USA Boys 10 & under - 50 Y Back
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 | Dawson Sellers | 41.17 | 9 | BB Min | A: 37.59 (+3.58s | 8.7%) | Fox Swim Club | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 1952 | Mikhail Schensnovich | 41.18 | 10 | BB Min | A: 37.59 (+3.59s | 8.7%) | Rockville Montgomery Swim Club | 01/16/2026 | 2026 RMSC January Intrasquad Meet | |
| 1953 | Benton McNeil | 41.18 | 10 | BB Min | A: 37.59 (+3.59s | 8.7%) | Midland Dolphins | 03/07/2026 | 2026 Lake Huron Regional Meet | |
| 1954 | Samuel Callister | 41.18 | 10 | BB Min | A: 37.59 (+3.59s | 8.7%) | Unattached | 09/05/2026 | 2026 Garrett S Midnight Madness | |
| 1955 | Jacob Ramos | 41.18 | 10 | BB Min | A: 37.59 (+3.59s | 8.7%) | Tac Titans | 07/31/2026 | 2026 TAC TITANS Summer Sizzler | |
| 1956 | Avyan Bajpai | 41.18 | 10 | BB Min | A: 37.59 (+3.59s | 8.7%) | Hillsboro Swim Team | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1957 | Anderson Fang | 41.18 | 9 | BB Min | A: 37.59 (+3.59s | 8.7%) | Reno Aquatic Club | 07/31/2026 | 2026 High Country Short Course Championship | |
| 1958 | Jet Johnson | 41.19 | 10 | BB Min | A: 37.59 (+3.60s | 8.7%) | Tnt Swimming | 10/02/2026 | 2026 Vance Rose Invitational | |
| 1959 | Vincent Martino | 41.19 | 9 | BB Min | A: 37.59 (+3.60s | 8.7%) | Piranhas YMCA of the Suncoast | 12/05/2025 | 2025 Speedo Gator Holiday Classic | |
| 1960 | Hugo Pace | 41.19 | 10 | BB Min | A: 37.59 (+3.60s | 8.7%) | Pacifica Sea Lions | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 1961 | Lok Zhang | 41.19 | 10 | BB Min | A: 37.59 (+3.60s | 8.7%) | Bellevue Club Swim Team | 10/03/2026 | 2026 PN CSC Fall Classic Invitational Approve | |
| 1962 | George Ingalls | 41.20 | 10 | BB Min | A: 37.59 (+3.61s | 8.8%) | Eagle Swim Team Inc. | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 1963 | Wyatt Neville | 41.20 | 9 | BB Min | A: 37.59 (+3.61s | 8.8%) | Seahawks Swim club | 09/12/2026 | 2026 Seahawks Dive Back In | |
| 1964 | Oliver Ng | 41.20 | 10 | BB Min | A: 37.59 (+3.61s | 8.8%) | Life Time Oregon Swim Team | 09/26/2026 | FGSC 2026 Season Opener Pentathlon | |
| 1965 | Bryce Taylor | 41.21 | 9 | BB Min | A: 37.59 (+3.62s | 8.8%) | Sandy | 02/13/2026 | 2026 OR HS 6A 4 | |
| 1966 | Reed Davis | 41.21 | 10 | BB Min | A: 37.59 (+3.62s | 8.8%) | 92ny Flying Dolphins | 12/11/2025 | 2025 NE SHAWMUT Candy Cane Classic | |
| 1967 | Albert Frolov | 41.21 | 9 | BB Min | A: 37.59 (+3.62s | 8.8%) | Bravo Swim Team | 02/14/2026 | NMST BMHG February BC Invite 26 | |
| 1968 | Benjamin Khotsin | 41.21 | 9 | BB Min | A: 37.59 (+3.62s | 8.8%) | Sarasota Sharks | 07/25/2026 | 2026 Summer Area 5 Championship | |
| 1969 | Dylan Jablonski | 41.21 | 8 | BB Min | A: 37.59 (+3.62s | 8.8%) | Swim Fort Lauderdale | 10/02/2026 | 2026 Speedo SOFLO Distance Challenge | |
| 1970 | Owen Melin | 41.21 | 9 | BB Min | A: 37.59 (+3.62s | 8.8%) | Swim Fort Lauderdale | 02/20/2026 | 2026 FG SCY BB Championships (NORTH) | |
| 1971 | Nicolas Rodriguez | 41.22 | 7 | BB Min | A: 37.59 (+3.63s | 8.8%) | Arlington Aquatic Club | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 1972 | August Speziale | 41.22 | 10 | BB Min | A: 37.59 (+3.63s | 8.8%) | Great Lakes Sailfish Swimming | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1973 | Ruslan Kalinnikov | 41.22 | 8 | BB Min | A: 37.59 (+3.63s | 8.8%) | Olympus Aquatics | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
| 1974 | Connor Chiang | 41.22 | 10 | BB Min | A: 37.59 (+3.63s | 8.8%) | West Coast Aquatics | 02/27/2026 | 2026 PN Feb Age Group Invite,Div 3 Approved | |
| 1975 | Wyatt Kryzak | 41.23 | 10 | BB Min | A: 37.59 (+3.64s | 8.8%) | Long Reach Swim Club | 02/27/2026 | 2026 NE Maine State Y Championships | |
