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 | |
|---|---|---|---|---|---|---|---|---|---|
| 51 | Robert Mulder | 37.04 | 10 | AAA Min | AAAA: 36.39 (+0.65s | 1.8%) | Badger Swim Club,Inc. | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 52 | Bennett Dunbar | 37.04 | 10 | AAA Min | AAAA: 36.39 (+0.65s | 1.8%) | Unattached | 01/03/2026 | 2026 Mid State 14 Under All Star Champs 03Jan2026 Team Michigan | |
| 53 | Aurelius Lien | 37.06 | 9 | AAA Min | AAAA: 36.39 (+0.67s | 1.8%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 54 | Aiden Aliabadi | 37.08 | 10 | AAA Min | AAAA: 36.39 (+0.69s | 1.9%) | Nation\\\\\\'s Capital Swim Club | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 55 | Declan Benton | 37.11 | 10 | AAA Min | AAAA: 36.39 (+0.72s | 1.9%) | Sawtooth Aquatic Club | 12/04/2025 | 2025 Holiday Swim Festival | |
| 56 | Lucas Qi | 37.13 | 10 | AAA Min | AAAA: 36.39 (+0.74s | 2.0%) | Tac Titans | 01/16/2026 | 2026 Vector Security Polar Plunge Meet | |
| 57 | Benjamin Rozensztroch | 37.15 | 7 | AAA Min | AAAA: 36.39 (+0.76s | 2.0%) | Miami Country Day School | 10/15/2025 | 2025 South Florida MS Champs USA S OBS | |
| 58 | Wu Zhou | 37.18 | 10 | AAA Min | AAAA: 36.39 (+0.79s | 2.1%) | Swim Torrance | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 59 | Arnas Thompson | 37.21 | 10 | AAA Min | AAAA: 36.39 (+0.82s | 2.2%) | Saint Andrew\\\\\\'s Aquatics | 12/11/2025 | 35th Annual Winter Championships | |
| 60 | John Stitzenberg | 37.25 | 9 | AAA Min | AAAA: 36.39 (+0.86s | 2.3%) | North Carolina Aquatic Club | 01/16/2026 | GSA January Jump Start 2026 | |
| 61 | Keegan Donnelly | 37.26 | 10 | AAA Min | AAAA: 36.39 (+0.87s | 2.3%) | Mason Makos Swim Team | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 62 | William Saade | 37.28 | 10 | AAA Min | AAAA: 36.39 (+0.89s | 2.4%) | Los Angeles Swim Club | 04/03/2025 | Pacific Swimming SC Far Western Champs | |
| 63 | Karbon Hock | 37.30 | 9 | AAA Min | AAAA: 36.39 (+0.91s | 2.4%) | Green Bay Swim Club | 03/29/2025 | 2025 MN MYAS Midwest Regional Swim Meet | |
| 64 | Qurtis Lo | 37.36 | 9 | AAA Min | AAAA: 36.39 (+0.97s | 2.6%) | Marlins Of Raleigh | 12/04/2025 | 14th Annual Swim Tri Speedo Winter Champs | |
| 65 | Rossi Cofield | 37.42 | 9 | AAA Min | AAAA: 36.39 (+1.03s | 2.8%) | Rockville Montgomery Swim Club | 01/16/2026 | 2026 RMSC January Intrasquad Meet | |
| 66 | Daniel Lazar | 37.43 | 10 | AAA Min | AAAA: 36.39 (+1.04s | 2.8%) | Coast Aquatics | 02/13/2026 | 2026 SES Region 4 Championships | |
| 67 | August Liao | 37.46 | 10 | AAA Min | AAAA: 36.39 (+1.07s | 2.9%) | Canyons Aquatic Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 68 | Liam Ruffcorn | 37.48 | 10 | AAA Min | AAAA: 36.39 (+1.09s | 2.9%) | Shasta YMCA Sharks | 04/03/2025 | Pacific Swimming SC Far Western Champs | |
| 69 | Anson Villanueva | 37.51 | 10 | AAA Min | AAAA: 36.39 (+1.12s | 3.0%) | Splash Aquatics | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 70 | Matthew Zhao | 37.55 | 10 | AAA Min | AAAA: 36.39 (+1.16s | 3.1%) | Brea Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 71 | Jake Lee | 37.56 | 10 | AAA Min | AAAA: 36.39 (+1.17s | 3.1%) | Circle City Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 72 | Sebastian Saade | 37.56 | 10 | AAA Min | AAAA: 36.39 (+1.17s | 3.1%) | Los Angeles Swim Club | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 73 | Jeffrey Xiong | 37.57 | 10 | AAA Min | AAAA: 36.39 (+1.18s | 3.1%) | Arctic Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 74 | Aiden Woo | 37.68 | 10 | AAA Min | AAAA: 36.39 (+1.29s | 3.4%) | Rio-Green | 01/24/2026 | 2026 SCS Swim Festival | |
| 75 | Harry Zhou | 37.70 | 10 | AAA Min | AAAA: 36.39 (+1.31s | 3.5%) | Aquajets Swim Team | 01/30/2026 | 2026 MN MTKA TYR Team Challenge | |
