Western Zone Zone Boys 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 151 | Young Sun | 42.20 | 9 | A Min | AA: 41.09 (+1.11s | 2.6%) | Pro Swimming | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 152 | Elijah Dailey | 42.25 | 10 | A Min | AA: 41.09 (+1.16s | 2.7%) | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | ||
| 153 | Liam Marciel | 42.29 | 9 | A Min | AA: 41.09 (+1.20s | 2.8%) | South Valley Makos | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 154 | Eamon Balch | 42.31 | 10 | A Min | AA: 41.09 (+1.22s | 2.9%) | La Mirada Armada | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 155 | Chayton Zhou | 42.32 | 9 | A Min | AA: 41.09 (+1.23s | 2.9%) | Pleasanton Seahawks | 07/30/2026 | Long Course Far Westerns | |
| 156 | Jeffrey Crouse | 42.32 | 10 | A Min | AA: 41.09 (+1.23s | 2.9%) | Livermore AquaCowboys | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 157 | Danylo Marshchivskyi | 42.33 | 8 | A Min | AA: 41.09 (+1.24s | 2.9%) | Aquazot Swim Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 158 | Phillippe Choi | 42.33 | 10 | A Min | AA: 41.09 (+1.24s | 2.9%) | Blast Sharks | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 159 | Garrett Legg | 42.34 | 9 | A Min | AA: 41.09 (+1.25s | 3.0%) | Pleasanton Seahawks | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 160 | Milo Radis | 42.35 | 10 | A Min | AA: 41.09 (+1.26s | 3.0%) | The Spartans of La Canada | 06/11/2026 | 2026 SCS June AG Invite | |
| 161 | Henry Reed | 42.35 | 10 | A Min | AA: 41.09 (+1.26s | 3.0%) | Excel Aquatics | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 162 | Zakhar Breslavskyi | 42.37 | 10 | A Min | AA: 41.09 (+1.28s | 3.0%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 163 | Owen Tan | 42.40 | 9 | A Min | AA: 41.09 (+1.31s | 3.1%) | Hawaii Swimming Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 164 | Theodore Post | 42.41 | 9 | A Min | AA: 41.09 (+1.32s | 3.1%) | Swim Team of Placentia | 06/11/2026 | 2026 SCS June AG Invite | |
| 165 | Andrew Knol | 42.45 | 10 | A Min | AA: 41.09 (+1.36s | 3.2%) | Pacific Swim | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 166 | Cedrick Lo | 42.47 | 10 | A Min | AA: 41.09 (+1.38s | 3.2%) | Sandpipers of Nevada | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 167 | Vivaan Jagadish | 42.48 | 10 | A Min | AA: 41.09 (+1.39s | 3.3%) | Tualatin Hills Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 168 | Jaxon Despain | 42.49 | 10 | A Min | AA: 41.09 (+1.40s | 3.3%) | Denver Swim Academy | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 169 | Fletcher Sumner | 42.51 | 10 | A Min | AA: 41.09 (+1.42s | 3.3%) | Mission Aurora Colorado Swimmi | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 170 | Anderson Bradley | 42.52 | 10 | A Min | AA: 41.09 (+1.43s | 3.4%) | Coastal Machine Aquatics Club | 06/11/2026 | 2026 SCS June AG Invite | |
| 171 | Jason Buhr | 42.53 | 10 | A Min | AA: 41.09 (+1.44s | 3.4%) | Pikes Peak Athletics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 172 | Devin Song | 42.54 | 9 | A Min | AA: 41.09 (+1.45s | 3.4%) | Rose Bowl Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 173 | Lichen Chi | 42.54 | 9 | A Min | AA: 41.09 (+1.45s | 3.4%) | Tualatin Hills Swim Club | 06/12/2026 | 2026 THSC June Open | |
