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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4001 | Theo Marroquin | 51.41 | 10 | B Min | BB: 47.69 (+3.72s | 7.2%) | South Louisiana Swim Team | 10/04/2025 | 2025 CMSA Vance Rose Invitational | |
| 4002 | Rudra Bhardwaj | 51.41 | 8 | B Min | BB: 47.69 (+3.72s | 7.2%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 4003 | Thomas Apple | 51.41 | 9 | B Min | BB: 47.69 (+3.72s | 7.2%) | Greensboro Community YMCA | 10/10/2025 | 2025 TYDE Andy Craver Autumn Leaves Inv | |
| 4004 | Maverick Dunteman | 51.41 | 9 | B Min | BB: 47.69 (+3.72s | 7.2%) | North Palm Beach Swim Club | 11/21/2025 | 2025 NPB Turkey Invite | |
| 4005 | Grant Coburn | 51.41 | 9 | B Min | BB: 47.69 (+3.72s | 7.2%) | Barracuda Aquatic Club | 11/14/2025 | November Meet 2025 | |
| 4006 | Chezeq Morgos | 51.41 | 9 | B Min | BB: 47.69 (+3.72s | 7.2%) | Sea Dragon Aquatics | 01/11/2025 | TSUNAMI WINTERFEST MEET | |
| 4007 | DeRon Montgomery | 51.41 | 8 | B Min | BB: 47.69 (+3.72s | 7.2%) | Razor Aquatics | 01/16/2026 | SLA Arctic Blast 2026 | |
| 4008 | William Frohnen | 51.42 | 8 | B Min | BB: 47.69 (+3.73s | 7.3%) | San Ramon Valley Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 4009 | Soren Tung | 51.42 | 10 | B Min | BB: 47.69 (+3.73s | 7.3%) | Qns Aquatic Club | 02/07/2026 | 2026 MR QNS We Fly High Invitational | |
| 4010 | Hiro Johansen | 51.42 | 9 | B Min | BB: 47.69 (+3.73s | 7.3%) | Brooklyn Stingrays | 11/01/2025 | 2025 MR TRI Fall SCY Invitational | |
| 4011 | Alexander Vonberger | 51.42 | 9 | B Min | BB: 47.69 (+3.73s | 7.3%) | Aqua Culture Swim School | 12/06/2025 | 2025 PAC 11 Over Snow Globe Champs | |
| 4012 | Albin Gidley | 51.42 | 10 | B Min | BB: 47.69 (+3.73s | 7.3%) | Rockfish Swimming | 02/06/2026 | 2026 Last Chance Qualifying Meet | |
| 4013 | Colton Tay | 51.42 | 10 | B Min | BB: 47.69 (+3.73s | 7.3%) | Sandpipers of Nevada | 07/11/2025 | July 2025 Rock The Blocks | |
| 4014 | Alexander Tong | 51.42 | 9 | B Min | BB: 47.69 (+3.73s | 7.3%) | Revolution Swim Club | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 4015 | Samuel Stankus | 51.43 | 10 | B Min | BB: 47.69 (+3.74s | 7.3%) | YMCA of the North Shore Sharks | 02/07/2026 | 2026 NE YNS Last Chance Qualifier | |
| 4016 | Bennett Rhodes | 51.43 | 9 | B Min | BB: 47.69 (+3.74s | 7.3%) | Nation\\\\\\'s Capital Swim Club | 12/04/2025 | 2025 RAYS Nutcracker Classic Copied | |
| 4017 | Nova Eisel | 51.43 | 9 | B Min | BB: 47.69 (+3.74s | 7.3%) | Great Wolf Swim Team | 12/05/2025 | 2025 MN AQJT 14 U Single Age State Meet Cop | |
| 4018 | Kawika Cox | 51.43 | 10 | B Min | BB: 47.69 (+3.74s | 7.3%) | Kamehameha Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 4019 | Ben Noorda | 51.44 | 9 | B Min | BB: 47.69 (+3.75s | 7.3%) | Nitro Swimming | 11/16/2025 | 2025 ST NTRO Turkey Trot | |
| 4020 | John Gurr | 51.44 | 9 | B Min | BB: 47.69 (+3.75s | 7.3%) | Inspire Swimming | 02/21/2025 | 2025 Gulf 12 Under Champs (NOCH) | |
| 4021 | Alden Bradstreet | 51.45 | 10 | B Min | BB: 47.69 (+3.76s | 7.3%) | Jcc Sea Serpents | 11/08/2025 | 2025 NE JCCS Lochness Specialty Copied | |
| 4022 | Benjamin Du | 51.45 | 9 | B Min | BB: 47.69 (+3.76s | 7.3%) | Santa Clara Swim Club | 11/15/2024 | MBSC GSMY Z1S Race To AGC C B A+ | |
| 4023 | Felipe Costa | 51.45 | 9 | B Min | BB: 47.69 (+3.76s | 7.3%) | Kissimmee Swim Association | 10/25/2025 | 2025 Halloween Spooktacular | |
| 4024 | Roland Komiss | 51.45 | 10 | B Min | BB: 47.69 (+3.76s | 7.3%) | Fairfax Foxes Swimming | 11/21/2025 | 2025 Swim Rock | |
| 4025 | Aiden Chavarria | 51.45 | 7 | B Min | BB: 47.69 (+3.76s | 7.3%) | Rockville Montgomery Swim Club | 12/06/2025 | 2025 Reindeer Mini Meet | |
