USA Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 3801 | Mario Li | 44.52 | 8 | B Min | BB: 42.89 (+1.63s | 3.7%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 3802 | Maximus Johnson | 44.52 | 9 | B Min | BB: 42.89 (+1.63s | 3.7%) | Bolles School Sharks | 02/20/2026 | 2026 Area 1 Spring Championships | |
| 3803 | John Overmyer | 44.52 | 9 | B Min | BB: 42.89 (+1.63s | 3.7%) | Westchester Aquatic Club | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 3804 | Jey Ram | 44.52 | 9 | B Min | BB: 42.89 (+1.63s | 3.7%) | Nation\\\\\\'s Capital Swim Club | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 3805 | Diego Yanez | 44.52 | 10 | B Min | BB: 42.89 (+1.63s | 3.7%) | El Paso Aqua Posse | 02/13/2026 | 2026 BD Arctic BLAST Swim Meet | |
| 3806 | Ryan Hamby | 44.52 | 9 | B Min | BB: 42.89 (+1.63s | 3.7%) | Palo Alto Stanford Aquatics | 11/23/2024 | 2024 PASA Candy Meet Champs | |
| 3807 | Wyatt DeCino | 44.53 | 9 | B Min | BB: 42.89 (+1.64s | 3.7%) | Loveland Swim Club | 02/14/2026 | 2026 CO NCS 10 U Winter Spectacular | |
| 3808 | Caleb Pan | 44.53 | 10 | B Min | BB: 42.89 (+1.64s | 3.7%) | West Coast Aquatics | 09/27/2025 | 2025 PN IST Sockeye Sprints | |
| 3809 | Daniel Comport | 44.54 | 10 | B Min | BB: 42.89 (+1.65s | 3.7%) | Highbridge Aquatics | 12/05/2025 | 2025 Holiday Classic | |
| 3810 | Marcus England | 44.54 | 10 | B Min | BB: 42.89 (+1.65s | 3.7%) | Sawtooth Aquatic Club | 12/20/2025 | 2025 BY Candy Cane Invitational | |
| 3811 | Micah Shepherd | 44.54 | 10 | B Min | BB: 42.89 (+1.65s | 3.7%) | WeAquatics | 03/21/2026 | 2026 MAKO SPRING FLING | |
| 3812 | Carter Van Dormolen | 44.54 | 10 | B Min | BB: 42.89 (+1.65s | 3.7%) | Hauppauge Swimming | 12/11/2025 | 2025 MR HAUP Eagle Invitational | |
| 3813 | Gavin Johnston | 44.54 | 9 | B Min | BB: 42.89 (+1.65s | 3.7%) | Manta Ray Aquatics | 02/21/2026 | 2026 SI MRA Age Group Champs Max Meet | |
| 3814 | Ziyi Yang | 44.54 | 9 | B Min | BB: 42.89 (+1.65s | 3.7%) | Shawmut Aquatic Club | 03/13/2026 | 2026 Shawmut NE Cup Championship | |
| 3815 | Henry Ims | 44.55 | 10 | B Min | BB: 42.89 (+1.66s | 3.7%) | Cincinnati Aquatic Club | 02/19/2026 | 2026 OH CM SC Regional Championships | |
| 3816 | Justin Zhao | 44.55 | 10 | B Min | BB: 42.89 (+1.66s | 3.7%) | Aquaracers Swim Club | 09/27/2025 | 2025 MR FREE Season Starter | |
| 3817 | Jude Notter | 44.55 | 9 | B Min | BB: 42.89 (+1.66s | 3.7%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 3818 | Sebastian Siebert Restrepo | 44.55 | 10 | B Min | BB: 42.89 (+1.66s | 3.7%) | Clearwater Aquatic Team | 01/30/2026 | 2026 FAST February Helping Hands Invite | |
| 3819 | Caden O'Hagan | 44.55 | 9 | B Min | BB: 42.89 (+1.66s | 3.7%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | |
| 3820 | Aren Citak | 44.55 | 9 | B Min | BB: 42.89 (+1.66s | 3.7%) | Sarasota Sharks | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 3821 | Cooper Shook | 44.56 | 9 | B Min | BB: 42.89 (+1.67s | 3.7%) | SwimRVA | 11/22/2025 | Bass Turkey Classic 2025 | |
| 3822 | Lane Markham | 44.57 | 9 | B Min | BB: 42.89 (+1.68s | 3.8%) | Minnetonka Swim Club | 02/27/2026 | 2026 MN MTKA Minnesota Regional Championship | |
| 3823 | Jeffrey Xin | 44.57 | 8 | B Min | BB: 42.89 (+1.68s | 3.8%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 3824 | Bryan LI | 44.57 | 8 | B Min | BB: 42.89 (+1.68s | 3.8%) | Twisters Swim Club | 01/24/2026 | 2026 MR FLY Fran Schnarr Sprint Pentathlon Me | |
| 3825 | Archer Sytsma | 44.57 | 10 | B Min | BB: 42.89 (+1.68s | 3.8%) | Univ. of Denver Hilltoppers | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 3826 | Jack Griego | 44.57 | 9 | B Min | BB: 42.89 (+1.68s | 3.8%) | Waterloo Swimming | 12/05/2025 | 2025 ST LSAC 5th Annual Graceland | |
