USA Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 851 | David Staperfenne | 42.91 | 10 | BB Min | A: 42.09 (+0.82s | 1.9%) | Grosse Pointe Gators | 02/28/2026 | 2026 Last Chance Meet | |
| 852 | Graham Terzer | 42.92 | 9 | BB Min | A: 42.09 (+0.83s | 1.9%) | The Spartans of La Canada | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 853 | Luke Dimick | 42.93 | 10 | BB Min | A: 42.09 (+0.84s | 2.0%) | Auburn Aquatics | 01/16/2026 | 2026 SE Ralph Crocker Classic | |
| 854 | Timofey Ryazanov | 42.93 | 10 | BB Min | A: 42.09 (+0.84s | 2.0%) | Csp Tideriders | 02/27/2026 | Ozark Division I Championship | |
| 855 | Asher Josey | 42.93 | 10 | BB Min | A: 42.09 (+0.84s | 2.0%) | Nation\\\\\\'s Capital Swim Club | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 856 | Titus Kirsch | 42.94 | 10 | BB Min | A: 42.09 (+0.85s | 2.0%) | Summerville Family YMCA | 03/19/2026 | 2026 USRY Short Course Champs | |
| 857 | Santiago Diaz | 42.94 | 9 | BB Min | A: 42.09 (+0.85s | 2.0%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 858 | Leo Maia | 42.95 | 10 | BB Min | A: 42.09 (+0.86s | 2.0%) | Swim Coral Springs | 02/20/2026 | 2026 FG SCY BB Championships (NORTH) | |
| 859 | Jacob Royzman | 42.95 | 10 | BB Min | A: 42.09 (+0.86s | 2.0%) | Empire Swimming | 02/20/2026 | 2026 MR Silvers North Championship YMID | |
| 860 | Stewart Bye | 42.96 | 10 | BB Min | A: 42.09 (+0.87s | 2.0%) | Corvallis Aquatic Team | 12/12/2025 | 2025 OR HEAT Age Group Jubilee | |
| 861 | Asher Young | 42.96 | 10 | BB Min | A: 42.09 (+0.87s | 2.0%) | Terrapins Swim Team | 03/20/2026 | SCY Spring Age Group Championships | |
| 862 | Brady Brayer | 42.97 | 10 | BB Min | A: 42.09 (+0.88s | 2.0%) | Liberty Township/ Powell YMCA | 03/12/2026 | 2026 OH SC Junior Championships | |
| 863 | James Mayo | 42.97 | 10 | BB Min | A: 42.09 (+0.88s | 2.0%) | Gulf Coast Swim Team | 03/05/2026 | 2026 Florida Swimming FLAGS SOUTH | |
| 864 | Nikoloz Zhorzholiani | 42.97 | 9 | BB Min | A: 42.09 (+0.88s | 2.0%) | Seattle Metropolitan Aquatic C | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 865 | David Shoer | 42.98 | 10 | BB Min | A: 42.09 (+0.89s | 2.1%) | Patriot Aquatics | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 866 | Max Wan | 42.98 | 10 | BB Min | A: 42.09 (+0.89s | 2.1%) | Highlander Aquatic Club | 03/05/2026 | 2026 Florida Swimming FLAGS NORTH | |
| 867 | Matias Hosein | 42.99 | 10 | BB Min | A: 42.09 (+0.90s | 2.1%) | Gulliver Swim Club | 02/20/2026 | 2026 FG SCY BB Championships SOUTH | |
| 868 | Niam Gettings | 42.99 | 10 | BB Min | A: 42.09 (+0.90s | 2.1%) | North Carolina Aquatic Club | 03/26/2026 | 2026 NCAC Spring Tar Heel States Copied | |
| 869 | William Cravens | 42.99 | 10 | BB Min | A: 42.09 (+0.90s | 2.1%) | York Swim Club of Northern Vir | 03/20/2026 | March Madness 2026 | |
| 870 | Michael Campbell | 42.99 | 9 | BB Min | A: 42.09 (+0.90s | 2.1%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 02/27/2026 | 2026 Junior Cup | |
| 871 | Frederick Jackson | 42.99 | 10 | BB Min | A: 42.09 (+0.90s | 2.1%) | Royal Swimming | 01/31/2026 | 2026 Guppy Bowl | |
| 872 | Lyrik Atwater | 43.00 | 10 | BB Min | A: 42.09 (+0.91s | 2.1%) | Granite Falls Makos | 01/16/2026 | 2026 Vector Security Polar Plunge Meet | |
| 873 | Ryan Bascon | 43.00 | 10 | BB Min | A: 42.09 (+0.91s | 2.1%) | Team Suffolk | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 874 | Dalton Gonzalez | 43.01 | 9 | BB Min | A: 42.09 (+0.92s | 2.1%) | Nitro Swimming | 01/04/2026 | 2026 ST NTRO Chilly Icicles | |