| 4026 | Ellis Shelton | 51.45 | 10 | B Min | BB: 47.69 (+3.76s | 7.3%) | Memphis Tiger Swimming | 01/16/2026 | 2026 Gabrielle Rose Tiger Classic | |
| 4027 | Vance Miller | 51.46 | 10 | B Min | BB: 47.69 (+3.77s | 7.3%) | Poseidon Swimming Inc | 12/05/2025 | NOVA December Dip | |
| 4028 | Eric Hu | 51.46 | 8 | B Min | BB: 47.69 (+3.77s | 7.3%) | Santa Clara Swim Club | 10/25/2025 | GGST Spooktacular 2025 | |
| 4029 | Oliver Rutz | 51.46 | 9 | B Min | BB: 47.69 (+3.77s | 7.3%) | Retriever Aquatic Club | 10/17/2025 | 2025 NBAC Fall Fastival Meet | |
| 4030 | Jackson Thum | 51.46 | 10 | B Min | BB: 47.69 (+3.77s | 7.3%) | Sioux Falls Swim Team | 01/02/2026 | SFST Intrasquad 1 2 26 | |
| 4031 | Andreas Hopkins | 51.46 | 10 | B Min | BB: 47.69 (+3.77s | 7.3%) | 92ny Flying Dolphins | 12/11/2025 | 2025 NE SHAWMUT Candy Cane Classic | |
| 4032 | Eoin Philip | 51.46 | 9 | B Min | BB: 47.69 (+3.77s | 7.3%) | Club Wolverine | 10/17/2025 | 2025 USSC Trick Or Treat Grab Bag Classic | |
| 4033 | Jaxon Aleksandrowski | 51.46 | 9 | B Min | BB: 47.69 (+3.77s | 7.3%) | Grosse Pointe Gators | 02/06/2026 | 2026 Michigan Open | |
| 4034 | Carter McCluskey | 51.47 | 10 | B Min | BB: 47.69 (+3.78s | 7.3%) | Anglerfish Aquatics | 01/16/2026 | 2026 NE CS Bronze Championships | |
| 4035 | Owen Zhuang | 51.47 | 9 | B Min | BB: 47.69 (+3.78s | 7.3%) | DeAnza Cupertino Aquatics | 10/26/2024 | 2024 SUNN Fall Classic CBA+ Meet | |
| 4036 | Connor Dudley | 51.47 | 9 | B Min | BB: 47.69 (+3.78s | 7.3%) | Madison Swim Club Inc. | 02/06/2026 | 2026 Qualifying Meet | |
| 4037 | Graycin Antoine | 51.47 | 10 | B Min | BB: 47.69 (+3.78s | 7.3%) | YMCA of South Florida | 01/23/2026 | 2026 Mile By Moonlight And Winterish Invite | |
| 4038 | William Gordon | 51.47 | 10 | B Min | BB: 47.69 (+3.78s | 7.3%) | Life Time Fitness New York Swi | 10/25/2025 | 2025 MR QNS Can I Kick It Invitational | |
| 4039 | Alberto Camarena Moreno | 51.47 | 9 | B Min | BB: 47.69 (+3.78s | 7.3%) | Tiburones DE Parral | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 4040 | Kaleb Luu | 51.48 | 9 | B Min | BB: 47.69 (+3.79s | 7.4%) | Pleasanton Seahawks | 01/10/2026 | Pleasanton Seahawks SCY C B BB+ Meet | |
| 4041 | Oliver Cao | 51.48 | 10 | B Min | BB: 47.69 (+3.79s | 7.4%) | South Shore YMCA Strypers | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 4042 | Michael Reinhart | 51.48 | 10 | B Min | BB: 47.69 (+3.79s | 7.4%) | Long Island Express | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 4043 | Benson Gao | 51.48 | 9 | B Min | BB: 47.69 (+3.79s | 7.4%) | Santa Clara Swim Club | 10/25/2025 | GGST Spooktacular 2025 | |
| 4044 | Darsh Pokale | 51.48 | 8 | B Min | BB: 47.69 (+3.79s | 7.4%) | South East Metro Sharks | 01/09/2026 | 2026 MN FOXJ Winter Classic | |
| 4045 | Daniel Wang | 51.48 | 8 | B Min | BB: 47.69 (+3.79s | 7.4%) | Unattached | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | |
| 4046 | Caleb Reyes | 51.48 | 9 | B Min | BB: 47.69 (+3.79s | 7.4%) | Winning Waters Aquatics Club | 10/18/2025 | 2025 ST SRG SCY Surgetoberfest | |
| 4047 | Arthur Dodington | 51.48 | 9 | B Min | BB: 47.69 (+3.79s | 7.4%) | Edina Swim Club | 01/09/2026 | 2026 MN FOXJ Winter Classic | |
| 4048 | Lincoln Hunt | 51.48 | 9 | B Min | BB: 47.69 (+3.79s | 7.4%) | Middlebury Aquatics Club | 01/16/2026 | 2026 NE UVAC Bronze Championships | |
| 4049 | Alexander Howell | 51.48 | 10 | B Min | BB: 47.69 (+3.79s | 7.4%) | Byron Center Aquatics | 10/17/2025 | 2025 WMS Boo Bash | |
| 4050 | Freddie Cheng | 51.49 | 9 | B Min | BB: 47.69 (+3.80s | 7.4%) | First Colony Swim Team, Inc. | 02/21/2025 | 2025 Gulf 12 Under Champs (PACK) | |
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.