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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1001 | Evan Johnson | 38.64 | 9 | BB Min | A: 37.59 (+1.05s | 2.7%) | Bolles School Sharks | 07/05/2026 | 2026 July Last Chance Meet | |
| 1002 | Easton Minervini | 38.65 | 10 | BB Min | A: 37.59 (+1.06s | 2.7%) | Southwest Stars Swim Club | 10/09/2026 | 2026 FAST Pumpkin Plunge | |
| 1003 | Enzo Lourenco | 38.65 | 9 | BB Min | A: 37.59 (+1.06s | 2.7%) | McCallie-GPS Aquatics | 09/26/2026 | 2026 Fall Kickoff Classic Inviational | |
| 1004 | Timothey Miley | 38.66 | 10 | BB Min | A: 37.59 (+1.07s | 2.8%) | Anacortes | 02/20/2026 | 2026 WIAA 2A Boys HS State Champs OB | |
| 1005 | Kyle Yun-Choi | 38.66 | 9 | BB Min | A: 37.59 (+1.07s | 2.8%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1006 | Parker Ng | 38.66 | 8 | BB Min | A: 37.59 (+1.07s | 2.8%) | Commonwealth Swimming | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1007 | Callan Bunyan | 38.66 | 9 | BB Min | A: 37.59 (+1.07s | 2.8%) | Southwest Stars Swim Club | 10/09/2026 | 2026 FAST Pumpkin Plunge | |
| 1008 | Henry Astry | 38.67 | 8 | BB Min | A: 37.59 (+1.08s | 2.8%) | West Express Swim Team | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 1009 | Deniz Yesilcimen | 38.67 | 10 | BB Min | A: 37.59 (+1.08s | 2.8%) | Scarlet Aquatics | 02/07/2026 | 2026 Scarlet IMX Superbowl | |
| 1010 | Edward Harris | 38.68 | 8 | BB Min | A: 37.59 (+1.09s | 2.8%) | Long Island Aquatic Club | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 1011 | Jayden Lai | 38.68 | 9 | BB Min | A: 37.59 (+1.09s | 2.8%) | Csp Tideriders | 02/27/2026 | Ozark Division I Championship | |
| 1012 | William Curran | 38.68 | 9 | BB Min | A: 37.59 (+1.09s | 2.8%) | Revolution Swim Club | 03/13/2026 | 2026 NE INST NE Cup | |
| 1013 | Ben Reece | 38.69 | 10 | BB Min | A: 37.59 (+1.10s | 2.8%) | Gleason Family YMCA | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 1014 | Timothy Batanov | 38.69 | 10 | BB Min | A: 37.59 (+1.10s | 2.8%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 1015 | James Goodwillie | 38.69 | 10 | BB Min | A: 37.59 (+1.10s | 2.8%) | Hanover Aquatics | 01/17/2026 | 2026 Duck Bowl | |
| 1016 | Isaac Zhang | 38.69 | 9 | BB Min | A: 37.59 (+1.10s | 2.8%) | First Colony Swim Team, Inc. | 01/31/2025 | 2025 Fleet Mardi Gras | |
| 1017 | William Johnson | 38.69 | 9 | BB Min | A: 37.59 (+1.10s | 2.8%) | Swim Florida | 02/21/2026 | CCS Last Chance Meet Feb 2026 | |
| 1018 | Martin Li | 38.69 | 10 | BB Min | A: 37.59 (+1.10s | 2.8%) | Wave Aquatics | 10/03/2026 | 2026 PN Wave Rocktober Invitational Approved | |
| 1019 | Phillippe Choi | 38.70 | 10 | BB Min | A: 37.59 (+1.11s | 2.9%) | Blast Sharks | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 1020 | Jayden Lu | 38.70 | 9 | BB Min | A: 37.59 (+1.11s | 2.9%) | Charles River Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 1021 | Marco Gonzalez | 38.70 | 10 | BB Min | A: 37.59 (+1.11s | 2.9%) | South Bay Aquatics | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 1022 | Thomas Doyle | 38.70 | 8 | BB Min | A: 37.59 (+1.11s | 2.9%) | Csp Tideriders | 10/09/2026 | Fall Festival Invitational | |
| 1023 | Rylan Brill | 38.70 | 10 | BB Min | A: 37.59 (+1.11s | 2.9%) | CAC Stingrays Swim Team | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 1024 | Jimmie Jones | 38.71 | 9 | BB Min | A: 37.59 (+1.12s | 2.9%) | Razor Aquatics | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 1025 | Vincent Nan | 38.71 | 10 | BB Min | A: 37.59 (+1.12s | 2.9%) | Seattle Metropolitan Aquatic C | 10/10/2026 | 2026 PN SMAC Fall Kick Off Approved | |
