.8%) | North Coast Aquatics | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 229 | Aaron Kuusela | 42.88 | 10 | BB Min | A: 42.09 (+0.79s | 1.8%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 230 | David Zhang | 42.90 | 10 | BB Min | A: 42.09 (+0.81s | 1.9%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 231 | Hugo Linowski | 42.92 | 10 | BB Min | A: 42.09 (+0.83s | 1.9%) | Olympic Cascade Aquatics | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 232 | Graham Terzer | 42.92 | 9 | BB Min | A: 42.09 (+0.83s | 1.9%) | The Spartans of La Canada | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 233 | Jaezyn Magnaye | 42.94 | 10 | BB Min | A: 42.09 (+0.85s | 2.0%) | Tualatin Hills Swim Club | 01/16/2026 | 2026 THSC 14 U Winter Showcase | |
| 234 | Julian Phillips | 42.95 | 10 | BB Min | A: 42.09 (+0.86s | 2.0%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 235 | Stewart Bye | 42.96 | 10 | BB Min | A: 42.09 (+0.87s | 2.0%) | Corvallis Aquatic Team | 12/12/2025 | 2025 OR HEAT Age Group Jubilee | |
| 236 | Oliver Pearce | 42.96 | 9 | BB Min | A: 42.09 (+0.87s | 2.0%) | Aces Swim Club | 01/09/2026 | 2026 CO NJ Narwhal Invitational | |
| 237 | Kaimana Hashimoto | 43.01 | 9 | BB Min | A: 42.09 (+0.92s | 2.1%) | Splash Aquatics | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 238 | Ashton Chen | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | Brea Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 239 | Charlie Seipel | 43.04 | 10 | BB Min | A: 42.09 (+0.95s | 2.2%) | Terrapins Swim Team | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 240 | Shawn Cohen | 43.07 | 10 | BB Min | A: 42.09 (+0.98s | 2.3%) | Jbarracudas Swim Team | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 241 | Bryan HU | 43.10 | 9 | BB Min | A: 42.09 (+1.01s | 2.3%) | Aquazot Swim Club | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 242 | Adi Bisht | 43.10 | 10 | BB Min | A: 42.09 (+1.01s | 2.3%) | Valley Splash | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 243 | Yangyang Xu | 43.11 | 10 | BB Min | A: 42.09 (+1.02s | 2.4%) | Pacific Dragons Swim Team | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 244 | Steven Wang | 43.11 | 10 | BB Min | A: 42.09 (+1.02s | 2.4%) | Wave Aquatics | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 245 | Alex Deng | 43.12 | 9 | BB Min | A: 42.09 (+1.03s | 2.4%) | Issaquah Swim Team | 12/07/2024 | 2024 PN Fall Divisionals, Division 1 | |
| 246 | Robert Mello | 43.13 | 9 | BB Min | A: 42.09 (+1.04s | 2.4%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 247 | Brian Chou | 43.13 | 8 | BB Min | A: 42.09 (+1.04s | 2.4%) | Irvine Novaquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 248 | 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 | |
| 249 | Maochen Tan | 43.17 | 10 | BB Min | A: 42.09 (+1.08s | 2.5%) | Mission Viejo Nadadores | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 250 | Bennett Arguello | 43.17 | 9 | BB Min | A: 42.09 (+1.08s | 2.5%) | Greenwood Tiger Sharks | 12/12/2025 | 2025 CO NJ Blizzard Invite | |
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.