Western Zone Zone Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2001 | Miles Xu | 52.32 | 8 | B: 48.29 (+4.03s | 7.7%) | Northglenn Fusion Swim Club | 02/13/2026 | 2026 CO Loveland Last Chance Sweetheart Meet | ||
| 2002 | Walter Huang | 52.32 | 8 | B: 48.29 (+4.03s | 7.7%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | ||
| 2003 | Otto Kneller | 52.33 | 10 | B: 48.29 (+4.04s | 7.7%) | Durango Swim Club | 05/30/2025 | 2025 CO Cortez SCY Summer Open | ||
| 2004 | Riley Buckingham | 52.35 | 9 | B: 48.29 (+4.06s | 7.8%) | Rogue Rapids | 08/08/2025 | Bend Swim Club August Invitational | ||
| 2005 | Harrison Chen | 52.36 | 9 | B: 48.29 (+4.07s | 7.8%) | DeAnza Cupertino Aquatics | 03/28/2026 | LAMV C B A+ Meet | ||
| 2006 | Marcus Vaughn | 52.36 | 10 | B: 48.29 (+4.07s | 7.8%) | Vandal Aquatic Club | 10/26/2025 | 2025 IE VAN Trick Or Treat Progressive Invita | ||
| 2007 | Carlo Pozzi | 52.38 | 9 | B: 48.29 (+4.09s | 7.8%) | The Olympic Club | 09/20/2025 | WANV CBA+ Endless Summer Meet | ||
| 2008 | Alex Zhang | 52.39 | 10 | B: 48.29 (+4.10s | 7.8%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | ||
| 2009 | Jeremy Pei | 52.39 | 10 | B: 48.29 (+4.10s | 7.8%) | Columbia River Swim Team | 02/01/2025 | CRST Legacy Dual In The Pool | ||
| 2010 | Hazlitt Davenport | 52.40 | 8 | B: 48.29 (+4.11s | 7.8%) | Denver Triton Swim Team | 02/21/2026 | 2026 CO DSA Last Chance | ||
| 2011 | Ezekiel Valencia | 52.40 | 9 | B: 48.29 (+4.11s | 7.8%) | La Junta Tigersharks | 06/19/2026 | 2026 Max Shirley Radiff Memorial | ||
| 2012 | Denis Tumelia | 52.44 | 9 | B: 48.29 (+4.15s | 7.9%) | Mission Aurora Colorado Swimmi | 12/12/2025 | 2025 CO NJ Blizzard Invite | ||
| 2013 | Mateo Lopez | 52.47 | 8 | B: 48.29 (+4.18s | 8.0%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | ||
| 2014 | Kabir Sharma | 52.47 | 8 | B: 48.29 (+4.18s | 8.0%) | Wave Aquatics | 04/25/2026 | 2026 PN SSCD Spring Open Approved | ||
| 2015 | Thomas Rea | 52.48 | 9 | B: 48.29 (+4.19s | 8.0%) | Redding Swim Club | 11/22/2025 | Thankswimming Classic 2025 | ||
| 2016 | Jorge Gomez | 52.48 | 9 | B: 48.29 (+4.19s | 8.0%) | Bellingham Bay Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 3 Approved | ||
| 2017 | Sam Peterson | 52.49 | 8 | B: 48.29 (+4.20s | 8.0%) | Excel Aquatics | 01/18/2026 | 2026 PN BC Snowflake Classic Invite Approved | ||
| 2018 | Haomiao Zhuang | 52.50 | 7 | B: 48.29 (+4.21s | 8.0%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | ||
| 2019 | Oliver Woo | 52.51 | 9 | B: 48.29 (+4.22s | 8.0%) | California Dolphins Swim Team | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | ||
| 2020 | Arthur Vyshnyakov | 52.53 | 8 | B: 48.29 (+4.24s | 8.1%) | Reno Aquatic Club | 10/17/2025 | 2025 KING OF THE HILL CHALLENGE | ||
| 2021 | Eli Wu | 52.54 | 10 | B: 48.29 (+4.25s | 8.1%) | South San Francisco Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | ||
| 2022 | Adam Sherrill | 52.55 | 10 | B: 48.29 (+4.26s | 8.1%) | Star Aquatics | 10/03/2025 | 2025 STAR September Friday Night At The Races | ||
| 2023 | Ettore Billip | 52.55 | 9 | B: 48.29 (+4.26s | 8.1%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | ||
| 2024 | Carter De Ochoa | 52.55 | 10 | B: 48.29 (+4.26s | 8.1%) | Tule Nation Tritons | 11/23/2024 | 2024 FDST ABC Meet Dr Dowain Wright Memorial | ||
| 2025 | Wyatt Galuska | 52.55 | 10 | B: 48.29 (+4.26s | 8.1%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | ||