| 174 | Joshua Park | 42.54 | 10 | A Min | AA: 41.09 (+1.45s | 3.4%) | Las Vegas Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 175 | Ashwin Tiwari | 42.61 | 9 | A Min | AA: 41.09 (+1.52s | 3.6%) | Olympic Cascade Aquatics | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 176 | Derek Folk | 42.63 | 10 | A Min | AA: 41.09 (+1.54s | 3.6%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 177 | Nikoloz Zhorzholiani | 42.63 | 10 | A Min | AA: 41.09 (+1.54s | 3.6%) | Seattle Metropolitan Aquatic C | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 178 | Michael Kirkendall | 42.67 | 10 | A Min | AA: 41.09 (+1.58s | 3.7%) | Buenaventura Swim Club | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 179 | Evan Jun | 42.68 | 9 | A Min | AA: 41.09 (+1.59s | 3.7%) | Kamehameha Swim Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 180 | Kevin Lou | 42.73 | 10 | A Min | AA: 41.09 (+1.64s | 3.8%) | Irvine Novaquatics | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 181 | Ethan Huang | 42.74 | 10 | A Min | AA: 41.09 (+1.65s | 3.9%) | Rose Bowl Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 182 | Harvey Mei | 42.74 | 10 | A Min | AA: 41.09 (+1.65s | 3.9%) | Mission Viejo Nadadores | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 183 | Nathan Schallberger | 42.77 | 10 | A Min | AA: 41.09 (+1.68s | 3.9%) | Daland Swim Team | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 184 | Aiden Mulcahy | 42.77 | 10 | A Min | AA: 41.09 (+1.68s | 3.9%) | Aulea Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 185 | Frederick Sun | 42.78 | 9 | A Min | AA: 41.09 (+1.69s | 4.0%) | Rose Bowl Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 186 | Lucas Vu | 42.81 | 10 | A Min | AA: 41.09 (+1.72s | 4.0%) | Irvine Novaquatics | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 187 | Jarvis Qu | 42.82 | 9 | A Min | AA: 41.09 (+1.73s | 4.0%) | Mission Viejo Nadadores | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 188 | Cyrus Yang | 42.82 | 10 | A Min | AA: 41.09 (+1.73s | 4.0%) | Quicksilver Swimming | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 189 | Mateo Franco-Abeyta | 42.83 | 10 | A Min | AA: 41.09 (+1.74s | 4.1%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 190 | Owen Richards | 42.91 | 10 | A Min | AA: 41.09 (+1.82s | 4.2%) | Heartland Swim Assoc | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 191 | Ludwik Pawelski | 42.95 | 9 | A Min | AA: 41.09 (+1.86s | 4.3%) | Sparks Piranhas Swim Team | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
| 192 | Hudson Porter | 42.95 | 10 | A Min | AA: 41.09 (+1.86s | 4.3%) | Wave Aquatics | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 193 | Keller Kirkpatrick | 43.02 | 9 | A Min | AA: 41.09 (+1.93s | 4.5%) | Lake Oswego Swim Club | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 194 | Oliver King | 43.08 | 10 | A Min | AA: 41.09 (+1.99s | 4.6%) | Irvine Novaquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 195 | Jacob Akerley | 43.10 | 10 | BB Min | A: 43.09 (+0.01s | 0.0%) | Rocky Mountain Rapids | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 196 | Max Ong | 43.11 | 10 | BB Min | A: 43.09 (+0.02s | 0.0%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 197 | Isaac Podraza | 43.12 | 10 | BB Min | A: 43.09 (+0.03s | 0.1%) | South Orange County Aquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 198 | James Milchteim | 43.16 | 9 | BB Min | A: 43.09 (+0.07s | 0.2%) | Bay Club Aquatics | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 199 | Owen Zeng | 43.19 | 10 | BB Min | A: 43.09 (+0.10s | 0.2%) | Trident Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 200 | Vincent Nan | 43.26 | 10 | BB Min | A: 43.09 (+0.17s | 0.4%) | Pacific Dragons Swim Team | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
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.