USA Boys 10 & under - 50 M Free
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 701 | Andrew DiPaulo | 42.02 | 9 | B Min | BB: 39.79 (+2.23s | 5.3%) | Denver Athletic Club Swim Team | 04/25/2025 | 2025 CO TOPS Arena Catch Me If You Can | |
| 702 | Bennett Kohlmeyer | 42.03 | 10 | B Min | BB: 39.79 (+2.24s | 5.3%) | Life Time Colorado Swim Club | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 703 | Sterling Hansen | 42.03 | 10 | B Min | BB: 39.79 (+2.24s | 5.3%) | Brighton Bullfrogs Swim Club | 05/30/2025 | 2025 CO Barracuda Summer Sizzler Invite | |
| 704 | John Calhoun | 42.03 | 10 | B Min | BB: 39.79 (+2.24s | 5.3%) | Nova of Virginia | 05/17/2024 | Freedom Splash | |
| 705 | Leon Yan | 42.08 | 9 | B Min | BB: 39.79 (+2.29s | 5.4%) | Waterloo Swimming | 06/22/2025 | 2025 ST WLOO LC Last Chance | |
| 706 | Jercey Zhao | 42.11 | 10 | B Min | BB: 39.79 (+2.32s | 5.5%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 707 | John Griswold | 42.12 | 10 | B Min | BB: 39.79 (+2.33s | 5.5%) | Alameda Gators | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 708 | William MacPhail | 42.14 | 9 | B Min | BB: 39.79 (+2.35s | 5.6%) | Edina Swim Club | 05/03/2025 | 2025 MN RSC Pentathlon | |
| 709 | Aaron Kim | 42.14 | 10 | B Min | BB: 39.79 (+2.35s | 5.6%) | EL Paso Border Land Swim Team | 06/28/2024 | 2024 EPAP Jack White Classic | |
| 710 | Isaac Tang | 42.15 | 10 | B Min | BB: 39.79 (+2.36s | 5.6%) | Longhorn Aquatics | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 711 | Drew DeSautel | 42.16 | 8 | B Min | BB: 39.79 (+2.37s | 5.6%) | West Express Swim Team | 06/20/2025 | 2025 MN MAN Red White Blue Invite | |
| 712 | Asher Snead | 42.17 | 9 | B Min | BB: 39.79 (+2.38s | 5.6%) | Poseidon Swimming Inc | 06/27/2024 | NOVA Firecracker Classic | |
| 713 | Jacob Gamio | 42.17 | 9 | B Min | BB: 39.79 (+2.38s | 5.6%) | Alamo Area Aquatic Association | 04/11/2025 | 2025 ST AAAA NS Spring Into Long Course | |
| 714 | Calvin Butler | 42.18 | 9 | B Min | BB: 39.79 (+2.39s | 5.7%) | California Gold | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 715 | Bo Bamford | 42.18 | 9 | B Min | BB: 39.79 (+2.39s | 5.7%) | Portland Aquatic Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 716 | Symon Kartsev | 42.18 | 10 | B Min | BB: 39.79 (+2.39s | 5.7%) | Sailfish | 04/05/2025 | 2025 ST TXLA 10 U Long Course Kick Off | |
| 717 | Damon Sparling | 42.18 | 9 | B Min | BB: 39.79 (+2.39s | 5.7%) | Edina Swim Club | 06/26/2025 | 2025 MN AQJT Aquajets Summer Spectacular | |
| 718 | Levi Cheung | 42.21 | 8 | B Min | BB: 39.79 (+2.42s | 5.7%) | Beaverton Area Aquatics Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 719 | David Rivera | 42.21 | 10 | B Min | BB: 39.79 (+2.42s | 5.7%) | Almaden Riptide | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 720 | Sam Mancenido | 42.24 | 10 | B Min | BB: 39.79 (+2.45s | 5.8%) | Dart Swimming | 06/21/2024 | Reno Aquatic Club Gamble | |
| 721 | Brooks Noblett | 42.24 | 10 | B Min | BB: 39.79 (+2.45s | 5.8%) | Westlake Aquatic Facility | 04/05/2025 | 2025 ST TXLA 10 U Long Course Kick Off | |
| 722 | Bennett Gregory | 42.24 | 10 | B Min | BB: 39.79 (+2.45s | 5.8%) | YMCA of Austin Swim Alliance | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 723 | Luke Xu | 42.24 | 10 | B Min | BB: 39.79 (+2.45s | 5.8%) | California Dolphins Swim Team | 06/20/2025 | Zone 2 Last Chance To AG Champs | |
| 724 | Dale Joyce | 42.24 | 10 | B Min | BB: 39.79 (+2.45s | 5.8%) | Puget Sound Swim Club | 06/20/2025 | 2025 IE VS Starlight Open | |
| 725 | Anthony Fuentes | 42.26 | 10 | B Min | BB: 39.79 (+2.47s | 5.8%) | T2 Aquatics | 06/21/2025 | 2025 T2 June Saturday Showcase | |
