USA Boys 10 & under - 50 Y Free
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1001 | Lachlan Swanborough | 30.95 | 10 | A Min | AA: 29.89 (+1.06s | 3.4%) | Central | 02/15/2025 | 2025 OR HS 5a 3 | |
| 1002 | Muyang He | 30.95 | 9 | A Min | AA: 29.89 (+1.06s | 3.4%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 1003 | Bosco Sung | 30.95 | 5 | A Min | AA: 29.89 (+1.06s | 3.4%) | Soda Fall | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 1004 | Zhizhe Zheng | 30.97 | 10 | A Min | AA: 29.89 (+1.08s | 3.5%) | Crimson Aquatics | 10/17/2025 | 2025 NE CRIM OCTOBER TEAM SPECIALTY W DIST | |
| 1005 | Gavin Jackson | 30.97 | 9 | A Min | AA: 29.89 (+1.08s | 3.5%) | Crater | 02/12/2026 | 2026 OR HS 5A 2 | |
| 1006 | Atticus Moreno | 30.97 | 10 | A Min | AA: 29.89 (+1.08s | 3.5%) | CAPITAL HIGH SCHOOL | 01/10/2026 | 2026 Kentridge High School Invitational Obse | |
| 1007 | Isaiah Isreal | 30.97 | 9 | A Min | AA: 29.89 (+1.08s | 3.5%) | New Albany Aquatic Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1008 | Ben Ton | 30.98 | 9 | A Min | AA: 29.89 (+1.09s | 3.5%) | Kamiak | 01/10/2026 | 2026 Kentridge High School Invitational Obse | |
| 1009 | Noah Chen | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | Blue Wave Swim Team PV | 01/31/2026 | The 2026 Super FISH Bowl XVI | |
| 1010 | Caleb Rlley | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | Cottage Grove | 02/14/2025 | 2025 OR HS 4a 2 | |
| 1011 | Lucas Li | 30.98 | 9 | A Min | AA: 29.89 (+1.09s | 3.5%) | Arctic Aquatics | 10/04/2025 | 2025 NE CS Fall Sprints Copied | |
| 1012 | Theodore Chan | 30.98 | 9 | A Min | AA: 29.89 (+1.09s | 3.5%) | Long Island Express | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1013 | Adam Ma | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | California Dolphins Swim Team | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 1014 | David Xiong | 30.98 | 8 | A Min | AA: 29.89 (+1.09s | 3.5%) | Arctic Aquatics | 05/01/2026 | 2026 NE ARCT Spring Specialty Meet | |
| 1015 | Owen Eckhardt | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | Anglerfish Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1016 | Reid Kelly | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | Front Range Barracudas | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 1017 | Jackson Lee | 30.99 | 10 | A Min | AA: 29.89 (+1.10s | 3.5%) | Burlingame Aquatics | 03/28/2026 | PSL March CBA+ | |
| 1018 | Matthew Dedov | 31.00 | 10 | A Min | AA: 29.89 (+1.11s | 3.6%) | Central Bucks Swim Team | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1019 | Merrick Harner | 31.00 | 10 | A Min | AA: 29.89 (+1.11s | 3.6%) | Brevard Swim Club | 06/26/2026 | 2026 Summer Area 6 Champs | |
| 1020 | Seth Snyder | 31.01 | 10 | A Min | AA: 29.89 (+1.12s | 3.6%) | Lynchburg YMCA Swim Team | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 1021 | Christopher Magness | 31.01 | 10 | A Min | AA: 29.89 (+1.12s | 3.6%) | Nation\\\\\\'s Capital Swim Club | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1022 | Henry Bresson | 31.01 | 10 | A Min | AA: 29.89 (+1.12s | 3.6%) | Chinook Aquatic Club | 02/27/2026 | 2026 PN February AGI, Division 2 Approved | |
| 1023 | Owen Nguyen | 31.01 | 10 | A Min | AA: 29.89 (+1.12s | 3.6%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 1024 | Jakob Frisbie | 31.02 | 10 | A Min | AA: 29.89 (+1.13s | 3.6%) | Mariner | 02/12/2025 | 2025 Northwest District 1 4A Boys HS Champs | |
| 1025 | Anders Hammond | 31.02 | 10 | A Min | AA: 29.89 (+1.13s | 3.6%) | Riptide Swim Team | 01/16/2026 | 2026 CO CUDA Classic | |
