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 | |
|---|---|---|---|---|---|---|---|---|---|
| 901 | 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 | |
| 902 | 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 | |
| 903 | Cormac Weathers | 51.60 | 10 | B Min | BB: 49.29 (+2.31s | 4.5%) | Salem Swim Club | 06/05/2026 | 2026 CST Summer Invitational | |
| 904 | Royce Hammond | 51.61 | 10 | B Min | BB: 49.29 (+2.32s | 4.5%) | Manta Ray Aquatics | 07/10/2026 | 2026 Sizzlin Summer Splash Copied | |
| 905 | 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 | |
| 906 | Oleg Rassadin | 51.63 | 9 | B Min | BB: 49.29 (+2.34s | 4.5%) | Denver Swim Academy | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 907 | 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 | |
| 908 | 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+ | |
| 909 | 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 | |
| 910 | 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) | |
| 911 | Dmitry Temkin | 51.67 | 9 | B Min | BB: 49.29 (+2.38s | 4.6%) | West Coast Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 912 | 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 | |
| 913 | 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 | |
| 914 | 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 | |
| 915 | Finn Scott | 51.73 | 10 | B Min | BB: 49.29 (+2.44s | 4.7%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 916 | 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 | |
| 917 | Joaquin Garcia | 51.76 | 10 | B Min | BB: 49.29 (+2.47s | 4.8%) | Unattached | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 918 | 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 | |
| 919 | Quincy Lofton | 51.80 | 8 | B Min | BB: 49.29 (+2.51s | 4.8%) | Star Aquatics | 04/17/2026 | 2026 STAR April Friday Night At The Races | |
| 920 | Lucas Hernandez | 51.80 | 10 | B Min | BB: 49.29 (+2.51s | 4.8%) | Bellevue Club Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 921 | Shivansh Podder | 51.81 | 8 | B Min | BB: 49.29 (+2.52s | 4.9%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 922 | Albert Shifrin | 51.85 | 10 | B Min | BB: 49.29 (+2.56s | 4.9%) | Mjcc Stingrays | 08/01/2026 | 2026 GACC End Of Season | |
| 923 | Austin Zhou | 51.85 | 9 | B Min | BB: 49.29 (+2.56s | 4.9%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 924 | Andrew Moehle | 51.89 | 10 | B Min | BB: 49.29 (+2.60s | 5.0%) | Cottonwood Heights Aquatics | 06/27/2025 | WFFM Red White And Black 2025 | |
| 925 | Eli Ferris | 51.90 | 9 | B Min | BB: 49.29 (+2.61s | 5.0%) | Elko Swim Team | 05/16/2025 | 2025 Spring Fling LC Invitational | |
| 926 | Kotia Zvereff | 51.90 | 8 | B Min | BB: 49.29 (+2.61s | 5.0%) | Unattached | 05/29/2026 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 927 | Levi Heilbrun | 51.90 | 10 | B Min | BB: 49.29 (+2.61s | 5.0%) | Bend Swim Club | 06/19/2026 | Bend Swim Club Sun Country Invite 2026 | |
| 928 | Erik Kurylenko | 51.95 | 9 | B Min | BB: 49.29 (+2.66s | 5.1%) | Foothills Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 929 | Jimmy Chen | 51.96 | 9 | B Min | BB: 49.29 (+2.67s | 5.1%) | Monterey Park Manta Rays | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 930 | Vivaan Agarwal | 51.96 | 9 | B Min | BB: 49.29 (+2.67s | 5.1%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 931 | Christopher Rasmuson | 51.96 | 9 | B Min | BB: 49.29 (+2.67s | 5.1%) | Bishop Swim Team | 07/10/2026 | 2026 NNA Silver State Championships | |
| 932 | Jordan Fuertes | 52.02 | 10 | B Min | BB: 49.29 (+2.73s | 5.2%) | Maui Dolphins Swim Club | 07/03/2026 | 2026 MAGSA LCM LAST CHANCE Copied | |
| 933 | Owen Matarazzo | 52.07 | 10 | B Min | BB: 49.29 (+2.78s | 5.3%) | The Spartans of La Canada | 06/11/2026 | 2026 SCS June AG Invite | |
| 934 | Noah Granek Brown | 52.08 | 8 | B Min | BB: 49.29 (+2.79s | 5.4%) | Lake Oswego Swim Club | 08/01/2026 | 2026 GACC End Of Season | |
| 935 | Blake Baisch | 52.08 | 9 | B Min | BB: 49.29 (+2.79s | 5.4%) | Seattle Metropolitan Aquatic C | 05/29/2025 | 2025 IE VS Apple Capital | |
| 936 | Miles Vuong | 52.08 | 10 | B Min | BB: 49.29 (+2.79s | 5.4%) | SOL Swim Team | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 937 | Cooper Casebolt | 52.10 | 10 | B Min | BB: 49.29 (+2.81s | 5.4%) | Life Time Colorado Swim Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 938 | Logan Shen | 52.10 | 10 | B Min | BB: 49.29 (+2.81s | 5.4%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 939 | Henry Krovitz | 52.13 | 10 | B Min | BB: 49.29 (+2.84s | 5.4%) | Univ. of Denver Hilltoppers | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 940 | Jacob Hernandez | 52.13 | 8 | B Min | BB: 49.29 (+2.84s | 5.4%) | Pikes Peak Athletics | 06/19/2026 | 2026 CO Falfins Long Course Open | |
| 941 | Will Wu | 52.15 | 10 | B Min | BB: 49.29 (+2.86s | 5.5%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 942 | Calvin Littlejohn | 52.15 | 9 | B Min | BB: 49.29 (+2.86s | 5.5%) | Eugene City Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 943 | Alexander Malcomson | 52.18 | 8 | B Min | BB: 49.29 (+2.89s | 5.5%) | Bellevue Club Swim Team | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 944 | Calder McPheeters | 52.18 | 10 | B Min | BB: 49.29 (+2.89s | 5.5%) | California Capital Aquatics | 06/19/2026 | Reno Aquatic Club Gamble | |
| 945 | Theodore Gramer | 52.18 | 10 | B Min | BB: 49.29 (+2.89s | 5.5%) | SwimTLC-Parker Phenomena Swim | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 946 | Benjamin Coughlin | 52.20 | 10 | B Min | BB: 49.29 (+2.91s | 5.6%) | Kamehameha Swim Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 947 | Mateo Ibarra | 52.21 | 10 | B Min | BB: 49.29 (+2.92s | 5.6%) | Mount Hood Aquatics | 06/12/2026 | 73rd Ted Walker Invitational 2026 | |
| 948 | Ethan Smith | 52.22 | 10 | B Min | BB: 49.29 (+2.93s | 5.6%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 949 | Zachariah Sivaraj | 52.23 | 8 | B Min | BB: 49.29 (+2.94s | 5.6%) | Sawtooth Aquatic Club | 07/18/2025 | 2025 LCM Summer Championships | |
| 950 | Elliott Boland | 52.23 | 10 | B Min | BB: 49.29 (+2.94s | 5.6%) | Academy Swim Club | 05/16/2026 | BIG ISLAND SWIMMING @ KCAC | |
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.