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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1901 | Liam Lawson | 46.61 | 10 | BB Min | A: 42.09 (+4.52s | 9.7%) | Lake Oswego Swim Club | 02/06/2026 | 2026 Forest Grove Coast Range Qualifier | |
| 1902 | 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 | |
| 1903 | Harrison Wu | 46.61 | 8 | BB Min | A: 42.09 (+4.52s | 9.7%) | Long Island Aquatic Club | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 1904 | Hayden Justice | 46.61 | 9 | BB Min | A: 42.09 (+4.52s | 9.7%) | SwimMAC Carolina | 12/05/2025 | ATOM Winter Invite 2025 | |
| 1905 | Relja Martic | 46.62 | 10 | BB Min | A: 42.09 (+4.53s | 9.7%) | Tollefson Swimming | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 1906 | Kai Kennedy | 46.62 | 10 | BB Min | A: 42.09 (+4.53s | 9.7%) | Academy Swim Club | 10/25/2025 | 2025 HI 25th Annual Bill Smith Invitational | |
| 1907 | 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 | |
| 1908 | Marcus Jensen | 46.63 | 9 | BB Min | A: 42.09 (+4.54s | 9.7%) | Voltage Aquatics | 10/25/2025 | Spook Splash 2025 | |
| 1909 | Lucas Romero | 46.64 | 8 | BB Min | A: 42.09 (+4.55s | 9.8%) | Long Island Aquatic Club | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 1910 | William Chang | 46.64 | 10 | BB Min | A: 42.09 (+4.55s | 9.8%) | Sunnyvale Swim Club | 10/25/2025 | 2025 SUNN Fall Classic | |
| 1911 | 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 | |
| 1912 | Zhizhe Zheng | 46.64 | 10 | BB Min | A: 42.09 (+4.55s | 9.8%) | Crimson Aquatics | 10/17/2025 | 2025 NE CRIM OCTOBER TEAM SPECIALTY W DIST | |
| 1913 | Brayden Anyanwu | 46.65 | 9 | BB Min | A: 42.09 (+4.56s | 9.8%) | Sporting Jax Aquatic Club | 10/10/2025 | 2025 October Classic | |
| 1914 | Anders Eklund | 46.65 | 10 | BB Min | A: 42.09 (+4.56s | 9.8%) | Great Wolf Swim Team | 01/09/2026 | 2026 MN Mako Snowflake Splash | |
| 1915 | Alexander Tinajero | 46.65 | 8 | BB Min | A: 42.09 (+4.56s | 9.8%) | First Colony Swim Team, Inc. | 02/21/2025 | 2025 Gulf 12 Under Champs (PACK) | |
| 1916 | Santiago Obando Cometa | 46.65 | 9 | BB Min | A: 42.09 (+4.56s | 9.8%) | Columbia Aquatics Association | 01/03/2026 | 2026 ASTS Invitational | |
| 1917 | Jeremiah Perez | 46.65 | 10 | BB Min | A: 42.09 (+4.56s | 9.8%) | Sporting Jax Aquatic Club | 12/04/2025 | RAFC Winter Classic | |
| 1918 | Micah Connell | 46.65 | 10 | BB Min | A: 42.09 (+4.56s | 9.8%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 1919 | 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 | |
| 1920 | Hunter Schultz | 46.66 | 10 | BB Min | A: 42.09 (+4.57s | 9.8%) | Pacific Swim | 12/04/2025 | 2025 Holiday Swim Festival | |
| 1921 | Enzo Lin | 46.66 | 9 | BB Min | A: 42.09 (+4.57s | 9.8%) | Splash Aquatics | 10/25/2025 | 2025 HI 25th Annual Bill Smith Invitational | |
| 1922 | Dylan Hunter | 46.66 | 9 | BB Min | A: 42.09 (+4.57s | 9.8%) | Great Lakes Tritons | 02/06/2026 | 2026 Michigan Open | |
| 1923 | Clark Best | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Columbia Aquatics Association | 11/14/2025 | GBSA 2025 Thanksgiving Swim Fest | |
| 1924 | 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 | |
| 1925 | Jackson Phlipot | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Mecklenburg Swim Association | 01/23/2026 | 2026 TEAM Arena Western Open Copied | |
| 1926 | Thiago Fragale | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Lone Star Aquatic Club | 02/06/2026 | 2026 ST AQTX STX Champs North | |
