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 | |
|---|---|---|---|---|---|---|---|---|---|
| 201 | Pranav Chandramouli | 44.68 | 10 | BB Min | A: 43.09 (+1.59s | 3.6%) | Gold\\\\\\'s Aquatics Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 202 | Hantian You | 44.68 | 10 | BB Min | A: 43.09 (+1.59s | 3.6%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 203 | Ethan Huang | 44.69 | 10 | BB Min | A: 43.09 (+1.60s | 3.6%) | Rose Bowl Aquatics | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 204 | Beau Jakubowski | 44.71 | 9 | BB Min | A: 43.09 (+1.62s | 3.6%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 205 | Thomas Nguyen | 44.73 | 10 | BB Min | A: 43.09 (+1.64s | 3.7%) | Cascade Swim Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 206 | Owen Rapp | 44.75 | 10 | BB Min | A: 43.09 (+1.66s | 3.7%) | Front Range Barracudas | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 207 | Emerson Wescott | 44.75 | 10 | BB Min | A: 43.09 (+1.66s | 3.7%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 208 | Ashwin Tiwari | 44.76 | 9 | BB Min | A: 43.09 (+1.67s | 3.7%) | Olympic Cascade Aquatics | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 209 | Ian Jo | 44.78 | 10 | BB Min | A: 43.09 (+1.69s | 3.8%) | Irvine Novaquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 210 | Kian Bryson | 44.80 | 9 | BB Min | A: 43.09 (+1.71s | 3.8%) | Lake Oswego Swim Club | 06/06/2025 | 2025 THSC June Invitational | |
| 211 | Jason Ye | 44.82 | 10 | BB Min | A: 43.09 (+1.73s | 3.9%) | Alto Swim Club | 06/27/2025 | Alto Summer Swelter | |
| 212 | Adrian Pascu | 44.83 | 9 | BB Min | A: 43.09 (+1.74s | 3.9%) | Gold\\\\\\'s Aquatics Club (Camas) | 05/01/2026 | 2026 THSC Spring Invite | |
| 213 | Henry Kyles | 44.85 | 10 | BB Min | A: 43.09 (+1.76s | 3.9%) | Bellingham Bay Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 214 | Kevin Wang | 44.88 | 10 | BB Min | A: 43.09 (+1.79s | 4.0%) | Brea Aquatics | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 215 | Oliver Pearce | 44.89 | 10 | BB Min | A: 43.09 (+1.80s | 4.0%) | Aces Swim Club | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 216 | Samuel Diemert | 44.91 | 9 | BB Min | A: 43.09 (+1.82s | 4.1%) | Mission Aurora Colorado Swimmi | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 217 | Nicholas Harrold | 44.92 | 10 | BB Min | A: 43.09 (+1.83s | 4.1%) | Pikes Peak Athletics | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 218 | Miro Wang | 44.94 | 10 | BB Min | A: 43.09 (+1.85s | 4.1%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 219 | Owen Yan | 44.98 | 10 | BB Min | A: 43.09 (+1.89s | 4.2%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 220 | Garrett Legg | 45.00 | 8 | BB Min | A: 43.09 (+1.91s | 4.2%) | Pleasanton Seahawks | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 221 | Colin Hui | 45.02 | 10 | BB Min | A: 43.09 (+1.93s | 4.3%) | Highlands Ranch Aquatics | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 222 | Marco Gonzalez | 45.02 | 10 | BB Min | A: 43.09 (+1.93s | 4.3%) | South Bay Aquatics | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 223 | Jaxon Despain | 45.03 | 9 | BB Min | A: 43.09 (+1.94s | 4.3%) | Denver Swim Academy | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 224 | Devin Song | 45.04 | 9 | BB Min | A: 43.09 (+1.95s | 4.3%) | Rose Bowl Aquatics | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 225 | Anderson Bradley | 45.05 | 10 | BB Min | A: 43.09 (+1.96s | 4.4%) | Coastal Machine Aquatics Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 226 | Vincent Nan | 45.10 | 10 | BB Min | A: 43.09 (+2.01s | 4.5%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 227 | Charles Knigge | 45.11 | 10 | BB Min | A: 43.09 (+2.02s | 4.5%) | Spokane Waves Aquatic Team | 04/25/2026 | 2026 SWAT Spring Fling | |
