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 | |
|---|---|---|---|---|---|---|---|---|---|
| 851 | Aaron Yang | 51.16 | 10 | B Min | BB: 49.29 (+1.87s | 3.7%) | Wave Aquatics | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 852 | Ethan Lyu | 51.20 | 9 | B Min | BB: 49.29 (+1.91s | 3.7%) | Tri-city Channel Cats | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 853 | Jeremy Pei | 51.20 | 10 | B Min | BB: 49.29 (+1.91s | 3.7%) | Columbia River Swim Team | 05/16/2026 | 2026 TEAM Showdown | |
| 854 | Alex Wu | 51.21 | 7 | B Min | BB: 49.29 (+1.92s | 3.7%) | Santa Clara Swim Club | 06/20/2026 | Zone 1 South Swim Under The Stars | |
| 855 | Gairen Bean | 51.25 | 10 | B Min | BB: 49.29 (+1.96s | 3.8%) | South Bay Aquatics | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 856 | Killian Mann | 51.25 | 9 | B Min | BB: 49.29 (+1.96s | 3.8%) | Olympic Cascade Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 857 | Benjamin Foster | 51.26 | 9 | B Min | BB: 49.29 (+1.97s | 3.8%) | Neptune Swimming | 06/12/2026 | Neptune Swimming June LC Meet | |
| 858 | Nolan Sun | 51.26 | 10 | B Min | BB: 49.29 (+1.97s | 3.8%) | Pleasanton Seahawks | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 859 | Trevor Lipscomb | 51.27 | 10 | B Min | BB: 49.29 (+1.98s | 3.9%) | Corvallis Aquatic Team | 06/13/2026 | 2026 Mike Morris Memorial Invitational Copi | |
| 860 | Samuel Ellsworth | 51.28 | 10 | B Min | BB: 49.29 (+1.99s | 3.9%) | Boise Swim Club | 05/16/2025 | 2025 Spring Fling LC Invitational | |
| 861 | Wyatt Hellickson | 51.28 | 10 | B Min | BB: 49.29 (+1.99s | 3.9%) | Life Time Oregon Swim Team | 06/05/2026 | 2026 CST Summer Invitational | |
| 862 | Alroy Conry | 51.30 | 8 | B Min | BB: 49.29 (+2.01s | 3.9%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 863 | Alexander Krapp | 51.31 | 10 | B Min | BB: 49.29 (+2.02s | 3.9%) | Thurston Olympians Swim Club | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 864 | Matvii Medvediev | 51.32 | 8 | B Min | BB: 49.29 (+2.03s | 4.0%) | Tornadoes Swim Team | 06/12/2026 | 73rd Ted Walker Invitational 2026 | |
| 865 | Michael Sohn | 51.32 | 10 | B Min | BB: 49.29 (+2.03s | 4.0%) | Front Range Barracudas | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 866 | Timur Shafigulin | 51.33 | 10 | B Min | BB: 49.29 (+2.04s | 4.0%) | Wave Aquatics | 05/02/2025 | 2025 PN BC May Flowers | |
| 867 | Ahaan Iragavarapu | 51.34 | 10 | B Min | BB: 49.29 (+2.05s | 4.0%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 868 | Leif Osborne | 51.35 | 9 | B Min | BB: 49.29 (+2.06s | 4.0%) | Bay Club Aquatics | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 869 | Ahmet Okyay | 51.36 | 10 | B Min | BB: 49.29 (+2.07s | 4.0%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 870 | Kevin Zhang | 51.41 | 9 | B Min | BB: 49.29 (+2.12s | 4.1%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 871 | Camden Sparenborg | 51.42 | 8 | B Min | BB: 49.29 (+2.13s | 4.1%) | Utah Valley Aquatics | 06/21/2025 | 2025 UT HAST RWB BC Medals Meet | |
| 872 | Om Bhuta | 51.45 | 10 | B Min | BB: 49.29 (+2.16s | 4.2%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 873 | Ansh Dhuri | 51.47 | 10 | B Min | BB: 49.29 (+2.18s | 4.2%) | Issaquah Swim Team | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 874 | Vaughn Jamison | 51.48 | 10 | B Min | BB: 49.29 (+2.19s | 4.3%) | Aspire Aquatics of Colorado | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 875 | Anthony Piazza | 51.52 | 9 | B Min | BB: 49.29 (+2.23s | 4.3%) | Otter Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 876 | Bodie Hendrickson | 51.55 | 10 | B Min | BB: 49.29 (+2.26s | 4.4%) | Hilltop Aquatic Swim Team | 06/21/2025 | 2025 UT HAST RWB BC Medals Meet | |
