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 | |
|---|---|---|---|---|---|---|---|---|---|
| 401 | Ivan Smarshchok | 46.37 | 9 | BB Min | A: 43.09 (+3.28s | 7.1%) | King Aquatic Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 402 | Bennett Arguello | 46.38 | 9 | BB Min | A: 43.09 (+3.29s | 7.1%) | Greenwood Tiger Sharks | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 403 | Liam Larson | 46.40 | 10 | BB Min | A: 43.09 (+3.31s | 7.1%) | Pacific Swim | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 404 | Ronan Kruse | 46.40 | 10 | BB Min | A: 43.09 (+3.31s | 7.1%) | South Bay Aquatics | 05/23/2026 | 2026 SI HSA A All Ages NTS May 23 24 | |
| 405 | Erik Hai | 46.44 | 10 | BB Min | A: 43.09 (+3.35s | 7.2%) | The Claremont Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 406 | River Wilkinson | 46.47 | 10 | BB Min | A: 43.09 (+3.38s | 7.3%) | North Coast Aquatics | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 407 | Mason Howe | 46.49 | 10 | BB Min | A: 43.09 (+3.40s | 7.3%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 408 | Charles Heffernan | 46.49 | 8 | BB Min | A: 43.09 (+3.40s | 7.3%) | Legacy Aquatics | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 409 | Aiden Fu | 46.52 | 9 | BB Min | A: 43.09 (+3.43s | 7.4%) | Mission Viejo Nadadores | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 410 | Evan Yang | 46.53 | 9 | BB Min | A: 43.09 (+3.44s | 7.4%) | Lake Oswego Swim Club | 08/01/2026 | 2026 GACC End Of Season | |
| 411 | Darryl Davis | 46.53 | 9 | BB Min | A: 43.09 (+3.44s | 7.4%) | Pueblo County Swim Team | 07/10/2026 | 2026 CO Firecracker Last Chance Invite | |
| 412 | Darren Zhao | 46.54 | 10 | BB Min | A: 43.09 (+3.45s | 7.4%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 413 | Everest Orwick | 46.54 | 10 | BB Min | A: 43.09 (+3.45s | 7.4%) | Team Eugene Aquatics | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 414 | Hugo Pace | 46.54 | 10 | BB Min | A: 43.09 (+3.45s | 7.4%) | Pacifica Sea Lions | 07/25/2026 | Alto Last Splash | |
| 415 | Landon Noble | 46.55 | 10 | BB Min | A: 43.09 (+3.46s | 7.4%) | Highlands Ranch Aquatics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 416 | Daxton Lewellen | 46.57 | 9 | BB Min | A: 43.09 (+3.48s | 7.5%) | Billings YMCA | 07/10/2026 | 2026 MT HLST Last Chance Invitational | |
| 417 | James Zanutto | 46.57 | 9 | BB Min | A: 43.09 (+3.48s | 7.5%) | Burlingame Aquatics | 05/18/2024 | Alto May Cray Invitational | |
| 418 | Waylon Merchant | 46.58 | 10 | BB Min | A: 43.09 (+3.49s | 7.5%) | Fort Collins Area Swim Team | 04/24/2026 | 2026 CO FAST Spring Splash | |
| 419 | Gavin Osterman | 46.58 | 10 | BB Min | A: 43.09 (+3.49s | 7.5%) | Excel Aquatics | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 420 | Mario Aoki | 46.59 | 9 | BB Min | A: 43.09 (+3.50s | 7.5%) | Falfins Swimming | 06/20/2025 | 2025 Falfins Long Course Open | |
| 421 | Jack Cohen | 46.60 | 10 | BB Min | A: 43.09 (+3.51s | 7.5%) | Class Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 422 | Channing Pepper | 46.61 | 10 | BB Min | A: 43.09 (+3.52s | 7.6%) | Seals Aquatics | 05/29/2026 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 423 | Alex Li | 46.64 | 10 | BB Min | A: 43.09 (+3.55s | 7.6%) | Unattached | 06/20/2026 | Zone 1 South Swim Under The Stars | |
