Western Zone Zone Boys 10 & under - 50 M Free
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 | Calvin Butler | 42.18 | 9 | B Min | BB: 39.79 (+2.39s | 5.7%) | California Gold | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 852 | Bo Bamford | 42.18 | 9 | B Min | BB: 39.79 (+2.39s | 5.7%) | Portland Aquatic Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 853 | Matvii Medvediev | 42.20 | 9 | B Min | BB: 39.79 (+2.41s | 5.7%) | Tornadoes Swim Team | 08/01/2026 | 2026 GACC End Of Season | |
| 854 | Dashiell Wang | 42.23 | 10 | B Min | BB: 39.79 (+2.44s | 5.8%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 855 | Kyle Cheung | 42.25 | 10 | B Min | BB: 39.79 (+2.46s | 5.8%) | Palo Alto Stanford Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 856 | Cimon Bunuan | 42.25 | 9 | B Min | BB: 39.79 (+2.46s | 5.8%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | |
| 857 | Asher Gersick | 42.27 | 10 | B Min | BB: 39.79 (+2.48s | 5.9%) | Lamarlins Swim Team, Inc. | 06/05/2026 | 2026 CO La Junta Tigersharks Invitational | |
| 858 | Sebastian Monroy Reyes | 42.27 | 10 | B Min | BB: 39.79 (+2.48s | 5.9%) | Sunnyvale Swim Club | 06/06/2025 | 2025 DACA LC CBA+ Meet | |
| 859 | Boaz Mccabe | 42.28 | 9 | B Min | BB: 39.79 (+2.49s | 5.9%) | Cortez Water Dragons | 07/10/2026 | 2026 CO Western Slope League Championships | |
| 860 | Jun Lin | 42.29 | 8 | B Min | BB: 39.79 (+2.50s | 5.9%) | Seattle Metropolitan Aquatic C | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 861 | Jesper Zhang | 42.31 | 10 | B Min | BB: 39.79 (+2.52s | 6.0%) | Sandpipers of Nevada | 03/30/2025 | Sand Vs BCH LCM Dual 2025 | |
| 862 | Finn Rodrigues | 42.31 | 9 | B Min | BB: 39.79 (+2.52s | 6.0%) | Rainbow Aquatics | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 863 | Tristan Wan | 42.32 | 9 | B Min | BB: 39.79 (+2.53s | 6.0%) | Palo Alto Stanford Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 864 | Joseph Gordon | 42.33 | 10 | B Min | BB: 39.79 (+2.54s | 6.0%) | Unattached | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 865 | Carter Milroy | 42.34 | 10 | B Min | BB: 39.79 (+2.55s | 6.0%) | Foothills Swim Team | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 866 | Samuel Leineweber | 42.34 | 9 | B Min | BB: 39.79 (+2.55s | 6.0%) | Apex | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 867 | Sriram Goriparthi | 42.34 | 9 | B Min | BB: 39.79 (+2.55s | 6.0%) | Front Range Barracudas | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 868 | Brendan Stork | 42.35 | 10 | B Min | BB: 39.79 (+2.56s | 6.0%) | Clovis Swim Club | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 869 | Lukas Fort | 42.36 | 9 | B Min | BB: 39.79 (+2.57s | 6.1%) | Bainbridge Island Swim Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 870 | Austin Brower | 42.36 | 9 | B Min | BB: 39.79 (+2.57s | 6.1%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 871 | Luca Desset | 42.36 | 10 | B Min | BB: 39.79 (+2.57s | 6.1%) | Unattached | 06/20/2025 | 72nd Annual Ted Walker Invitational | |
| 872 | Anthony Pham | 42.36 | 10 | B Min | BB: 39.79 (+2.57s | 6.1%) | South Valley Makos | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 873 | Vaughn Jamison | 42.36 | 10 | B Min | BB: 39.79 (+2.57s | 6.1%) | Aspire Aquatics of Colorado | 05/15/2026 | 2026 CO ACES Spring Invite | |
| 874 | Apollo Van Brunt | 42.36 | 8 | B Min | BB: 39.79 (+2.57s | 6.1%) | Kona Aquatics Club | 05/16/2026 | BIG ISLAND SWIMMING @ KCAC | |
| 875 | James Carwin | 42.37 | 9 | B Min | BB: 39.79 (+2.58s | 6.1%) | Front Range Barracudas | 07/10/2026 | 2026 CO NCS Gold District Championships | |
