USA Boys 10 & under - 50 M Back
These rankings show the swimmers' placement within the United States.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 951 | Bruce Chou | 49.25 | 10 | BB Min | A: 43.09 (+6.16s | 12.5%) | Jbarracudas Swim Team | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 952 | Kawika Cox | 49.25 | 10 | BB Min | A: 43.09 (+6.16s | 12.5%) | Kamehameha Swim Club | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 953 | Liam Adrian | 49.25 | 9 | BB Min | A: 43.09 (+6.16s | 12.5%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 954 | Emmett Curry | 49.26 | 10 | BB Min | A: 43.09 (+6.17s | 12.5%) | Seattle Metropolitan Aquatic C | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 955 | Atharv Choubey | 49.26 | 9 | BB Min | A: 43.09 (+6.17s | 12.5%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 956 | Thomas Cooke | 49.27 | 9 | BB Min | A: 43.09 (+6.18s | 12.5%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 957 | Ryker Mahowald | 49.27 | 10 | BB Min | A: 43.09 (+6.18s | 12.5%) | Vermillion Area Swim Team | 06/20/2025 | VAST SPLASH | |
| 958 | John Asher | 49.28 | 10 | BB Min | A: 43.09 (+6.19s | 12.6%) | North Coast Aquatics | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 959 | Sebastian Brassfield | 49.29 | 10 | BB Min | A: 43.09 (+6.20s | 12.6%) | Alamo Heights Aquatic Club ? A | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
| 960 | Jayden Silveira | 49.30 | 10 | B Min | BB: 49.29 (+0.01s | 0.0%) | Fast Falcons | 05/15/2026 | 2026 FAST May Invite | |
| 961 | Sutton Hopelain | 49.30 | 10 | B Min | BB: 49.29 (+0.01s | 0.0%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 962 | Arthur Dodington | 49.31 | 9 | B Min | BB: 49.29 (+0.02s | 0.0%) | Edina Swim Club | 05/03/2026 | 2026 MN SEMS LC Invite | |
| 963 | Ramsey Lee | 49.31 | 9 | B Min | BB: 49.29 (+0.02s | 0.0%) | Sea Devils | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 964 | Winston McNabb | 49.32 | 8 | B Min | BB: 49.29 (+0.03s | 0.1%) | Riptide Swim Team | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 965 | Michael Ancona | 49.32 | 9 | B Min | BB: 49.29 (+0.03s | 0.1%) | Jupiter Dragons Swim Team | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 966 | Grayson King | 49.34 | 9 | B Min | BB: 49.29 (+0.05s | 0.1%) | Riptide Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 967 | Ross Davis | 49.34 | 8 | B Min | BB: 49.29 (+0.05s | 0.1%) | Fast Falcons | 05/15/2026 | 2026 FAST May Invite | |
| 968 | Zhencheng Xu | 49.35 | 10 | B Min | BB: 49.29 (+0.06s | 0.1%) | Alto Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 969 | Gaston White | 49.36 | 9 | B Min | BB: 49.29 (+0.07s | 0.1%) | Swim Tampa Aquatics | 04/11/2026 | 2026 Stingrays Early LCM Season Opener | |
| 970 | Cameron Roberts | 49.36 | 8 | B Min | BB: 49.29 (+0.07s | 0.1%) | Sailfish | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 971 | Charlie Wang | 49.39 | 9 | B Min | BB: 49.29 (+0.10s | 0.2%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 972 | Russell Wagner | 49.41 | 9 | B Min | BB: 49.29 (+0.12s | 0.2%) | Planet Swim Aquatics | 05/16/2026 | 2026 PSA May Invite | |
| 973 | Oliver Ryan | 49.42 | 10 | B Min | BB: 49.29 (+0.13s | 0.3%) | San Gabriel Aquatics | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 974 | Brock Hawrylak | 49.44 | 10 | B Min | BB: 49.29 (+0.15s | 0.3%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 975 | Shane Kirk | 49.45 | 8 | B Min | BB: 49.29 (+0.16s | 0.3%) | Bolles School Sharks | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 976 | Luke Cheng | 49.45 | 10 | B Min | BB: 49.29 (+0.16s | 0.3%) | Otter Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 977 | Milo Gordon | 49.45 | 8 | B Min | BB: 49.29 (+0.16s | 0.3%) | Flatiron Athletic Club | 06/06/2025 | 2025 CO NJ Summer Solstice Invitational | |