| 1026 | Henry Lampley | 31.02 | 9 | A Min | AA: 29.89 (+1.13s | 3.6%) | YMCA of Florida\\\\\\'s First Coast | 06/26/2026 | 2026 SwimRise Season Finale | |
| 1027 | Aksh Gupta | 31.02 | 10 | A Min | AA: 29.89 (+1.13s | 3.6%) | Los Gatos | 04/22/2026 | 2026 SCVAL De Anza Division Championship Meet | |
| 1028 | Allen Chen | 31.03 | 10 | A Min | AA: 29.89 (+1.14s | 3.7%) | Seattle Metropolitan Aquatic C | 02/13/2026 | 2026 PN UPAC 4th Annual Feb Fly In Approved | |
| 1029 | Elliott Lesnau | 31.03 | 10 | A Min | AA: 29.89 (+1.14s | 3.7%) | Plymouth Canton Cruisers | 02/13/2026 | 2026 Showdown In Motown | |
| 1030 | Tatsumasa Sekine | 31.03 | 9 | A Min | AA: 29.89 (+1.14s | 3.7%) | Santa Clara Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 1031 | Carson Hereth | 31.04 | 10 | A Min | AA: 29.89 (+1.15s | 3.7%) | Selah | 01/11/2025 | 2025 Kentridge HS Invitational BOYS OBSERVED | |
| 1032 | Austin Ren | 31.04 | 9 | A Min | AA: 29.89 (+1.15s | 3.7%) | Katy Aquatic Team For Youth | 01/31/2025 | 2025 Fleet Mardi Gras | |
| 1033 | Wesley Ho | 31.04 | 10 | A Min | AA: 29.89 (+1.15s | 3.7%) | Aspire Aquatics of Colorado | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 1034 | Cohen Gray | 31.04 | 10 | A Min | AA: 29.89 (+1.15s | 3.7%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 1035 | Arthur Shackelton | 31.04 | 10 | A Min | AA: 29.89 (+1.15s | 3.7%) | Zone 4 Challenge Team | 04/26/2026 | 2026 Pacific Swimming Zone All Star Meet | |
| 1036 | Aiden Noll | 31.04 | 10 | A Min | AA: 29.89 (+1.15s | 3.7%) | Sachem Swim Club | 01/30/2026 | 2026 MR SSC Polar Bear Plunge | |
| 1037 | Jared Ivory | 31.05 | 9 | A Min | AA: 29.89 (+1.16s | 3.7%) | Ashland | 02/12/2026 | 2026 OR HS 5A 2 | |
| 1038 | Matthew Winn | 31.05 | 9 | A Min | AA: 29.89 (+1.16s | 3.7%) | Stingray Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 1039 | Connor Welch | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Sleepy Hollow | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 1040 | William Yiengst | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Machine Aquatics | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1041 | Ozzy Su | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 1042 | Carson Yin | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Tualatin Hills Swim Club | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 1043 | Tanmay Makupali | 31.08 | 9 | A Min | AA: 29.89 (+1.19s | 3.8%) | South Lyon | 02/27/2026 | 2026 LVC Championship | |
| 1044 | Camden Kern | 31.08 | 10 | A Min | AA: 29.89 (+1.19s | 3.8%) | Cavalier Aquatics/Piedmont Fam | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 1045 | Ethan Nicholes | 31.09 | 10 | A Min | AA: 29.89 (+1.20s | 3.9%) | Naval Academy Aquatic Club | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 1046 | Jonathan Cohen | 31.09 | 11 | A Min | AA: 29.89 (+1.20s | 3.9%) | Palm Beach Central High School | 09/20/2025 | 20th Annual September Splash | |
| 1047 | Olin Beerens | 31.09 | 10 | A Min | AA: 29.89 (+1.20s | 3.9%) | Longhorn Aquatics | 02/20/2026 | 2026 ST AAAA SC STAGS | |
| 1048 | Liam Woodman | 31.09 | 9 | A Min | AA: 29.89 (+1.20s | 3.9%) | Walled Lake Central | 02/27/2026 | 2026 LVC Championship | |
| 1049 | Connor Woo | 31.10 | 10 | B Min | BB: 30.49 (+0.61s | 2.0%) | Rockville Montgomery Swim Club | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 1050 | Samuel Fuerstneau | 31.10 | 10 | BB Min | A: 31.09 (+0.01s | 0.0%) | Edina Swim Club | 02/13/2026 | 2026 MN RSC President S Day Meet | |
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.