| 1026 | Joaquin Garcia | 38.71 | 10 | BB Min | A: 37.59 (+1.12s | 2.9%) | Unattached | 09/26/2026 | 2026 CO Gregg Gracheck Memorial | |
| 1027 | River Narus | 38.72 | 8 | BB Min | A: 37.59 (+1.13s | 2.9%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 1028 | Thomas Nicely | 38.72 | 10 | BB Min | A: 37.59 (+1.13s | 2.9%) | Spartan Aquatic Club | 01/16/2026 | 2026 SE Ralph Crocker Classic | |
| 1029 | River Briscoe | 38.72 | 10 | BB Min | A: 37.59 (+1.13s | 2.9%) | Madison Swimming Association | 02/06/2026 | 2026 SES Region 3 Champions | |
| 1030 | Adrian Pasagic | 38.73 | 10 | BB Min | A: 37.59 (+1.14s | 2.9%) | Sporting Jax Aquatic Club | 09/13/2026 | 2026 September Splash | |
| 1031 | Hengrui Cao | 38.73 | 10 | BB Min | A: 37.59 (+1.14s | 2.9%) | Saline Swim Team | 02/06/2026 | SST Snowstorm Splash | |
| 1032 | Noah Monick | 38.74 | 10 | BB Min | A: 37.59 (+1.15s | 3.0%) | Middies Wave Ryders | 02/20/2026 | 2026 MR Silvers North Championship YMID | |
| 1033 | Aiden Mulcahy | 38.75 | 10 | BB Min | A: 37.59 (+1.16s | 3.0%) | Aulea Swim Club | 10/02/2026 | 2026 HI Al Minn Invitational | |
| 1034 | Michael Naraguma | 38.75 | 10 | BB Min | A: 37.59 (+1.16s | 3.0%) | Life Time Swim Team - Central | 10/18/2026 | 2026 ST TXLA 10 U Fall Kick Off Invite | |
| 1035 | Leo Gazzard | 38.75 | 9 | BB Min | A: 37.59 (+1.16s | 3.0%) | Bellevue Club Swim Team | 02/27/2026 | 2026 PN Feb Age Group Invite,Div 3 Approved | |
| 1036 | Finn Scott | 38.76 | 10 | BB Min | A: 37.59 (+1.17s | 3.0%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 1037 | Samuel Ramon | 38.76 | 10 | BB Min | A: 37.59 (+1.17s | 3.0%) | The Fish | 02/13/2026 | 2026 ASA President S Day Classic | |
| 1038 | Christian Matyja | 38.77 | 10 | BB Min | A: 37.59 (+1.18s | 3.0%) | Utica Shelby Swim Club | 02/27/2026 | 2026 Junior Cup | |
| 1039 | Calvin Tonk | 38.77 | 10 | BB Min | A: 37.59 (+1.18s | 3.0%) | Benton Harbor-St. Joseph YMCA | 03/07/2026 | 2026 Michigan YMCA State Championship | |
| 1040 | Lucas Nguyen | 38.77 | 10 | BB Min | A: 37.59 (+1.18s | 3.0%) | Valley Splash | 10/03/2026 | Quicksilver Santa Cruz Competencia 2026 | |
| 1041 | Brandon Son | 38.78 | 9 | BB Min | A: 37.59 (+1.19s | 3.1%) | Columbia River Swim Team | 10/10/2026 | LA Fall Kick Off 2026 | |
| 1042 | Henry Luevano | 38.78 | 9 | BB Min | A: 37.59 (+1.19s | 3.1%) | Aces Swim Club | 03/06/2026 | 2026 CO 14 U Silver State | |
| 1043 | Ethan Baker | 38.79 | 10 | BB Min | A: 37.59 (+1.20s | 3.1%) | Quest Swimming | 11/15/2025 | 2025 WAC Fall Classic | |
| 1044 | Marco Hines | 38.79 | 10 | BB Min | A: 37.59 (+1.20s | 3.1%) | Southwest Aquatic Team | 02/27/2026 | 2026 BD SCY Border Champs | |
| 1045 | Nicholas Brumaru | 38.79 | 10 | BB Min | A: 37.59 (+1.20s | 3.1%) | Olympic Cascade Aquatics | 10/03/2026 | 2026 PN OCA John Walker Invitational Approve | |
| 1046 | Peter Pan | 38.80 | 9 | BB Min | A: 37.59 (+1.21s | 3.1%) | Irvine Novaquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 1047 | Andrew Li | 38.80 | 9 | BB Min | A: 37.59 (+1.21s | 3.1%) | Crimson Aquatics | 07/30/2026 | 2026 NE CRA Prelim Final SCY Meet | |
| 1048 | Joseph Proffitt | 38.80 | 10 | BB Min | A: 37.59 (+1.21s | 3.1%) | Nova of Virginia | 03/21/2026 | NOVA Short Course Send Off 2026 | |
| 1049 | Lucas Jiang | 38.80 | 10 | BB Min | A: 37.59 (+1.21s | 3.1%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 1050 | Chayton Zhou | 38.80 | 9 | BB Min | A: 37.59 (+1.21s | 3.1%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
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.