| 2026 | Max Wang | 52.55 | 9 | B: 48.29 (+4.26s | 8.1%) | Chinook Aquatic Club | 11/09/2025 | 2025 PN C Pentathlon | ||
| 2027 | Shing Lee | 52.56 | 10 | B: 48.29 (+4.27s | 8.1%) | Thurston Olympians Swim Club | 05/16/2026 | 2026 PN TOSC OST PAC May Meet Approved | ||
| 2028 | Leif Chang | 52.56 | 10 | B: 48.29 (+4.27s | 8.1%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | ||
| 2029 | Ethan Wei | 52.56 | 6 | B: 48.29 (+4.27s | 8.1%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | ||
| 2030 | Elijah Larsen | 52.56 | 9 | B: 48.29 (+4.27s | 8.1%) | Wasatch Front Fish Market | 12/10/2025 | WFFM December Developmental | ||
| 2031 | Leon Colasito | 52.57 | 10 | B: 48.29 (+4.28s | 8.1%) | Bremerton YMCA Swim Team | 05/16/2026 | 2026 PN (PSSA) BYST Spring Fling Approved | ||
| 2032 | Finn Rodrigues | 52.59 | 9 | B: 48.29 (+4.30s | 8.2%) | Rainbow Aquatics | 11/09/2025 | OSL A+ SCY Meet | ||
| 2033 | Doldon Watkins | 52.59 | 10 | B: 48.29 (+4.30s | 8.2%) | Roseburg Y Swim Team | 02/08/2026 | 2026 AAA SC Final Countdown Open | ||
| 2034 | Declan Brehmer | 52.59 | 10 | B: 48.29 (+4.30s | 8.2%) | Mission Aurora Colorado Swimmi | 02/13/2026 | 2026 CO Loveland Last Chance Sweetheart Meet | ||
| 2035 | Ayden Xiao | 52.59 | 8 | B: 48.29 (+4.30s | 8.2%) | Olympic Cascade Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | ||
| 2036 | Boden Ruger | 52.61 | 9 | B: 48.29 (+4.32s | 8.2%) | Univ. of Denver Hilltoppers | 02/13/2026 | 2026 CO NJ Groundhog Invite | ||
| 2037 | Aaron Huang | 52.61 | 10 | B: 48.29 (+4.32s | 8.2%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | ||
| 2038 | Tioma Iskandar | 52.62 | 10 | B: 48.29 (+4.33s | 8.2%) | The Olympic Club | 04/18/2026 | RP SWIM CLUB (PRNA) SPRING SWIM FEST! | ||
| 2039 | Yuan Basilio | 52.62 | 9 | B: 48.29 (+4.33s | 8.2%) | Reno Aquatic Club | 03/14/2026 | 2026 NNA AGO | ||
| 2040 | Riddick Burns | 52.63 | 8 | B: 48.29 (+4.34s | 8.2%) | Lake Oswego Swim Club | 02/06/2026 | 2026 Forest Grove Coast Range Qualifier | ||
| 2041 | Charlie Green | 52.63 | 9 | B: 48.29 (+4.34s | 8.2%) | Missoula YMCA Swim Team | 12/04/2025 | 2025 Holiday Swim Festival | ||
| 2042 | Zackery Vergara | 52.64 | 9 | B: 48.29 (+4.35s | 8.3%) | Gilroy Gators Swim Team | 10/25/2025 | GGST Spooktacular 2025 | ||
| 2043 | Baylen Huynh | 52.64 | 9 | B: 48.29 (+4.35s | 8.3%) | Valley Splash | 10/04/2024 | SCSC Pacific Swimming Short Cours C B A+ Meet | ||
| 2044 | Aekagra Nagapurkar | 52.65 | 9 | B: 48.29 (+4.36s | 8.3%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | ||
| 2045 | Moqi Zhu | 52.66 | 8 | B: 48.29 (+4.37s | 8.3%) | Santa Clara Swim Club | 10/25/2025 | GGST Spooktacular 2025 | ||
| 2046 | Dean Carper | 52.67 | 10 | B: 48.29 (+4.38s | 8.3%) | Seattle Metropolitan Aquatic C | 01/12/2025 | 2025 PN SMAC January Mini Meet | ||
| 2047 | Jacob Rainis | 52.67 | 8 | B: 48.29 (+4.38s | 8.3%) | Manta Ray Aquatics | 12/06/2025 | 2025 IE VS Christmas Open | ||
| 2048 | Noel Sea | 52.67 | 9 | B: 48.29 (+4.38s | 8.3%) | Tualatin Hills Swim Club | 02/06/2026 | 2026 Forest Grove Coast Range Qualifier | ||
| 2049 | Caleb Nguyen | 52.67 | 10 | B: 48.29 (+4.38s | 8.3%) | East Bay Silver Dolphins | 09/13/2025 | East Bay Silver Dolphins Short Course C B BB+ | ||
| 2050 | Lawson Tenfjord | 52.68 | 10 | B: 48.29 (+4.39s | 8.3%) | Highlands Ranch Aquatics | 12/13/2024 | 2024 CO Falfins Holiday 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.