| 726 | Ford Howard | 42.26 | 10 | B Min | BB: 39.79 (+2.47s | 5.8%) | Blue Dragons Swim Team | 05/02/2025 | 2025 AAA May LC Invitational | |
| 727 | Bradley Royce | 42.27 | 9 | B Min | BB: 39.79 (+2.48s | 5.9%) | Highlands Ranch Aquatics | 06/19/2025 | 2025 CO ACES Summer Invite | |
| 728 | Tristan Keough | 42.27 | 10 | B Min | BB: 39.79 (+2.48s | 5.9%) | YMCA of the Triangle Area Swim | 06/14/2024 | SwimRVA Summer Invitational | |
| 729 | Sebastian Monroy Reyes | 42.27 | 10 | B Min | BB: 39.79 (+2.48s | 5.9%) | Sunnyvale Swim Club | 06/06/2025 | 2025 DACA LC CBA+ Meet | |
| 730 | Artemii Ilchenko | 42.28 | 9 | B Min | BB: 39.79 (+2.49s | 5.9%) | San Antonio Wave | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 731 | Abraham Polisuk | 42.29 | 10 | B Min | BB: 39.79 (+2.50s | 5.9%) | Gator Swim Club | 06/06/2025 | 2025 MAKOS Summer Splash | |
| 732 | Dax Nisenbaum | 42.30 | 10 | B Min | BB: 39.79 (+2.51s | 5.9%) | Hills Hurricane Swimming | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 733 | Jose Ramos Morales | 42.30 | 9 | B Min | BB: 39.79 (+2.51s | 5.9%) | Denver Triton Swim Team | 07/11/2025 | 2025 CO NJ Firecracker Invite | |
| 734 | Jesper Zhang | 42.31 | 10 | B Min | BB: 39.79 (+2.52s | 6.0%) | Sandpipers of Nevada | 03/30/2025 | Sand Vs BCH LCM Dual 2025 | |
| 735 | Gianpaolo Pirraglia | 42.31 | 10 | B Min | BB: 39.79 (+2.52s | 6.0%) | Swim Florida | 04/11/2025 | 2025 GCST Spring Invite | |
| 736 | Xavier Kallus | 42.32 | 10 | B Min | BB: 39.79 (+2.53s | 6.0%) | Victoria Texas Aquatic Club | 05/16/2025 | 2025 ST AAAA NS Salute To The Troops | |
| 737 | Davis Chappell | 42.32 | 9 | B Min | BB: 39.79 (+2.53s | 6.0%) | Hampton Virginia Current | 05/31/2024 | 2024 Virginia Commonwealth Games | |
| 738 | Ethan Ramon | 42.33 | 10 | B Min | BB: 39.79 (+2.54s | 6.0%) | Nitro Swimming | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 739 | Elijah Wieczorek | 42.33 | 10 | B Min | BB: 39.79 (+2.54s | 6.0%) | Canon City Piranhas | 06/27/2025 | 2025 CO Alicia Leavitt Memorial Open | |
| 740 | Nathanael Richards | 42.33 | 9 | B Min | BB: 39.79 (+2.54s | 6.0%) | Coeur D\\\\\\'alene Area Swim Team | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 741 | Carter Milroy | 42.34 | 10 | B Min | BB: 39.79 (+2.55s | 6.0%) | Foothills Swim Team | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 742 | Penghao Yu | 42.34 | 10 | B Min | BB: 39.79 (+2.55s | 6.0%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 743 | Shane Kirk | 42.35 | 8 | B Min | BB: 39.79 (+2.56s | 6.0%) | Bolles School Sharks | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 744 | Camden Kern | 42.35 | 10 | B Min | BB: 39.79 (+2.56s | 6.0%) | Cavalier Aquatics/Piedmont Fam | 04/26/2024 | 2024 Helen Wang Sunflower Classic | |
| 745 | Brendan Stork | 42.35 | 10 | B Min | BB: 39.79 (+2.56s | 6.0%) | Clovis Swim Club | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 746 | Luca Desset | 42.36 | 10 | B Min | BB: 39.79 (+2.57s | 6.1%) | Unattached | 06/20/2025 | 72nd Annual Ted Walker Invitational | |
| 747 | Owen Zhuang | 42.36 | 10 | B Min | BB: 39.79 (+2.57s | 6.1%) | Santa Clara Swim Club | 07/20/2024 | Alto Last Splash Invitational | |
| 748 | Lok Zhang | 42.37 | 10 | B Min | BB: 39.79 (+2.58s | 6.1%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 749 | Simon Stapley | 42.37 | 10 | B Min | BB: 39.79 (+2.58s | 6.1%) | Olympus Aquatics | 06/27/2025 | 2nd Annual Water Dragon Open | |
| 750 | Kyle Hargenrader | 42.39 | 9 | B Min | BB: 39.79 (+2.60s | 6.1%) | Steel City Aquatics | 06/12/2025 | Holtrey Summer Classic | |
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.