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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1001 | Aiden Gordon | 43.71 | 9 | BB Min | A: 42.09 (+1.62s | 3.7%) | Monroe-Woodbury Devilfish Aqua | 01/31/2026 | 2026 MR MWDA YBAR Sink Or Swim Invitational | |
| 1002 | Kevin Liu | 43.72 | 10 | BB Min | A: 42.09 (+1.63s | 3.7%) | Arctic Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1003 | Tucker McCullough | 43.73 | 9 | BB Min | A: 42.09 (+1.64s | 3.8%) | Team Rebel Aquatics | 12/13/2024 | 2024 CA RAA SCS WAG | |
| 1004 | Max Frankel | 43.73 | 9 | BB Min | A: 42.09 (+1.64s | 3.8%) | SwimRight Team | 12/11/2025 | 35th Annual Winter Championships | |
| 1005 | Gustavo Granados | 43.74 | 9 | BB Min | A: 42.09 (+1.65s | 3.8%) | Fenix Swim Club | 12/11/2025 | 35th Annual Winter Championships | |
| 1006 | Frank Rubino | 43.74 | 10 | BB Min | A: 42.09 (+1.65s | 3.8%) | Middies Wave Ryders | 11/15/2025 | 2025 MR SSC Turkey Trot Invitational | |
| 1007 | Gracen Moultrie | 43.74 | 10 | BB Min | A: 42.09 (+1.65s | 3.8%) | North Palm Beach Swim Club | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 1008 | Luke Chai | 43.74 | 9 | BB Min | A: 42.09 (+1.65s | 3.8%) | Pleasanton Seahawks | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 1009 | Yifan Liu | 43.75 | 8 | BB Min | A: 42.09 (+1.66s | 3.8%) | Mei\\\\\\'s Typhoons Swimming Club | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1010 | Hamilton Holliday | 43.75 | 10 | BB Min | A: 42.09 (+1.66s | 3.8%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1011 | Brantley Harris | 43.76 | 10 | BB Min | A: 42.09 (+1.67s | 3.8%) | Tide Swimming | 11/15/2025 | 2025 WAC Fall Classic | |
| 1012 | Lucas Jiang | 43.78 | 9 | BB Min | A: 42.09 (+1.69s | 3.9%) | Kingfish Swimming Medfield | 12/11/2025 | 2025 NE SHAWMUT Candy Cane Classic | |
| 1013 | Matthew Thurman | 43.78 | 10 | BB Min | A: 42.09 (+1.69s | 3.9%) | Dynamo Swim Club | 10/17/2025 | 2025 HSA Fran Norris Meet | |
| 1014 | Cana Oyer | 43.78 | 9 | BB Min | A: 42.09 (+1.69s | 3.9%) | Sporting Jax Aquatic Club | 12/04/2025 | RAFC Winter Classic | |
| 1015 | Liam Benson | 43.78 | 10 | BB Min | A: 42.09 (+1.69s | 3.9%) | Sea Devils | 01/10/2026 | 2026 MN MONC New Years Invite | |
| 1016 | Matteo Castro-Munoz | 43.78 | 10 | BB Min | A: 42.09 (+1.69s | 3.9%) | Quince Orchard Swim Academy | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 1017 | Reed Larson | 43.79 | 9 | BB Min | A: 42.09 (+1.70s | 3.9%) | Blue Tide Aquatics | 01/17/2025 | 2025 TWST Speedo Winter Classic Invitational | |
| 1018 | Henry Curtis | 43.80 | 10 | BB Min | A: 42.09 (+1.71s | 3.9%) | McCallie-GPS Aquatics | 01/09/2026 | 2026 MCC January Invite | |
| 1019 | Liam Robley | 43.80 | 10 | BB Min | A: 42.09 (+1.71s | 3.9%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1020 | Mars Tremblay | 43.80 | 9 | BB Min | A: 42.09 (+1.71s | 3.9%) | North Baltimore Aquatic Club | 11/14/2025 | 2025 NBAC Thanksgiving Meet | |
| 1021 | Lucas Guillen | 43.80 | 8 | BB Min | A: 42.09 (+1.71s | 3.9%) | 757swim | 12/05/2025 | 2025 757swim Grand Illumination | |
| 1022 | Aidan Baranec | 43.81 | 9 | BB Min | A: 42.09 (+1.72s | 3.9%) | Connetquot Swim Club | 01/09/2026 | 2026 MR TVSC TJ Kelly Memorial Joust | |
| 1023 | Samuel Mills | 43.81 | 10 | BB Min | A: 42.09 (+1.72s | 3.9%) | Madison Swimming Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1024 | William Barrett | 43.82 | 10 | BB Min | A: 42.09 (+1.73s | 3.9%) | Kingfish Swimming Medfield | 12/11/2025 | 2025 NE SHAWMUT Candy Cane Classic | |
| 1025 | Matheus Jacqmin Abijaodi | 43.82 | 9 | BB Min | A: 42.09 (+1.73s | 3.9%) | Marlins Of Raleigh | 02/13/2026 | Speedo 2026 MOR Short Course Qualifier Meet | |