| 978 | Benjamin Bridgers | 49.47 | 9 | B Min | BB: 49.29 (+0.18s | 0.4%) | Episcopal AmberJax | 03/28/2026 | EAJ Spring Into Long Course 2026 | |
| 979 | Isaac Engelbart | 49.49 | 10 | B Min | BB: 49.29 (+0.20s | 0.4%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 980 | Gavin Lowe | 49.49 | 5 | B Min | BB: 49.29 (+0.20s | 0.4%) | Tri Valley Aquatics | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 981 | Marcus Wang | 49.50 | 10 | B Min | BB: 49.29 (+0.21s | 0.4%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 982 | Brendan Gao | 49.50 | 10 | B Min | BB: 49.29 (+0.21s | 0.4%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 983 | Robert Gentry | 49.51 | 10 | B Min | BB: 49.29 (+0.22s | 0.4%) | Hill Country Aquatics | 04/11/2026 | 2026 ST HCA Spring On The Hill Intrasquad | |
| 984 | Barrett Zubke | 49.51 | 9 | B Min | BB: 49.29 (+0.22s | 0.4%) | Sarasota Sharks | 06/19/2025 | 2025 Shark Open | |
| 985 | Bentley Frost | 49.52 | 10 | B Min | BB: 49.29 (+0.23s | 0.5%) | Pierre Swim Team | 07/19/2024 | 2024 South Dakota Long Course State A | |
| 986 | Zane Seifel | 49.52 | 10 | B Min | BB: 49.29 (+0.23s | 0.5%) | Treasure Coast Aquatics | 05/02/2026 | TCSC Go For The Gold Invitational | |
| 987 | Zachary DeLozier | 49.52 | 9 | B Min | BB: 49.29 (+0.23s | 0.5%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 988 | Marcelo Valdez Salda'a | 49.53 | 7 | B Min | BB: 49.29 (+0.24s | 0.5%) | Municipio DE San Pedro | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 989 | Isaiah Fadillah | 49.54 | 10 | B Min | BB: 49.29 (+0.25s | 0.5%) | California Dolphins Swim Team | 05/02/2026 | Alto Spring Jam CBA | |
| 990 | Lane Markham | 49.54 | 9 | B Min | BB: 49.29 (+0.25s | 0.5%) | Minnetonka Swim Club | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 991 | John Griswold | 49.56 | 10 | B Min | BB: 49.29 (+0.27s | 0.5%) | Alameda Gators | 06/20/2025 | Zone 2 Last Chance To AG Champs | |
| 992 | Adam Sherman | 49.56 | 10 | B Min | BB: 49.29 (+0.27s | 0.5%) | Lakewood Ranch Swim Associatio | 06/19/2025 | 2025 Shark Open | |
| 993 | Luke Atanasov | 49.57 | 8 | B Min | BB: 49.29 (+0.28s | 0.6%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 994 | Luke Xu | 49.58 | 10 | B Min | BB: 49.29 (+0.29s | 0.6%) | California Dolphins Swim Team | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 995 | Eli Kerley | 49.58 | 10 | B Min | BB: 49.29 (+0.29s | 0.6%) | Treasure Coast Swimming | 05/02/2026 | TCSC Go For The Gold Invitational | |
| 996 | Cosmo McGrath | 49.58 | 10 | B Min | BB: 49.29 (+0.29s | 0.6%) | Bellingham Bay Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 997 | Leo Ioffe | 49.58 | 9 | B Min | BB: 49.29 (+0.29s | 0.6%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 998 | Jaden Feng | 49.60 | 7 | B Min | BB: 49.29 (+0.31s | 0.6%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 999 | Carter Trauth | 49.61 | 9 | B Min | BB: 49.29 (+0.32s | 0.6%) | SlipStream Aquatics | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 1000 | Jack Griego | 49.62 | 9 | B Min | BB: 49.29 (+0.33s | 0.7%) | Waterloo Swimming | 06/22/2025 | 2025 ST WLOO LC Last Chance | |
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.