| 3827 | Tyler Groth | 44.57 | 10 | B Min | BB: 42.89 (+1.68s | 3.8%) | Atlantis Swimming | 10/17/2025 | 2025 OLY Fall Classic | |
| 3828 | Gordon Song | 44.57 | 9 | B Min | BB: 42.89 (+1.68s | 3.8%) | Arctic Aquatics | 05/01/2026 | 2026 NE ARCT Spring Specialty Meet | |
| 3829 | Dudu Du | 44.57 | 10 | B Min | BB: 42.89 (+1.68s | 3.8%) | Pacific Dragons Swim Team | 01/25/2025 | 2025 PN PDST Winter Invitational | |
| 3830 | Oliver Song | 44.58 | 10 | B Min | BB: 42.89 (+1.69s | 3.8%) | H2okie Aquatics | 11/07/2025 | 2025 HOKI November Invitational Copied | |
| 3831 | Santiago Diaz | 44.58 | 9 | B Min | BB: 42.89 (+1.69s | 3.8%) | Rockville Montgomery Swim Club | 01/16/2026 | 2026 RMSC January Intrasquad Meet | |
| 3832 | Edward Strok | 44.58 | 8 | B Min | BB: 42.89 (+1.69s | 3.8%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 3833 | Oleksandr Aleksashyn | 44.58 | 10 | B Min | BB: 42.89 (+1.69s | 3.8%) | Dolphin Club | 12/05/2025 | NOVA December Dip | |
| 3834 | Ryan Hu | 44.59 | 8 | B Min | BB: 42.89 (+1.70s | 3.8%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 3835 | Vincent Stallings | 44.59 | 10 | B Min | BB: 42.89 (+1.70s | 3.8%) | Lifetime Swim Team North Carol | 12/19/2025 | 2025 TAC TITANS Jingle Bells Meet | |
| 3836 | Owen Cook | 44.59 | 9 | B Min | BB: 42.89 (+1.70s | 3.8%) | South Central Swimming | 02/07/2026 | 2026 Grand Rapids Open | |
| 3837 | Cooper Francis | 44.59 | 9 | B Min | BB: 42.89 (+1.70s | 3.8%) | Nova of Virginia | 11/22/2025 | NOVA Cranberry Contender | |
| 3838 | Ethan Shindelman | 44.59 | 8 | B Min | BB: 42.89 (+1.70s | 3.8%) | Sussex County YMCA | 10/25/2025 | 2025 MR MWDA YBAR Heats And Treats | |
| 3839 | Beau Connelly | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Los Gatos Swim Club | 02/08/2025 | Swim South Bay | |
| 3840 | Damon Sparling | 44.60 | 9 | B Min | BB: 42.89 (+1.71s | 3.8%) | Edina Swim Club | 02/27/2026 | 2026 MN EDI Minnesota Regional Championship | |
| 3841 | Benjamin Maltz | 44.60 | 9 | B Min | BB: 42.89 (+1.71s | 3.8%) | Club Wolverine | 03/07/2026 | 2026 Lake Ontario Regional Meet | |
| 3842 | Patrick McAuliff | 44.60 | 7 | B Min | BB: 42.89 (+1.71s | 3.8%) | Edina Swim Club | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 3843 | Logan Vuong | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Life Time Fitness New York Swi | 03/27/2026 | 2026 MR Bronze Championships Central KBM | |
| 3844 | Octavio Bejarano Barraza | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Centro Acuatico Universitario | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 3845 | Reece Donaldson | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Stingray Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | |
| 3846 | Benjamin Justus | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Greater Tampa Swim Association | 02/06/2026 | CVST Sweetheart Meet | |
| 3847 | Killian Adams | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Stingray Swim Team | 09/27/2025 | 2025 PN IST Sockeye Sprints | |
| 3848 | Sammy Tampubolon | 44.60 | 8 | B Min | BB: 42.89 (+1.71s | 3.8%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | |
| 3849 | William Frohnen | 44.61 | 9 | B Min | BB: 42.89 (+1.72s | 3.9%) | San Ramon Valley Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 3850 | Carter Nevitt | 44.61 | 9 | B Min | BB: 42.89 (+1.72s | 3.9%) | Catawba Valley Aquatic Club | 03/20/2026 | 2026 BRSL 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.