| 424 | Joseph Gordon | 46.66 | 10 | BB Min | A: 43.09 (+3.57s | 7.7%) | Unattached | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 425 | Archie McCallum | 46.68 | 8 | BB Min | A: 43.09 (+3.59s | 7.7%) | Poseidon Aquatic Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 426 | Noah Jagdev | 46.68 | 10 | BB Min | A: 43.09 (+3.59s | 7.7%) | San Ramon Valley Aquatics | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 427 | Lucas Sun | 46.70 | 10 | BB Min | A: 43.09 (+3.61s | 7.7%) | Alto Swim Club | 06/20/2026 | Alto Summer Swelter | |
| 428 | Damon Shao | 46.73 | 9 | BB Min | A: 43.09 (+3.64s | 7.8%) | Alto Swim Club | 06/20/2026 | Alto Summer Swelter | |
| 429 | Nicholas Stefan | 46.75 | 10 | BB Min | A: 43.09 (+3.66s | 7.8%) | Teamgoldusa | 07/10/2026 | 2026 NNA Silver State Championships | |
| 430 | Logan Liew | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | Streamliner Aquatics | 07/18/2025 | 2025 LCM Summer Championships | |
| 431 | Wesley Clemens | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | Bay Club Aquatics | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 432 | Aiden Mao | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 433 | Daniel Heilman | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | San Francisco Seals Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 434 | Miles Wang | 46.82 | 9 | BB Min | A: 43.09 (+3.73s | 8.0%) | Pleasanton Seahawks | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 435 | Nikshay Chandrasekar | 46.83 | 10 | BB Min | A: 43.09 (+3.74s | 8.0%) | Pro Swimming | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 436 | Yunhan Song | 46.84 | 10 | BB Min | A: 43.09 (+3.75s | 8.0%) | Eastside Aquatic Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 437 | Kolten Graver | 46.84 | 10 | BB Min | A: 43.09 (+3.75s | 8.0%) | Life Time Colorado Swim Club | 06/19/2026 | 2026 CO Falfins Long Course Open | |
| 438 | Luther Kim | 46.85 | 10 | BB Min | A: 43.09 (+3.76s | 8.0%) | Sea to Desert Swim Association | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 439 | Johnathan Weninger | 46.86 | 10 | BB Min | A: 43.09 (+3.77s | 8.0%) | Legacy Aquatics | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 440 | David Renko | 46.88 | 9 | BB Min | A: 43.09 (+3.79s | 8.1%) | Wasatch Front Fish Market | 06/27/2025 | WFFM Red White And Black 2025 | |
| 441 | Lucas Richardson | 46.88 | 10 | BB Min | A: 43.09 (+3.79s | 8.1%) | Hawaii Swimming Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 442 | Luke Xu | 46.89 | 8 | BB Min | A: 43.09 (+3.80s | 8.1%) | Seattle Metropolitan Aquatic C | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 443 | Yichen Wang | 46.90 | 9 | BB Min | A: 43.09 (+3.81s | 8.1%) | Alto Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 444 | Bennett Kohlmeyer | 46.90 | 10 | BB Min | A: 43.09 (+3.81s | 8.1%) | Life Time Colorado Swim Club | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 445 | Henry O'Shea | 46.91 | 9 | BB Min | A: 43.09 (+3.82s | 8.1%) | Billings YMCA | 06/12/2026 | 2026 RST Coach Beth Rushmore Classic | |
| 446 | Ryan Lee | 46.91 | 10 | BB Min | A: 43.09 (+3.82s | 8.1%) | Highlands Ranch Aquatics | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 447 | Jayke Hung | 46.95 | 10 | BB Min | A: 43.09 (+3.86s | 8.2%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 448 | Senge Laka | 46.98 | 9 | BB Min | A: 43.09 (+3.89s | 8.3%) | Cascadia Swimming | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 449 | Kendrick Cui | 46.98 | 9 | BB Min | A: 43.09 (+3.89s | 8.3%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 450 | Miles VanderLinden | 46.99 | 10 | BB Min | A: 43.09 (+3.90s | 8.3%) | Truckee-Tahoe Swim Team | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
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.