| 1026 | Keegan Brown | 43.82 | 10 | BB Min | A: 42.09 (+1.73s | 3.9%) | Kingfish Swimming Medfield | 11/14/2025 | 2025 NE KING CAC Fall Invite Copied | |
| 1027 | Graham Cassella | 43.82 | 10 | BB Min | A: 42.09 (+1.73s | 3.9%) | Y-Spartaquatics Swim Club | 01/16/2026 | 2026 TNAQ JANUARY INVITATIONAL | |
| 1028 | Rayan Khan | 43.83 | 10 | BB Min | A: 42.09 (+1.74s | 4.0%) | South Shore YMCA Strypers | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1029 | Andrew Szalay | 43.83 | 10 | BB Min | A: 42.09 (+1.74s | 4.0%) | Austin Swim Club | 12/12/2025 | 2025 ST AAAA NS Winter Wonderland | |
| 1030 | Daniel Duffy | 43.83 | 10 | BB Min | A: 42.09 (+1.74s | 4.0%) | York Swim Club of Northern Vir | 11/21/2025 | 2025 Swim Rock | |
| 1031 | Lucca Belluco | 43.85 | 9 | BB Min | A: 42.09 (+1.76s | 4.0%) | Marlins Of Raleigh | 02/13/2026 | Speedo 2026 MOR Short Course Qualifier Meet | |
| 1032 | Grayson Sawicki | 43.85 | 9 | BB Min | A: 42.09 (+1.76s | 4.0%) | Commonwealth Swimming | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1033 | Cedar Devnani | 43.85 | 9 | BB Min | A: 42.09 (+1.76s | 4.0%) | Lakeridge | 02/15/2025 | 2025 OR HS 6A 5 | |
| 1034 | Thomas McLain | 43.85 | 10 | BB Min | A: 42.09 (+1.76s | 4.0%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1035 | Quinn Zarambo | 43.86 | 10 | BB Min | A: 42.09 (+1.77s | 4.0%) | Mecklenburg Swim Association | 12/05/2025 | ATOM Winter Invite 2025 | |
| 1036 | Matthew Dolan | 43.86 | 10 | BB Min | A: 42.09 (+1.77s | 4.0%) | Life Time Mid Atlantic Swim Te | 02/07/2026 | 2026 MAKO QUALIFIER | |
| 1037 | Ethan Zhang | 43.87 | 8 | BB Min | A: 42.09 (+1.78s | 4.1%) | Vacaville Swim Club | 11/15/2025 | NVST Swimming Into Fall 2025 | |
| 1038 | Daniel Platon | 43.87 | 10 | BB Min | A: 42.09 (+1.78s | 4.1%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 1039 | Colin Horner | 43.87 | 10 | BB Min | A: 42.09 (+1.78s | 4.1%) | Nitro Swimming | 10/26/2025 | 2025 ST TXLA 10 U Fall Kick Off | |
| 1040 | Charles Liu Bates | 43.87 | 9 | BB Min | A: 42.09 (+1.78s | 4.1%) | Unattached | 09/14/2024 | East Bay Silver Dolphins Short Course C B BB+ | |
| 1041 | Branimir Petkov | 43.87 | 9 | BB Min | A: 42.09 (+1.78s | 4.1%) | Evolution Racing Club | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 1042 | David Xiong | 43.88 | 8 | BB Min | A: 42.09 (+1.79s | 4.1%) | Arctic Aquatics | 10/04/2025 | 2025 NE CS Fall Sprints Copied | |
| 1043 | Jayden Huang | 43.89 | 9 | BB Min | A: 42.09 (+1.80s | 4.1%) | Harbor Aquatics Club | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 1044 | Christopher Navarro | 43.89 | 10 | BB Min | A: 42.09 (+1.80s | 4.1%) | Kamehameha Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 1045 | Aiden Mulcahy | 43.89 | 10 | BB Min | A: 42.09 (+1.80s | 4.1%) | Aulea Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 1046 | Parker Sampson | 43.89 | 10 | BB Min | A: 42.09 (+1.80s | 4.1%) | Denver Swim Academy | 01/02/2026 | 2026 CO COSA New Year Open | |
| 1047 | Maximus Doiron | 43.89 | 10 | BB Min | A: 42.09 (+1.80s | 4.1%) | Williamsburg Aquatic Club | 12/11/2025 | 2025 East Coast WinterFest | |
| 1048 | Hudson Grubbs | 43.89 | 10 | BB Min | A: 42.09 (+1.80s | 4.1%) | Ridgewood YMCA Breakers Swim T | 10/10/2025 | 2025 MR COND October Fall Festival | |
| 1049 | Liam Johnson | 43.89 | 10 | BB Min | A: 42.09 (+1.80s | 4.1%) | Winchester Swim Team | 11/01/2025 | 2025 Fox Fall Invitational 2 | |
| 1050 | Alexander Manguikian | 43.90 | 10 | BB Min | A: 42.09 (+1.81s | 4.1%) | York Swim Club of Northern Vir | 02/07/2026 | 2026 PM 14 U Champs Qualifier | |
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.