| 76 | Marco Sun | 37.71 | 10 | AAA Min | AAAA: 36.39 (+1.32s | 3.5%) | Pleasanton Seahawks | 01/10/2026 | Pleasanton Seahawks SCY C B BB+ Meet | |
| 77 | Nihan Bhimavarapu | 37.72 | 10 | AAA Min | AAAA: 36.39 (+1.33s | 3.5%) | Revolution Swim Club | 12/11/2025 | 2025 NE SHAWMUT Candy Cane Classic | |
| 78 | Robert Obermeyer | 37.77 | 10 | AAA Min | AAAA: 36.39 (+1.38s | 3.7%) | Piedmont Swim Team | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 79 | Linden Forney | 37.77 | 9 | AAA Min | AAAA: 36.39 (+1.38s | 3.7%) | Jesuit | 02/14/2025 | 2025 OR HS 6a 2 | |
| 80 | Pace Bui | 37.83 | 10 | AAA Min | AAAA: 36.39 (+1.44s | 3.8%) | Fog City Hammerheads | 01/17/2026 | PC PRNA Final Splash To The Championship CBA+ | |
| 81 | Dennis Hauser | 37.83 | 10 | AAA Min | AAAA: 36.39 (+1.44s | 3.8%) | Asphalt Green Unified Aquatics | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 82 | Maxim Kurochkin | 37.83 | 10 | AAA Min | AAAA: 36.39 (+1.44s | 3.8%) | Cat 5 Aquatics | 01/30/2026 | 2026 Mac Crutchfield Invitational | |
| 83 | Joel Taylor | 37.86 | 10 | AAA Min | AAAA: 36.39 (+1.47s | 3.9%) | Mission Viejo Nadadores | 04/03/2025 | Pacific Swimming SC Far Western Champs | |
| 84 | Rain Liu | 37.88 | 10 | AAA Min | AAAA: 36.39 (+1.49s | 3.9%) | Rancho San Dieguito | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 85 | Robert Wasilewski | 37.95 | 10 | AAA Min | AAAA: 36.39 (+1.56s | 4.1%) | The St. James Swim Club | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 86 | William Wang | 37.97 | 10 | AAA Min | AAAA: 36.39 (+1.58s | 4.2%) | Pacific Dragons Swim Team | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
| 87 | Oliver Yang | 38.01 | 10 | AAA Min | AAAA: 36.39 (+1.62s | 4.3%) | Charles River Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 88 | Can Ucku | 38.01 | 11 | AAA Min | AAAA: 36.39 (+1.62s | 4.3%) | Long Island Express | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 89 | Michael Navarro | 38.04 | 10 | AAA Min | AAAA: 36.39 (+1.65s | 4.3%) | Swim Fort Lauderdale | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 90 | Keaton Weathers | 38.04 | 10 | AAA Min | AAAA: 36.39 (+1.65s | 4.3%) | Walnut Creek Aquabears | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 91 | Parker Warren | 38.09 | 10 | AAA Min | AAAA: 36.39 (+1.70s | 4.5%) | Southwest Stars Swim Club | 12/05/2025 | 2025 Speedo Gator Holiday Classic | |
| 92 | Jayden Wu | 38.11 | 10 | AAA Min | AAAA: 36.39 (+1.72s | 4.5%) | Charles River Aquatics | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 93 | Marc Fat | 38.11 | 10 | AAA Min | AAAA: 36.39 (+1.72s | 4.5%) | Charles River Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 94 | Ryan Tsuchitani | 38.12 | 10 | AAA Min | AAAA: 36.39 (+1.73s | 4.5%) | Mason Makos Swim Team | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 95 | Ike Gilman | 38.12 | 9 | AAA Min | AAAA: 36.39 (+1.73s | 4.5%) | Ridgeview | 02/14/2025 | 2025 OR HS 5a 4 | |
| 96 | Layth Alkhairo | 38.12 | 14 | AAA Min | AAAA: 36.39 (+1.73s | 4.5%) | Reno Aquatic Club | 01/16/2026 | 2026 Blizzard Blast Swim Meet | |
| 97 | Leopold Stevens | 38.14 | 10 | AAA Min | AAAA: 36.39 (+1.75s | 4.6%) | YMCA of the Triangle Area Swim | 11/21/2025 | 2025 YOTA Arena Turkey Classic | |
| 98 | Russell Choy | 38.15 | 10 | AAA Min | AAAA: 36.39 (+1.76s | 4.6%) | Rio-Green | 01/24/2026 | 2026 SCS Swim Festival | |
| 99 | Joey Fox-Quamme | 38.18 | 9 | AAA Min | AAAA: 36.39 (+1.79s | 4.7%) | Jesuit | 02/14/2025 | 2025 OR HS 6a 2 | |
| 100 | Alexander Drewisis | 38.19 | 10 | AAA Min | AAAA: 36.39 (+1.80s | 4.7%) | Three Village Swim Club | 01/30/2026 | 2026 MR SSC Polar Bear Plunge | |
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.