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 | |
|---|---|---|---|---|---|---|---|---|---|
| 5851 | Eric Chow | 48.56 | 9 | B: 48.29 (+0.27s | 0.6%) | Quince Orchard Swim Academy | 03/20/2026 | 2026 RMSC Spring Finale | ||
| 5852 | Finley Oelke | 48.56 | 10 | B: 48.29 (+0.27s | 0.6%) | Fmy Gators | 12/05/2025 | 2025 Candy Cane Swim Meet | ||
| 5853 | William Arteaga | 48.56 | 8 | B: 48.29 (+0.27s | 0.6%) | Excel Aquatics | 10/23/2026 | 2026 Pumpkin Spice Splash | ||
| 5854 | David Vaynshteyn | 48.57 | 10 | B: 48.29 (+0.28s | 0.6%) | Jcc Sea Serpents | 06/13/2026 | 2026 NE JCCS Marblehead Light | ||
| 5855 | Zayden Robles | 48.57 | 10 | B: 48.29 (+0.28s | 0.6%) | Capital Area Aquatics | 09/18/2026 | 2026 ST AQTX Round Rock Unclassified | ||
| 5856 | Tobias Paras | 48.57 | 10 | B: 48.29 (+0.28s | 0.6%) | Lakewood Ranch Swim Associatio | 01/23/2026 | 2026 Hot Chocolate Invite | ||
| 5857 | Lucas Alfonso | 48.57 | 10 | B: 48.29 (+0.28s | 0.6%) | Metro Aquatic Club of Miami | 10/10/2026 | NMST BMHG October Invite 26 | ||
| 5858 | Ethan Pasos | 48.58 | 9 | B: 48.29 (+0.29s | 0.6%) | San Gabriel Aquatics | 07/18/2026 | 2026 SGA Gold Rush | ||
| 5859 | Christian Baldie | 48.58 | 8 | B: 48.29 (+0.29s | 0.6%) | South Florida Aquatic Club | 04/18/2026 | SoFlo 12 Under Spring Invitational | ||
| 5860 | Noah Hauck | 48.58 | 10 | B: 48.29 (+0.29s | 0.6%) | Foxjets Swim Team | 02/27/2026 | 2026 MN EDI Minnesota Regional Championship | ||
| 5861 | Benjamin Disori | 48.58 | 10 | B: 48.29 (+0.29s | 0.6%) | St Croix Swim Club | 02/21/2026 | 2026 MN NOR MN Bronze Championship Copied | ||
| 5862 | Henry Choi | 48.58 | 9 | B: 48.29 (+0.29s | 0.6%) | Olympic Cascade Aquatics | 10/16/2026 | 2026 PN VAST Fall Classic Invite Approved | ||
| 5863 | Lucas Chan | 48.58 | 9 | B: 48.29 (+0.29s | 0.6%) | Olympic Cascade Aquatics | 10/16/2026 | 2026 PN VAST Fall Classic Invite Approved | ||
| 5864 | Hyuga Tanaka | 48.59 | 9 | B: 48.29 (+0.30s | 0.6%) | Atlantis Swimming | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | ||
| 5865 | Leo Collar | 48.59 | 9 | B: 48.29 (+0.30s | 0.6%) | Hurricane Penguins Swim Club | 02/28/2026 | 2026 Last Chance Meet | ||
| 5866 | John Guilmette | 48.59 | 10 | B: 48.29 (+0.30s | 0.6%) | Rapids Swim Team | 12/05/2025 | 2025 NE UVAC Winter Classic | ||
| 5867 | Matthew Nguyen | 48.59 | 9 | B: 48.29 (+0.30s | 0.6%) | Arctic Aquatics | 05/01/2026 | 2026 NE ARCT Spring Specialty Meet | ||
| 5868 | Anders Cai | 48.59 | 10 | B: 48.29 (+0.30s | 0.6%) | Mission Valley YMCA | 07/10/2026 | 2026 SI SBA All Ages Last Chance Meet | ||
| 5869 | Dorian Xie | 48.59 | 8 | B: 48.29 (+0.30s | 0.6%) | Tualatin Hills Swim Club | 10/23/2026 | 2026 THSC Fall Invitational | ||
| 5870 | Jesse Kimbler | 48.60 | 8 | B: 48.29 (+0.31s | 0.6%) | Mason Makos Swim Team | 01/10/2026 | 2026 MAKO POLAR PLUNGE | ||
| 5871 | Sawyer Moore | 48.60 | 9 | B: 48.29 (+0.31s | 0.6%) | Mecklenburg Swim Association | 12/12/2025 | 2025 NC QCD Holiday Invite | ||
| 5872 | Nathaniel Leong | 48.60 | 9 | B: 48.29 (+0.31s | 0.6%) | Rockville Montgomery Swim Club | 01/16/2026 | 2026 RMSC January Intrasquad Meet | ||
| 5873 | Decker Glaspey | 48.60 | 8 | B: 48.29 (+0.31s | 0.6%) | Clovis Swim Club | 01/10/2026 | 2026 Clovis Swim Club Winter Open | ||
| 5874 | Ivan Osegueda | 48.60 | 9 | B: 48.29 (+0.31s | 0.6%) | YMCA of Austin Swim Alliance | 02/28/2026 | 2026 ST SCY Surge Marsh Madness | ||
| 5875 | Liam Baca | 48.60 | 8 | B: 48.29 (+0.31s | 0.6%) | Blue Tide Aquatics | 11/02/2024 | 2024 ShAC 14 Under Meet | ||