| 875 | Kaimana Hashimoto | 43.01 | 10 | BB Min | A: 42.09 (+0.92s | 2.1%) | Splash Aquatics | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 876 | Noah Beimesche | 43.01 | 9 | BB Min | A: 42.09 (+0.92s | 2.1%) | Cincinnati Marlins | 03/12/2026 | 2026 OH SC Junior Championships | |
| 877 | Henry Hales | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | Commonwealth Swimming | 03/13/2026 | 2026 NE INST NE Cup | |
| 878 | Yu Xu | 43.03 | 9 | BB Min | A: 42.09 (+0.94s | 2.2%) | SwimMAC Carolina | 12/05/2025 | ATOM Winter Invite 2025 | |
| 879 | Gabriel Moyer | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | Southern Maryland Aquatics | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 880 | Preston Tran | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | Irvine Novaquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 881 | Ashton Chen | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | Brea Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 882 | Logan Yip | 43.03 | 10 | BB Min | A: 42.09 (+0.94s | 2.2%) | South San Francisco Aquatics | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 883 | George Couchara | 43.04 | 9 | BB Min | A: 42.09 (+0.95s | 2.2%) | Hydra Aquatics | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 884 | Jacob Tilman | 43.04 | 10 | BB Min | A: 42.09 (+0.95s | 2.2%) | Newport County YMCA Wahoos | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 885 | Thomas Nicely | 43.04 | 10 | BB Min | A: 42.09 (+0.95s | 2.2%) | Spartan Aquatic Club | 01/16/2026 | 2026 SE Ralph Crocker Classic | |
| 886 | Connor Kelly | 43.04 | 10 | BB Min | A: 42.09 (+0.95s | 2.2%) | Condors Swim Club | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 887 | Duke Guo | 43.06 | 9 | BB Min | A: 42.09 (+0.97s | 2.3%) | McAllen Swim Club | 01/03/2026 | 2026 ST HPAC Last Chance Quaifier | |
| 888 | Levi Palmer | 43.06 | 10 | BB Min | A: 42.09 (+0.97s | 2.3%) | Nocatee Bluetide Swim Team | 03/01/2026 | 2026 Last Chance Meet | |
| 889 | Liam Sandstrom | 43.06 | 8 | BB Min | A: 42.09 (+0.97s | 2.3%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 890 | Matias Cardona | 43.07 | 10 | BB Min | A: 42.09 (+0.98s | 2.3%) | SwimFast | 11/01/2025 | Piranhas Turkey Classic 2025 | |
| 891 | Gavin Yin | 43.07 | 10 | BB Min | A: 42.09 (+0.98s | 2.3%) | Austin Swim Club | 10/10/2025 | 2025 ST ASC Bob Thompson Open | |
| 892 | Jameson Levering | 43.09 | 10 | BB Min | A: 42.09 (+1.00s | 2.3%) | Crimson Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 893 | Luke VanWoerkom | 43.10 | 10 | BB Min | A: 42.09 (+1.01s | 2.3%) | Byron Center Aquatics | 02/07/2026 | 2026 Grand Rapids Open | |
| 894 | Kristian Efimov | 43.10 | 10 | BB Min | A: 42.09 (+1.01s | 2.3%) | Bravo Swim Team | 02/20/2026 | 2026 FG SCY BB Championships SOUTH | |
| 895 | Theodore George | 43.10 | 10 | BB Min | A: 42.09 (+1.01s | 2.3%) | Tollefson Swimming | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 896 | Benjamin Danon | 43.11 | 10 | BB Min | A: 42.09 (+1.02s | 2.4%) | 92ny Flying Dolphins | 12/11/2025 | 2025 NE CRA Winter Invitational | |
| 897 | Joshua Margolius | 43.11 | 9 | BB Min | A: 42.09 (+1.02s | 2.4%) | Rivertown Aquatics | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 898 | James DeKlotz | 43.11 | 9 | BB Min | A: 42.09 (+1.02s | 2.4%) | Nation\\\\\\'s Capital Swim Club | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 899 | Kazuhiro Seto | 43.11 | 10 | BB Min | A: 42.09 (+1.02s | 2.4%) | Hauppauge Swimming | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 900 | Aidan Campbell | 43.12 | 9 | BB Min | A: 42.09 (+1.03s | 2.4%) | Loyola Blakefield Aquatics | 03/05/2026 | 2026 MD LSC 14 U Championships | |
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.