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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4001 | Austin Zhou | 45.37 | 10 | B Min | BB: 42.89 (+2.48s | 5.5%) | Pacific Dragons Swim Team | 02/27/2026 | 2026 PN February AGI, Division 2 Approved | |
| 4002 | Eli Wu | 45.37 | 10 | B Min | BB: 42.89 (+2.48s | 5.5%) | South San Francisco Aquatics | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 4003 | Sunkyun Kim | 45.37 | 10 | B Min | BB: 42.89 (+2.48s | 5.5%) | Punahou Aquatics Institute | 10/02/2026 | 2026 HI Al Minn Invitational | |
| 4004 | Vihaan Kondakindi | 45.37 | 9 | B Min | BB: 42.89 (+2.48s | 5.5%) | Mason Manta Rays | 02/19/2026 | 2026 OH RAYS SC Regional Championships | |
| 4005 | Thomas Hinds | 45.38 | 9 | B Min | BB: 42.89 (+2.49s | 5.5%) | Naval Academy Aquatic Club | 01/17/2026 | 2026 Duck Bowl | |
| 4006 | Joshua Ng | 45.38 | 9 | B Min | BB: 42.89 (+2.49s | 5.5%) | Long Island Aquatic Club | 03/27/2026 | 2026 MR Bronze Championship South LIE | |
| 4007 | Beau Johnson | 45.38 | 10 | B Min | BB: 42.89 (+2.49s | 5.5%) | Swimchester Sailfish | 09/26/2026 | 2026 Swimchester Sailfish Intrasquad Meet | |
| 4008 | Landon Scheid | 45.39 | 8 | B Min | BB: 42.89 (+2.50s | 5.5%) | Chelsea Aquatic Club | 03/07/2026 | 2026 Lake Ontario Regional Meet | |
| 4009 | Fletcher Lose | 45.39 | 9 | B Min | BB: 42.89 (+2.50s | 5.5%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | |
| 4010 | Owen Schoggin | 45.39 | 10 | B Min | BB: 42.89 (+2.50s | 5.5%) | Alamo Area Aquatic Association | 11/22/2025 | 2025 Harvest Hustle | |
| 4011 | Liam Nye | 45.39 | 10 | B Min | BB: 42.89 (+2.50s | 5.5%) | Sporting Jax Aquatic Club | 10/25/2025 | 2025 SJAC Halloween Invitational | |
| 4012 | Hunter Catrambone | 45.39 | 8 | B Min | BB: 42.89 (+2.50s | 5.5%) | Quest Swimming | 03/21/2026 | Quest Swimming March Madness Intrasquad Mee | |
| 4013 | Thomas Bello | 45.39 | 9 | B Min | BB: 42.89 (+2.50s | 5.5%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 4014 | Leon Lv | 45.39 | 9 | B Min | BB: 42.89 (+2.50s | 5.5%) | Mecklenburg Swim Association | 03/07/2026 | 2026 MSA March Madness Invitational | |
| 4015 | Beckett Van Sciver | 45.40 | 10 | B Min | BB: 42.89 (+2.51s | 5.5%) | Manhattan Makos | 03/27/2026 | 2026 MR Bronze Championships Central KBM | |
| 4016 | Trent Statzer | 45.40 | 10 | B Min | BB: 42.89 (+2.51s | 5.5%) | Sea Dragon Aquatics | 03/26/2026 | Destination Athlete Centennial Invite 2026 | |
| 4017 | Camden Evenson | 45.40 | 10 | B Min | BB: 42.89 (+2.51s | 5.5%) | Aberdeen Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 4018 | Tanner Sheeran | 45.40 | 8 | B Min | BB: 42.89 (+2.51s | 5.5%) | Cavalier Aquatics/Piedmont Fam | 10/03/2025 | CA Y Fall Kick Off 2025 | |
| 4019 | Braden Norris | 45.40 | 9 | B Min | BB: 42.89 (+2.51s | 5.5%) | Covington Aquatics Swim Team | 09/12/2026 | 2026 BSL SE Sprint Into Fall | |
| 4020 | Grayson Maglich | 45.40 | 8 | B Min | BB: 42.89 (+2.51s | 5.5%) | Sarasota Sharks | 09/18/2026 | 2026 Sharks IMX Challenge | |
| 4021 | Michael Kavanagh | 45.40 | 9 | B Min | BB: 42.89 (+2.51s | 5.5%) | California Capital Aquatics | 09/26/2026 | 2026 CCA Spook Tacular | |
| 4022 | Jaechul Jung | 45.40 | 10 | B Min | BB: 42.89 (+2.51s | 5.5%) | Palo Alto Stanford Aquatics | 10/24/2026 | SUNN Fall Classic 2026 | |
| 4023 | Henry Richardson-Bryson | 45.41 | 9 | B Min | BB: 42.89 (+2.52s | 5.5%) | Low Country Aquatic Club | 10/10/2025 | 2025 FAST Pumpkin Plunge | |
| 4024 | Daniel Le | 45.41 | 10 | B Min | BB: 42.89 (+2.52s | 5.5%) | Pipeline Swimming | 10/09/2026 | 2026 GTSA TYR Swim Classic | |
| 4025 | Nathan Zhu | 45.42 | 9 | B Min | BB: 42.89 (+2.53s | 5.6%) | Y in Central Maryland Blue Cra | 11/01/2025 | 2025 Bridget Vache Memorial MAC Fall Frenzy | |