| 5876 | Theodore Daines | 48.60 | 10 | B: 48.29 (+0.31s | 0.6%) | Olympus Aquatics | 11/07/2024 | 2024 OA Thanksgiving Turkey Meet | ||
| 5877 | Isaiah Sauve | 48.60 | 9 | B: 48.29 (+0.31s | 0.6%) | Saint Petersburg Aquatics | 10/02/2026 | SAINT PETE AQUATICS FRI NITE RACE OCT 2 2026 | ||
| 5878 | Aiden Yin | 48.60 | 9 | B: 48.29 (+0.31s | 0.6%) | Seattle Metropolitan Aquatic C | 10/10/2026 | 2026 PN SMAC Fall Kick Off Approved | ||
| 5879 | Hayes Walton | 48.60 | 8 | B: 48.29 (+0.31s | 0.6%) | Huntsville Swim Association | 09/26/2026 | 2026 Ricky Hui Meet | ||
| 5880 | Zhiyi Ma | 48.60 | 10 | B: 48.29 (+0.31s | 0.6%) | White Water | 01/10/2026 | 2026 PTAC Tiger Invitational | ||
| 5881 | Henrik Person | 48.61 | 10 | B: 48.29 (+0.32s | 0.7%) | Millard Aquatic Club | 02/20/2026 | 2026 MW Midwestern Age Group Short Course | ||
| 5882 | Hayden Hammack | 48.61 | 10 | B: 48.29 (+0.32s | 0.7%) | Surge Aquatics | 09/27/2025 | 2025 ST SRG September Kick Off | ||
| 5883 | Kyle Wu | 48.61 | 8 | B: 48.29 (+0.32s | 0.7%) | Prince William Swim Club | 11/08/2025 | 2025 PWSC Fall Aqua Fest | ||
| 5884 | Liam Vasquez | 48.62 | 9 | B: 48.29 (+0.33s | 0.7%) | Apex Swim Club | 03/27/2026 | 2026 MR Bronze Championships Central KBM | ||
| 5885 | Daniel Ferris | 48.63 | 9 | B: 48.29 (+0.34s | 0.7%) | Crimson Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | ||
| 5886 | Lane Arias | 48.63 | 8 | B: 48.29 (+0.34s | 0.7%) | Ridgefield Aquatic Club | 04/10/2026 | 2026 GTSA TYR Spring Championship | ||
| 5887 | Connor Gui | 48.63 | 10 | B: 48.29 (+0.34s | 0.7%) | 92ny Flying Dolphins | 01/16/2026 | 2026 MR LIE Winterfest Invitational | ||
| 5888 | Gabriel DaSilva | 48.63 | 9 | B: 48.29 (+0.34s | 0.7%) | Arena Club Aquatics | 12/21/2025 | The Grinch Stole My Times (9 O BB Slowe) 2025 | ||
| 5889 | Maverick Marchant | 48.63 | 9 | B: 48.29 (+0.34s | 0.7%) | YMCA of Austin Swim Alliance | 12/15/2024 | 2024 ST YMCA Swim Y All Jingle Bell Splash | ||
| 5890 | Henry Johnson | 48.63 | 10 | B: 48.29 (+0.34s | 0.7%) | Milford Area Swim Team | 10/23/2026 | 2026 CLPR Halloween Meet | ||
| 5891 | Evan Hu | 48.63 | 9 | B: 48.29 (+0.34s | 0.7%) | Csp Tideriders | 10/24/2026 | 2026 METS Splash Of The Titans Copied | ||
| 5892 | Kelvin Su | 48.64 | 10 | B: 38.49 (+10.15s | 20.9%) | Long Island Aquatic Club | 03/27/2026 | 2026 MR Bronze Championship South LIE | ||
| 5893 | Noah Silverstein | 48.64 | 9 | B: 48.29 (+0.35s | 0.7%) | Hydro-sonic Tiburones | 01/17/2026 | PVS January Open 2026 Fairland | ||
| 5894 | Holden Sitterson | 48.64 | 9 | B: 48.29 (+0.35s | 0.7%) | SwimRVA | 03/20/2026 | 2026 SwimRVA Clover Cup | ||
| 5895 | Nathanial Long | 48.64 | 9 | B: 48.29 (+0.35s | 0.7%) | O\\\\\\'Neal Aquatics | 01/10/2026 | 2026 RMY Winter Invitational | ||
| 5896 | Henry Beilstein | 48.64 | 9 | B: 48.29 (+0.35s | 0.7%) | New Rochelle YMCA Sailfish Swi | 10/10/2025 | 2025 MR COND October Fall Festival | ||
| 5897 | Raunak Bagga | 48.64 | 9 | B: 48.29 (+0.35s | 0.7%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | ||
| 5898 | Calvin Littlejohn | 48.64 | 9 | B: 48.29 (+0.35s | 0.7%) | Eugene City Swim Club | 06/27/2026 | 2026 Eugene City Swim Club Summer Invite | ||
| 5899 | Michael Houser | 48.64 | 8 | B: 48.29 (+0.35s | 0.7%) | Wind N Sea Swim Team | 08/08/2026 | 2026 SI WIND All Ages NTS Wrap Up Meet | ||
| 5900 | Gavin Lowe | 48.64 | 6 | B: 48.29 (+0.35s | 0.7%) | Tri Valley Aquatics | 10/18/2025 | PC SRVA SCY 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.