| 877 | Jake Gehlert | 51.55 | 9 | B Min | BB: 49.29 (+2.26s | 4.4%) | Piedmont Swim Team | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 878 | Andrew Dobing | 51.56 | 10 | B Min | BB: 49.29 (+2.27s | 4.4%) | Excel Aquatics | 04/24/2026 | 2026 Strong Tower Invite | |
| 879 | Arunas Babusis | 51.57 | 9 | B Min | BB: 49.29 (+2.28s | 4.4%) | Apex | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 880 | Maxx Yu | 51.57 | 10 | B Min | BB: 49.29 (+2.28s | 4.4%) | Burlingame Aquatics | 06/20/2026 | Alto Summer Swelter | |
| 881 | Denis Tumelia | 51.57 | 9 | B Min | BB: 49.29 (+2.28s | 4.4%) | Mission Aurora Colorado Swimmi | 06/06/2026 | 2026 CO MACS Suburban League Invite | |
| 882 | Beckett Neeley | 51.60 | 10 | B Min | BB: 49.29 (+2.31s | 4.5%) | Front Range Barracudas | 05/23/2026 | 2026 CO CUDA Vs AQUA Dual | |
| 883 | Cormac Weathers | 51.60 | 10 | B Min | BB: 49.29 (+2.31s | 4.5%) | Salem Swim Club | 06/05/2026 | 2026 CST Summer Invitational | |
| 884 | Maximilian Kuo | 51.62 | 7 | B Min | BB: 49.29 (+2.33s | 4.5%) | California Dolphins Swim Team | 05/02/2026 | Alto Spring Jam CBA | |
| 885 | Oleg Rassadin | 51.63 | 8 | B Min | BB: 49.29 (+2.34s | 4.5%) | Denver Swim Academy | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 886 | Kaan Tufan | 51.63 | 9 | B Min | BB: 49.29 (+2.34s | 4.5%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 887 | Alexey Kostryukov | 51.64 | 10 | B Min | BB: 49.29 (+2.35s | 4.6%) | Alameda Gators | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 888 | Dominic Angerami | 51.65 | 10 | B Min | BB: 49.29 (+2.36s | 4.6%) | San Francisco Seals Swim Team | 06/12/2026 | Neptune Swimming June LC Meet | |
| 889 | Nico Hannemann | 51.66 | 9 | B Min | BB: 49.29 (+2.37s | 4.6%) | Cascade Swim Club | 06/19/2026 | 2026 IE VS Starlight Open (USAS) | |
| 890 | Reid Barylski | 51.67 | 10 | B Min | BB: 49.29 (+2.38s | 4.6%) | Neptune Swimming | 06/12/2026 | Neptune Swimming June LC Meet | |
| 891 | Dmitry Temkin | 51.67 | 9 | B Min | BB: 49.29 (+2.38s | 4.6%) | West Coast Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 892 | William MacDonald | 51.68 | 10 | B Min | BB: 49.29 (+2.39s | 4.6%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 893 | Ethan Tse | 51.71 | 9 | B Min | BB: 49.29 (+2.42s | 4.7%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 894 | Ryan Hu | 51.73 | 8 | B Min | BB: 49.29 (+2.44s | 4.7%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 895 | Finn Scott | 51.73 | 10 | B Min | BB: 49.29 (+2.44s | 4.7%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 896 | Liam Arrobo | 51.76 | 7 | B Min | BB: 49.29 (+2.47s | 4.8%) | Hillsboro Swim Team | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 897 | Bennett Haselfeld | 51.76 | 10 | B Min | BB: 49.29 (+2.47s | 4.8%) | Issaquah Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 898 | Joaquin Garcia | 51.76 | 10 | B Min | BB: 49.29 (+2.47s | 4.8%) | Unattached | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 899 | Ferris Mecleary | 51.78 | 8 | B Min | BB: 49.29 (+2.49s | 4.8%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 900 | Craig Beasley | 51.79 | 9 | B Min | BB: 49.29 (+2.50s | 4.8%) | Multnomah Athletic Club | 07/04/2026 | Pendleton Open 2026 | |
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.