| 4026 | Bryce Bradley | 45.42 | 9 | B Min | BB: 42.89 (+2.53s | 5.6%) | Farmington Family YMCA Stingra | 02/21/2026 | 2026 Michigan YMCA Clusters Championship | |
| 4027 | Derek Wu | 45.42 | 9 | B Min | BB: 42.89 (+2.53s | 5.6%) | Long Island Aquatic Club | 03/27/2026 | 2026 MR Bronze Championship South LIE | |
| 4028 | Dmitrii Volkhov | 45.42 | 10 | B Min | BB: 42.89 (+2.53s | 5.6%) | San Antonio Wave | 08/01/2026 | 2026 ST HPAC Summer B Champs | |
| 4029 | William Buck | 45.42 | 8 | B Min | BB: 42.89 (+2.53s | 5.6%) | Orange Beach Swim Team | 10/02/2026 | 2026 Vance Rose Invitational | |
| 4030 | Nathan Su | 45.42 | 10 | B Min | BB: 42.89 (+2.53s | 5.6%) | DeAnza Cupertino Aquatics | 10/03/2026 | 2026 De Anza Cupertino Aquatics SC CBA Meet | |
| 4031 | Francis Mitchell | 45.42 | 9 | B Min | BB: 42.89 (+2.53s | 5.6%) | West Express Swim Team | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 4032 | Colton Fisher | 45.43 | 9 | B Min | BB: 42.89 (+2.54s | 5.6%) | Quince Orchard Swim Academy | 03/20/2026 | 2026 RMSC Spring Finale | |
| 4033 | Abraham Sanchez | 45.43 | 10 | B Min | BB: 42.89 (+2.54s | 5.6%) | Apex Swim Club | 10/25/2025 | 2025 MR QNS Can I Kick It Invitational | |
| 4034 | Jeffrey Zhang | 45.43 | 8 | B Min | BB: 42.89 (+2.54s | 5.6%) | Tac Titans | 05/02/2026 | 2026 TAC TITANS Oceanus Challenge Meet | |
| 4035 | Henry Pols | 45.43 | 10 | B Min | BB: 42.89 (+2.54s | 5.6%) | Huntsville Swim Association | 09/26/2026 | 2026 Ricky Hui Meet | |
| 4036 | Andrew Bu | 45.43 | 10 | B Min | BB: 42.89 (+2.54s | 5.6%) | Sunnyvale Swim Club | 10/03/2026 | 2026 De Anza Cupertino Aquatics SC CBA Meet | |
| 4037 | Otis Brown | 45.43 | 9 | B Min | BB: 42.89 (+2.54s | 5.6%) | Bainbridge Island Swim Club | 09/13/2026 | 2026 PN BISC Season Opening Blue Gold Appr | |
| 4038 | Asher Freiberg | 45.43 | 10 | B Min | BB: 42.89 (+2.54s | 5.6%) | Kamehameha Swim Club | 10/02/2026 | 2026 HI Al Minn Invitational | |
| 4039 | Matthew Sparacino | 45.44 | 10 | B Min | BB: 42.89 (+2.55s | 5.6%) | South Lyon Aquatics | 01/31/2026 | 2026 Guppy Bowl | |
| 4040 | Micah Brown | 45.44 | 8 | B Min | BB: 42.89 (+2.55s | 5.6%) | MN Flyers Swim Team | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 4041 | William Beaton | 45.44 | 10 | B Min | BB: 42.89 (+2.55s | 5.6%) | Commonwealth Swimming | 03/13/2026 | 2026 NE INST NE Cup | |
| 4042 | Cameron Moye | 45.44 | 8 | B Min | BB: 42.89 (+2.55s | 5.6%) | North Palm Beach Swim Club | 10/02/2026 | Mike Horgan 2026 | |
| 4043 | Easton Keelan | 45.45 | 8 | B Min | BB: 42.89 (+2.56s | 5.6%) | Y in Central Maryland Blue Cra | 12/05/2025 | 2025 Christmas Championships | |
| 4044 | Ricky Gunther | 45.45 | 10 | B Min | BB: 42.89 (+2.56s | 5.6%) | Gsa | 10/24/2025 | 2025 GCY Spooktacular | |
| 4045 | Dresden Ramirez | 45.45 | 10 | B Min | BB: 42.89 (+2.56s | 5.6%) | Legacy Aquatics | 08/06/2026 | 2026 NE LA August SCY Invitational | |
| 4046 | Jonah VerMeer | 45.45 | 10 | B Min | BB: 42.89 (+2.56s | 5.6%) | Aquajets Swim Team | 02/07/2026 | 2026 MN AQJT February Invite | |
| 4047 | William MacPhail | 45.45 | 10 | B Min | BB: 42.89 (+2.56s | 5.6%) | Edina Swim Club | 11/08/2025 | 2025 MN WOLF HOWL AT THE MOON INVITE | |
| 4048 | Luke Hammer | 45.45 | 10 | B Min | BB: 42.89 (+2.56s | 5.6%) | University Place Aquatic Club | 09/26/2026 | 2026 PN UPAC Fall Open Approved | |
| 4049 | Guillermo Dinares Cardenal | 45.45 | 9 | B Min | BB: 42.89 (+2.56s | 5.6%) | Vashon Seals Swim Team | 04/26/2025 | 2025 PN UPAC Mark Olson Invitational | |
| 4050 | Matthew Chen | 45.46 | 9 | B Min | BB: 42.89 (+2.57s | 5.7%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
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.