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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1951 | Bradley Schrantz | 46.56 | 9 | BB Min | A: 42.09 (+4.47s | 9.6%) | Patriot Aquatics | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 1952 | Thomas Gough | 46.56 | 9 | BB Min | A: 42.09 (+4.47s | 9.6%) | Swim Tech | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1953 | John Goddard | 46.57 | 10 | BB Min | A: 42.09 (+4.48s | 9.6%) | Machine Aquatics | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 1954 | Rene Lopez | 46.57 | 10 | BB Min | A: 42.09 (+4.48s | 9.6%) | Aquax Centro Deportivo | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 1955 | Kaito Kinnaird | 46.58 | 10 | BB Min | A: 42.09 (+4.49s | 9.6%) | Excel Aquatics | 02/27/2026 | 2026 SE Southeastern Winter SC Championships | |
| 1956 | Kyle Fagan | 46.58 | 9 | BB Min | A: 42.09 (+4.49s | 9.6%) | Hickory Foundation YMCA Seahor | 03/19/2026 | 2026 USRY Short Course Champs | |
| 1957 | Everett Smith | 46.58 | 9 | BB Min | A: 42.09 (+4.49s | 9.6%) | York Swim Club of Northern Vir | 03/20/2026 | March Madness 2026 | |
| 1958 | Michael Bui | 46.58 | 10 | BB Min | A: 42.09 (+4.49s | 9.6%) | Arlington Aquatic Club | 01/17/2026 | 2026 PV January Open Audrey Moore | |
| 1959 | Elbert Wang | 46.58 | 10 | BB Min | A: 42.09 (+4.49s | 9.6%) | Mason Manta Rays | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1960 | Zachary DeLozier | 46.59 | 9 | BB Min | A: 42.09 (+4.50s | 9.7%) | Lake Oswego Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1961 | Knox Berry | 46.59 | 9 | BB Min | A: 42.09 (+4.50s | 9.7%) | Cleveland Aquatics | 11/07/2025 | TNAQ 2025 FALL INVITATIONAL | |
| 1962 | Albert Frolov | 46.59 | 8 | BB Min | A: 42.09 (+4.50s | 9.7%) | Bravo Swim Team | 11/21/2025 | 2025 SoFlo Last Chance And Holiday Classic | |
| 1963 | Jonathan Short | 46.59 | 10 | BB Min | A: 42.09 (+4.50s | 9.7%) | Rockville Montgomery Swim Club | 11/14/2025 | 2025 RMSC November Dual Meet | |
| 1964 | Alexander Bell | 46.59 | 10 | BB Min | A: 42.09 (+4.50s | 9.7%) | Stingrays Swim Team | 12/04/2025 | 2025 RAYS Nutcracker Classic Copied | |
| 1965 | Greyson Huddleston | 46.61 | 9 | BB Min | A: 42.09 (+4.52s | 9.7%) | Patriot Aquatics | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 1966 | Abraham Workneh | 46.61 | 10 | BB Min | A: 42.09 (+4.52s | 9.7%) | Nation\\\\\\'s Capital Swim Club | 11/14/2025 | 2025 PV November Open Franconia | |
| 1967 | Zen Hein | 46.61 | 10 | BB Min | A: 42.09 (+4.52s | 9.7%) | Fog City Hammerheads | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 1968 | Barrett Huffman | 46.61 | 10 | BB Min | A: 42.09 (+4.52s | 9.7%) | YMCA of Virginia\\\\\\'s Blue Ridge | 03/07/2026 | PYSA Champs 2026 | |
| 1969 | Levi Diogenes | 46.61 | 10 | BB Min | A: 42.09 (+4.52s | 9.7%) | Laker Swim | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 1970 | Hayden Justice | 46.61 | 10 | BB Min | A: 42.09 (+4.52s | 9.7%) | SwimMAC Carolina | 12/05/2025 | ATOM Winter Invite 2025 | |
| 1971 | George Peters | 46.62 | 10 | BB Min | A: 42.09 (+4.53s | 9.7%) | Rochester Swim Club | 02/13/2026 | 2026 MN RSC President S Day Meet | |
| 1972 | Gael Hernandez | 46.62 | 10 | BB Min | A: 42.09 (+4.53s | 9.7%) | EL Paso Border Land Swim Team | 02/27/2026 | 2026 BD SCY Border Champs | |
| 1973 | Relja Martic | 46.62 | 10 | BB Min | A: 42.09 (+4.53s | 9.7%) | Tollefson Swimming | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 1974 | Elis Oskvig | 46.62 | 9 | BB Min | A: 42.09 (+4.53s | 9.7%) | All Star Aquatics | 03/20/2026 | March Madness 2026 | |