| 876 | Calvin Littlejohn | 42.38 | 9 | B Min | BB: 39.79 (+2.59s | 6.1%) | Eugene City Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 877 | Ford Fisher | 42.39 | 9 | B Min | BB: 39.79 (+2.60s | 6.1%) | Univ. of Denver Hilltoppers | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 878 | Asher Amira | 42.40 | 10 | B Min | BB: 39.79 (+2.61s | 6.2%) | Chinook Aquatic Club | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 879 | Michael Sohn | 42.40 | 10 | B Min | BB: 39.79 (+2.61s | 6.2%) | Front Range Barracudas | 06/27/2026 | 2026 CO CUDA Summer Kicker | |
| 880 | Dylan Rapp | 42.43 | 9 | B Min | BB: 39.79 (+2.64s | 6.2%) | Front Range Barracudas | 05/23/2026 | 2026 CO CUDA Vs AQUA Dual | |
| 881 | Aaron Im | 42.44 | 9 | B Min | BB: 39.79 (+2.65s | 6.2%) | West Coast Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 882 | Aadyant Agrawal | 42.47 | 9 | B Min | BB: 39.79 (+2.68s | 6.3%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 883 | Weibo Gao | 42.48 | 10 | B Min | BB: 39.79 (+2.69s | 6.3%) | Pacific Dragons Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 884 | Will Wu | 42.49 | 10 | B Min | BB: 39.79 (+2.70s | 6.4%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 885 | Chase Clark | 42.53 | 10 | B Min | BB: 39.79 (+2.74s | 6.4%) | Issaquah Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 886 | Mason Somadi | 42.53 | 9 | B Min | BB: 39.79 (+2.74s | 6.4%) | Beaverton Area Aquatics Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 887 | Myles Clark | 42.55 | 10 | B Min | BB: 39.79 (+2.76s | 6.5%) | Kona Dolphins Swim Club | 05/16/2026 | BIG ISLAND SWIMMING @ KCAC | |
| 888 | Andrew Yang | 42.56 | 9 | B Min | BB: 39.79 (+2.77s | 6.5%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 889 | Owen Lee | 42.57 | 9 | B Min | BB: 39.79 (+2.78s | 6.5%) | Chinook Aquatic Club | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 890 | Wesley Tong | 42.57 | 10 | B Min | BB: 39.79 (+2.78s | 6.5%) | Front Range Barracudas | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 891 | Ishaan Talluri | 42.57 | 10 | B Min | BB: 39.79 (+2.78s | 6.5%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 892 | Brogan Clay | 42.57 | 10 | B Min | BB: 39.79 (+2.78s | 6.5%) | Mission Aurora Colorado Swimmi | 06/06/2026 | 2026 CO MACS Suburban League Invite | |
| 893 | Jack Kitch | 42.57 | 9 | B Min | BB: 39.79 (+2.78s | 6.5%) | Univ. of Denver Hilltoppers | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 894 | Owen Hamaker | 42.58 | 9 | B Min | BB: 39.79 (+2.79s | 6.6%) | Coeur D\\\\\\'alene Area Swim Team | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 895 | Abram Johnson | 42.59 | 10 | B Min | BB: 39.79 (+2.80s | 6.6%) | Seattle Metropolitan Aquatic C | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 896 | Anderson Fang | 42.60 | 8 | B Min | BB: 39.79 (+2.81s | 6.6%) | Reno Aquatic Club | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
| 897 | Grayson Bennett | 42.60 | 8 | B Min | BB: 39.79 (+2.81s | 6.6%) | Spokane Waves Aquatic Team | 04/17/2026 | 2026 Shark Attack Copied | |
| 898 | Otis Brown | 42.60 | 9 | B Min | BB: 39.79 (+2.81s | 6.6%) | Bainbridge Island Swim Club | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 899 | Sawyer Stephenson-Sabin | 42.61 | 10 | B Min | BB: 39.79 (+2.82s | 6.6%) | Napa Valley Swim Team | 06/27/2026 | NVST Summer Plunge 2026 | |
| 900 | Lucas Sun | 42.62 | 10 | B Min | BB: 39.79 (+2.83s | 6.6%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
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.