| 1976 | Jordan Kang | 41.23 | 9 | BB Min | A: 37.59 (+3.64s | 8.8%) | Scarlet Aquatics | 01/03/2026 | 2026 TYR Winterfest | |
| 1977 | Mars Tremblay | 41.23 | 10 | BB Min | A: 37.59 (+3.64s | 8.8%) | North Baltimore Aquatic Club | 11/14/2025 | 2025 NBAC Thanksgiving Meet | |
| 1978 | Jason Yin | 41.23 | 9 | BB Min | A: 37.59 (+3.64s | 8.8%) | Unattached | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 1979 | Gavin Yang | 41.23 | 10 | BB Min | A: 37.59 (+3.64s | 8.8%) | Alto Swim Club | 10/24/2026 | BAC SPOOKY FALL CLASSIC | |
| 1980 | Brian Higgins | 41.24 | 9 | BB Min | A: 37.59 (+3.65s | 8.9%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1981 | Aaden Foster | 41.24 | 10 | BB Min | A: 37.59 (+3.65s | 8.9%) | Denver Swim Academy | 03/06/2026 | 2026 CO 14 U Silver State | |
| 1982 | Benjamin Foster | 41.24 | 9 | BB Min | A: 37.59 (+3.65s | 8.9%) | Neptune Swimming | 10/03/2026 | Neptune Swimming Fall Classic | |
| 1983 | Colin Morrison | 41.24 | 10 | BB Min | A: 37.59 (+3.65s | 8.9%) | Parkway-Rockwood Gateway Swim | 09/19/2026 | 2026 RCA Fall Classic | |
| 1984 | Barrett Wright | 41.24 | 9 | BB Min | A: 37.59 (+3.65s | 8.9%) | North Coast Aquatics | 10/17/2026 | 2026 SI RSD All Ages NTS Meet | |
| 1985 | Thiago Ronda | 41.24 | 8 | BB Min | A: 37.59 (+3.65s | 8.9%) | Swim Florida | 10/16/2026 | 2026 T2 Spooktacular | |
| 1986 | Jonah Densberger | 41.25 | 10 | BB Min | A: 37.59 (+3.66s | 8.9%) | Blue Dolfins | 09/12/2026 | 2026 Elizabeth Kazeck Fall Sprint | |
| 1987 | James Bourgeois | 41.26 | 9 | BB Min | A: 37.59 (+3.67s | 8.9%) | North Shore Swim Club | 01/30/2026 | 2026 NE GS Silver Championships | |
| 1988 | Noah Odom | 41.26 | 9 | BB Min | A: 37.59 (+3.67s | 8.9%) | Greater Pensacola Aquatic Club | 01/16/2026 | 2026 GPAC Winter Invitational | |
| 1989 | Hantian You | 41.26 | 10 | BB Min | A: 37.59 (+3.67s | 8.9%) | Lake Oswego Swim Club | 05/09/2026 | 2026 Spring Sprinter Invitational | |
| 1990 | Klayton Kutzke | 41.26 | 10 | BB Min | A: 37.59 (+3.67s | 8.9%) | Swim Florida | 09/19/2026 | 2026 GCST FALL OPEN | |
| 1991 | Hunter Li | 41.27 | 9 | BB Min | A: 37.59 (+3.68s | 8.9%) | All Star Aquatics | 02/13/2026 | 2026 ASA President S Day Classic | |
| 1992 | Marc Villa | 41.27 | 10 | BB Min | A: 37.59 (+3.68s | 8.9%) | Bgc-N. Westchester Marlins | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 1993 | Nicholas Tetley | 41.27 | 10 | BB Min | A: 37.59 (+3.68s | 8.9%) | Metro Area Life Time | 02/21/2026 | CAT 12 Under Silver Bronze Champs Region A | |
| 1994 | Randell Espinal | 41.28 | 10 | BB Min | A: 37.59 (+3.69s | 8.9%) | Kips Bay Makos | 02/20/2026 | 2026 MR Metro Silver Central Champs WEST | |
| 1995 | Owen Cianciolo | 41.28 | 9 | BB Min | A: 37.59 (+3.69s | 8.9%) | Marlins Of Raleigh | 01/16/2026 | 2026 RSA Winter Tri | |
| 1996 | Cooper Ferrell | 41.28 | 10 | BB Min | A: 37.59 (+3.69s | 8.9%) | Triton Swimming of Louisville | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1997 | Timothy Riley | 41.28 | 10 | BB Min | A: 37.59 (+3.69s | 8.9%) | Princeton Tiger Aquatic Club | 01/10/2026 | 2026 PTAC Tiger Invitational | |
| 1998 | Zachary Bryan | 41.28 | 9 | BB Min | A: 37.59 (+3.69s | 8.9%) | Raleigh Swimming Association | 02/14/2026 | 2026 CAT Valentine Splash | |
| 1999 | Adam Kirk | 41.28 | 10 | BB Min | A: 37.59 (+3.69s | 8.9%) | Palo Alto Stanford Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 2000 | Aaron Wang | 41.29 | 9 | BB Min | A: 37.59 (+3.70s | 9.0%) | Brea Aquatics | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
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.