| 228 | Henry Luevano | 45.14 | 9 | BB Min | A: 43.09 (+2.05s | 4.5%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 229 | Mikhail Lagzdin | 45.16 | 9 | BB Min | A: 43.09 (+2.07s | 4.6%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 230 | Deniz Gokbulut | 45.19 | 10 | BB Min | A: 43.09 (+2.10s | 4.6%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 231 | Daniel Reschke | 45.20 | 10 | BB Min | A: 43.09 (+2.11s | 4.7%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 232 | Jonathan Wen | 45.21 | 10 | BB Min | A: 43.09 (+2.12s | 4.7%) | Rancho San Dieguito | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 233 | Jaafar Lahmidi | 45.23 | 10 | BB Min | A: 43.09 (+2.14s | 4.7%) | Foothills Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 234 | Aleksandr Rybin | 45.25 | 10 | BB Min | A: 43.09 (+2.16s | 4.8%) | King Aquatic Club | 04/25/2025 | 2025 PN KING Spring Derby | |
| 235 | Adrian Goo | 45.26 | 10 | BB Min | A: 43.09 (+2.17s | 4.8%) | Walnut Creek Aquabears | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 236 | Kaulu Au | 45.28 | 10 | BB Min | A: 43.09 (+2.19s | 4.8%) | Rainbow Aquatics | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 237 | Martin Li | 45.30 | 9 | BB Min | A: 43.09 (+2.21s | 4.9%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 238 | Sebastian Saade | 45.33 | 10 | BB Min | A: 43.09 (+2.24s | 4.9%) | Los Angeles Swim Club | 06/13/2024 | 2024 CA SCS CANY June Age Group Invite | |
| 239 | Avyan Bajpai | 45.33 | 9 | BB Min | A: 43.09 (+2.24s | 4.9%) | Hillsboro Swim Team | 05/01/2026 | 2026 THSC Spring Invite | |
| 240 | Caleb Taussig | 45.34 | 9 | BB Min | A: 43.09 (+2.25s | 5.0%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 241 | Rylan Brill | 45.42 | 10 | BB Min | A: 43.09 (+2.33s | 5.1%) | Colorado Stingrays Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 242 | Carson Yin | 45.42 | 10 | BB Min | A: 43.09 (+2.33s | 5.1%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 243 | George Yu | 45.46 | 10 | BB Min | A: 43.09 (+2.37s | 5.2%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 244 | Kai Jo | 45.48 | 10 | BB Min | A: 43.09 (+2.39s | 5.3%) | Unattached | 08/06/2025 | 2025 Western Zone Age Group Championships | |
| 245 | Joshua Wheaton | 45.53 | 10 | BB Min | A: 43.09 (+2.44s | 5.4%) | Tualatin Hills Swim Club | 05/02/2025 | 2025 THSC Spring Invitational | |
| 246 | Dylan sun | 45.53 | 10 | BB Min | A: 43.09 (+2.44s | 5.4%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 247 | Wesley Wei | 45.56 | 10 | BB Min | A: 43.09 (+2.47s | 5.4%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 248 | Liam Kwak | 45.60 | 10 | BB Min | A: 43.09 (+2.51s | 5.5%) | Life Time Colorado Swim Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 249 | Silvio Leal | 45.61 | 10 | BB Min | A: 43.09 (+2.52s | 5.5%) | Maui Swim Club | 05/02/2026 | 2026 MAGSA LCM B 1 Meet | |
| 250 | Keller Kirkpatrick | 45.63 | 9 | BB Min | A: 43.09 (+2.54s | 5.6%) | Lake Oswego Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
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.