| 1927 | Daniel Lin | 46.67 | 9 | BB Min | A: 42.09 (+4.58s | 9.8%) | Dads Club Swim Team | 02/21/2025 | 2025 Gulf 12 Under Champs (DADS) | |
| 1928 | 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 | |
| 1929 | Zac Chang | 46.67 | 10 | BB Min | A: 42.09 (+4.58s | 9.8%) | Westchester Aquatic Club | 12/11/2025 | 35th Annual Winter Championships | |
| 1930 | 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 | |
| 1931 | John Murray | 46.68 | 10 | BB Min | A: 42.09 (+4.59s | 9.8%) | Greater Lowell Family YMCA | 01/10/2026 | 2026 NE YNS YMCA Eastern MA Districts | |
| 1932 | Greyson Huddleston | 46.69 | 9 | BB Min | A: 42.09 (+4.60s | 9.9%) | Patriot Aquatics | 12/04/2025 | RAFC Winter Classic | |
| 1933 | Owen Ozkul | 46.69 | 9 | BB Min | A: 42.09 (+4.60s | 9.9%) | Empire Swimming | 11/08/2025 | 2025 MR PAC Maria Parmanan Invitational | |
| 1934 | Thomas Shearer | 46.69 | 10 | BB Min | A: 42.09 (+4.60s | 9.9%) | Sailfish | 01/17/2026 | 2026 ST AQTX B Champs North | |
| 1935 | Declan DiFazio | 46.69 | 9 | BB Min | A: 42.09 (+4.60s | 9.9%) | Hydro-sonic Tiburones | 10/25/2025 | 2025 PAC 10 Under RockHopper Penguin Meet | |
| 1936 | Alex Wang | 46.69 | 10 | BB Min | A: 42.09 (+4.60s | 9.9%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 1937 | Grady Seeley | 46.70 | 8 | BB Min | A: 42.09 (+4.61s | 9.9%) | Rockville Montgomery Swim Club | 12/06/2025 | 2025 Reindeer Mini Meet | |
| 1938 | Thomas Mieszczak | 46.70 | 9 | BB Min | A: 42.09 (+4.61s | 9.9%) | Royal Swimming | 12/06/2025 | 2025 26 Super Fast And Furious Prelim Final | |
| 1939 | Mikhail Lagzdin | 46.70 | 8 | BB Min | A: 42.09 (+4.61s | 9.9%) | Olympic Cascade Aquatics | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
| 1940 | Jason Shen | 46.70 | 9 | BB Min | A: 42.09 (+4.61s | 9.9%) | Long Island Aquatic Club | 01/16/2026 | 2026 MR NFS 43rd Annual Dr MLK Jr Invite | |
| 1941 | Elijah White | 46.70 | 10 | BB Min | A: 42.09 (+4.61s | 9.9%) | Fort Collins Area Swim Team | 01/23/2026 | 2026 CO FAST Winter Open | |
| 1942 | Keegan Bertoia | 46.71 | 9 | BB Min | A: 42.09 (+4.62s | 9.9%) | Schertz YMCA Swim Team | 11/22/2025 | 2025 ST NTRO November Invite | |
| 1943 | Elliott Johnson | 46.71 | 9 | BB Min | A: 42.09 (+4.62s | 9.9%) | Bellevue Club Swim Team | 11/22/2025 | 2025 PN November AGI, Div 3 (UPAC) | |
| 1944 | Thomas Balban | 46.71 | 9 | BB Min | A: 42.09 (+4.62s | 9.9%) | Phoenix Aquatic Club | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 1945 | Maxwell Shaw | 46.71 | 9 | BB Min | A: 42.09 (+4.62s | 9.9%) | Bluefish Swim Club | 02/08/2026 | 2026 NE ABF ME February Frolic | |
| 1946 | Shaler Berry | 46.71 | 9 | BB Min | A: 42.09 (+4.62s | 9.9%) | Heartland Swim Assoc | 10/04/2025 | 2025 SI CAST Pentathlon 14 U Copied | |
| 1947 | Carter McGroarty | 46.71 | 8 | BB Min | A: 42.09 (+4.62s | 9.9%) | Nova of Virginia | 01/09/2026 | NOVA New Year S Kick Off | |
| 1948 | Dresden Ramirez | 46.71 | 9 | BB Min | A: 42.09 (+4.62s | 9.9%) | Legacy Aquatics | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 1949 | Jason Johnston | 46.72 | 9 | BB Min | A: 42.09 (+4.63s | 9.9%) | Aberdeen Swim Club | 10/18/2025 | 2025 SD Spooktacular Intrasquad | |
| 1950 | Jonathan Brightwell | 46.72 | 9 | BB Min | A: 42.09 (+4.63s | 9.9%) | Wake Aquatics | 12/13/2025 | 2025 Santa Splash | |
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.