| 1975 | Henry Li | 46.62 | 10 | BB Min | A: 42.09 (+4.53s | 9.7%) | Eastern Nassau Aquatic Club | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 1976 | Tristan Wolfe-Ramsey | 46.63 | 9 | BB Min | A: 42.09 (+4.54s | 9.7%) | Razor Aquatics | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 1977 | Marcus Jensen | 46.63 | 10 | BB Min | A: 42.09 (+4.54s | 9.7%) | Voltage Aquatics | 10/25/2025 | Spook Splash 2025 | |
| 1978 | Graham McPheeters | 46.63 | 9 | BB Min | A: 42.09 (+4.54s | 9.7%) | Egra Waves | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 1979 | Cooper Van Horn | 46.64 | 10 | BB Min | A: 42.09 (+4.55s | 9.8%) | Colonel Crawford Swim Team | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1980 | Alexander Paraskevov | 46.64 | 9 | BB Min | A: 42.09 (+4.55s | 9.8%) | Westlake Aquatic Facility | 02/13/2026 | 2026 ST HPAC STX Champs South | |
| 1981 | Brayden Rector | 46.64 | 9 | BB Min | A: 42.09 (+4.55s | 9.8%) | Raleigh Swimming Association | 03/26/2026 | 2026 NCAC Spring Tar Heel States Copied | |
| 1982 | Brayden Anyanwu | 46.65 | 9 | BB Min | A: 42.09 (+4.56s | 9.8%) | Sporting Jax Aquatic Club | 10/10/2025 | 2025 October Classic | |
| 1983 | Alexander Tinajero | 46.65 | 9 | BB Min | A: 42.09 (+4.56s | 9.8%) | First Colony Swim Team, Inc. | 02/21/2025 | 2025 Gulf 12 Under Champs (PACK) | |
| 1984 | Santiago Obando Cometa | 46.65 | 9 | BB Min | A: 42.09 (+4.56s | 9.8%) | Columbia Aquatics Association | 01/03/2026 | 2026 ASTS Invitational | |
| 1985 | Lucas Reznik | 46.65 | 10 | BB Min | A: 42.09 (+4.56s | 9.8%) | Asphalt Green Unified Aquatics | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 1986 | Tyne Dunkerley | 46.66 | 10 | BB Min | A: 42.09 (+4.57s | 9.8%) | Patriot Aquatics | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 1987 | Blake Baisch | 46.66 | 9 | BB Min | A: 42.09 (+4.57s | 9.8%) | Seattle Metropolitan Aquatic C | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 1988 | Hunter Schultz | 46.66 | 10 | BB Min | A: 42.09 (+4.57s | 9.8%) | Pacific Swim | 12/04/2025 | 2025 Holiday Swim Festival | |
| 1989 | Dylan Hunter | 46.66 | 9 | BB Min | A: 42.09 (+4.57s | 9.8%) | Great Lakes Tritons | 02/06/2026 | 2026 Michigan Open | |
| 1990 | Crosby Kothe | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Mecklenburg Swim Association | 01/23/2026 | 2026 TEAM Arena Western Open Copied | |
| 1991 | Daniel Lin | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Dads Club Swim Team | 02/21/2025 | 2025 Gulf 12 Under Champs (DADS) | |
| 1992 | Zac Chang | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Westchester Aquatic Club | 12/11/2025 | 35th Annual Winter Championships | |
| 1993 | Adam Rosol | 46.67 | 9 | BB Min | A: 42.09 (+4.58s | 9.8%) | Twisters Swim Club | 02/28/2026 | 2026 MR QNS I Know I Can Invitational | |
| 1994 | Owen Yan | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Wave Aquatics | 12/06/2025 | 2025 PN Fall Divisionals, Division 3 WAVE | |
| 1995 | John Telischak | 46.68 | 10 | BB Min | A: 42.09 (+4.59s | 9.8%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 1996 | Kai Vo | 46.68 | 9 | BB Min | A: 42.09 (+4.59s | 9.8%) | Splash Aquatics | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 1997 | Grayson Bachkosky | 46.68 | 9 | BB Min | A: 42.09 (+4.59s | 9.8%) | Bgc-N. Westchester Marlins | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 1998 | Thomas Shearer | 46.69 | 10 | BB Min | A: 42.09 (+4.60s | 9.9%) | Sailfish | 01/17/2026 | 2026 ST AQTX B Champs North | |
| 1999 | Declan DiFazio | 46.69 | 10 | BB Min | A: 42.09 (+4.60s | 9.9%) | Hydro-sonic Tiburones | 10/25/2025 | 2025 PAC 10 Under RockHopper Penguin Meet | |
| 2000 | Mikhail Lagzdin | 46.70 | 9 | BB Min | A: 42.09 (+4.61s | 9.9%) | Olympic Cascade Aquatics | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
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.