Western Zone Zone Boys 10 & under - 50 M 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 | Caleb Pan | 47.39 | 10 | A Min | AA: 45.79 (+1.60s | 3.4%) | West Coast Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 152 | Kallen Joyce | 47.41 | 9 | A Min | AA: 45.79 (+1.62s | 3.4%) | Kamehameha Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 153 | Calvin Larkin | 47.42 | 9 | A Min | AA: 45.79 (+1.63s | 3.4%) | Bend Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 154 | Jaezyn Magnaye | 47.44 | 10 | A Min | AA: 45.79 (+1.65s | 3.5%) | Tualatin Hills Swim Club | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 155 | Adelynn Spurlin | 47.44 | 10 | A Min | AA: 45.79 (+1.65s | 3.5%) | North Jeffco Swim Team | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 156 | Nathan Zhong | 47.45 | 9 | A Min | AA: 45.79 (+1.66s | 3.5%) | Irvine Novaquatics | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 157 | Owen Newton | 47.54 | 10 | A Min | AA: 45.79 (+1.75s | 3.7%) | SwimNation Aquatics Programs | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 158 | Liam Reyes | 47.54 | 10 | A Min | AA: 45.79 (+1.75s | 3.7%) | Reno Aquatic Club | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
| 159 | Luke Chai | 47.57 | 9 | A Min | AA: 45.79 (+1.78s | 3.7%) | Pleasanton Seahawks | 06/27/2026 | NVST Summer Plunge 2026 | |
| 160 | Gairen Bean | 47.57 | 10 | A Min | AA: 45.79 (+1.78s | 3.7%) | South Bay Aquatics | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 161 | Orion Blue-Smith | 47.59 | 10 | A Min | AA: 45.79 (+1.80s | 3.8%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 162 | Kellan Naisbitt | 47.60 | 10 | A Min | AA: 45.79 (+1.81s | 3.8%) | Mission Viejo Nadadores | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 163 | Mason Sovich | 47.60 | 9 | A Min | AA: 45.79 (+1.81s | 3.8%) | Olympic Cascade Aquatics | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 164 | Flynn Chen | 47.62 | 10 | A Min | AA: 45.79 (+1.83s | 3.8%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 165 | Elijah Dailey | 47.67 | 10 | A Min | AA: 45.79 (+1.88s | 3.9%) | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | ||
| 166 | Noah Gaal | 47.67 | 9 | A Min | AA: 45.79 (+1.88s | 3.9%) | Aces Swim Club | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 167 | William Yangli | 47.70 | 10 | A Min | AA: 45.79 (+1.91s | 4.0%) | Rose Bowl Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 168 | Austin Mitchell | 47.75 | 10 | A Min | AA: 45.79 (+1.96s | 4.1%) | Valley Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 169 | Clayton Chester | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | Heartland Swim Assoc | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 170 | Cash Bailey | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 171 | Elliott Ganancial | 47.83 | 10 | A Min | AA: 45.79 (+2.04s | 4.3%) | Hawaii Swimming Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 172 | Noah Mobasseri | 47.89 | 9 | A Min | AA: 45.79 (+2.10s | 4.4%) | Aquazot Swim Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 173 | Haolin Chen | 47.90 | 10 | BB Min | A: 47.89 (+0.01s | 0.0%) | Pacific Dragons Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 174 | Alexander Kovnatsky | 47.90 | 10 | BB Min | A: 47.89 (+0.01s | 0.0%) | Los Angeles Swim Club | 07/25/2024 | 2024 CA SCS BREA Summer A G Champs | |
| 175 | Walker Lewis | 47.96 | 10 | BB Min | A: 47.89 (+0.07s | 0.1%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 176 | Ilay Fisher | 47.96 | 10 | BB Min | A: 47.89 (+0.07s | 0.1%) | Ccat Swimming | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 177 | Jun Lin | 48.02 | 8 | BB Min | A: 47.89 (+0.13s | 0.3%) | Seattle Metropolitan Aquatic C | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 178 | Jeffrey Crouse | 48.02 | 10 | BB Min | A: 47.89 (+0.13s | 0.3%) | Livermore AquaCowboys | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 179 | Mateo Sison | 48.03 | 10 | BB Min | A: 47.89 (+0.14s | 0.3%) | San Ramon Valley Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 180 | Vince Cho | 48.04 | 9 | BB Min | A: 47.89 (+0.15s | 0.3%) | Maywood Sparks Swim Team | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 181 | Demitry Daniel | 48.07 | 10 | BB Min | A: 47.89 (+0.18s | 0.4%) | Canyons Aquatic Club | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 182 | Ray Yu | 48.07 | 10 | BB Min | A: 47.89 (+0.18s | 0.4%) | Aquazot Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 183 | Hunter Wilson | 48.07 | 10 | BB Min | A: 47.89 (+0.18s | 0.4%) | Kamehameha Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 184 | Matvey Fadeev | 48.13 | 10 | BB Min | A: 47.89 (+0.24s | 0.5%) | Issaquah Swim Team | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 185 | Aiden Huang | 48.16 | 10 | BB Min | A: 47.89 (+0.27s | 0.6%) | DeAnza Cupertino Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 186 | Luca Goulet | 48.16 | 10 | BB Min | A: 47.89 (+0.27s | 0.6%) | King Aquatic Club | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 187 | Moses Xia | 48.17 | 10 | BB Min | A: 47.89 (+0.28s | 0.6%) | Wasc | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 188 | James Milchteim | 48.24 | 9 | BB Min | A: 47.89 (+0.35s | 0.7%) | Bay Club Aquatics | 06/19/2026 | 2026 SI Splash And Dash | |
| 189 | Kai Mihov | 48.25 | 10 | BB Min | A: 47.89 (+0.36s | 0.7%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 190 | Colin Hui | 48.26 | 10 | BB Min | A: 47.89 (+0.37s | 0.8%) | Highlands Ranch Aquatics | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 191 | Bryan HU | 48.29 | 10 | BB Min | A: 47.89 (+0.40s | 0.8%) | Aquazot Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 192 | Kai Hawkes | 48.31 | 10 | BB Min | A: 47.89 (+0.42s | 0.9%) | Multnomah Athletic Club | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 193 | Ludwik Pawelski | 48.35 | 9 | BB Min | A: 47.89 (+0.46s | 1.0%) | Sparks Piranhas Swim Team | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
| 194 | Stuart Shillington | 48.35 | 10 | BB Min | A: 47.89 (+0.46s | 1.0%) | Team Eugene Aquatics | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 195 | Elijah Hutagalung | 48.37 | 10 | BB Min | A: 47.89 (+0.48s | 1.0%) | Aspire Aquatics of Colorado | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 196 | Zuriel Cariazo | 48.38 | 10 | BB Min | A: 47.89 (+0.49s | 1.0%) | Montrose Marlins Swim Club | 05/29/2026 | 2026 CO Cortez Summer Open | |
| 197 | Bryce Alpert | 48.40 | 9 | BB Min | A: 47.89 (+0.51s | 1.1%) | Aquazot Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 198 | Hugo Linowski | 48.41 | 10 | BB Min | A: 47.89 (+0.52s | 1.1%) | Olympic Cascade Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 199 | Taeyul Heo | 48.41 | 10 | BB Min | A: 47.89 (+0.52s | 1.1%) | Pleasanton Seahawks | 06/20/2026 | Alto Summer Swelter | |
| 200 | Lichen Chi | 48.41 | 9 | BB Min | A: 47.89 (+0.52s | 1.1%) | Tualatin Hills Swim Club | 06/12/2026 | 2026 THSC June 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.