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 | |
|---|---|---|---|---|---|---|---|---|---|
| 5201 | Rowan Youlin | 47.43 | 9 | B Min | BB: 42.89 (+4.54s | 9.6%) | Bellingham Bay Swim Team | 10/10/2026 | 2026 BBST Fall Kickoff Approved | |
| 5202 | Asher Warren | 47.44 | 8 | B Min | BB: 42.89 (+4.55s | 9.6%) | Old Dominion Aquatic Club | 02/07/2026 | 2026 8 And Under Southeastern District Champs | |
| 5203 | Owen LaFave | 47.44 | 10 | B Min | BB: 42.89 (+4.55s | 9.6%) | Carolina Aquatics Swim Club | 12/12/2025 | 2025 NC QCD Holiday Invite | |
| 5204 | Luke Malovany | 47.44 | 10 | B Min | BB: 42.89 (+4.55s | 9.6%) | Fenix Swim Club | 10/10/2026 | NMST BMHG October Invite 26 | |
| 5205 | Julian Kau | 47.44 | 10 | B Min | BB: 42.89 (+4.55s | 9.6%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 5206 | Mariano Sanchez Nava | 47.45 | 10 | B Min | BB: 42.89 (+4.56s | 9.6%) | Tornadoes Swim Team | 10/09/2026 | 2026 OR HEAT Fall Invitational | |
| 5207 | Pax Vo | 47.45 | 9 | B Min | BB: 42.89 (+4.56s | 9.6%) | Germantown Swim Team | 01/16/2026 | 2026 Gabrielle Rose Tiger Classic | |
| 5208 | Jonathan Guzman Cruz | 47.46 | 10 | B Min | BB: 42.89 (+4.57s | 9.6%) | Aloha | 02/14/2025 | 2025 OR HS 6a 2 | |
| 5209 | Clyde Hanna | 47.46 | 9 | B Min | BB: 42.89 (+4.57s | 9.6%) | Lake Oswego Swim Club | 02/22/2025 | 2025 Arena Short Course 10 U Championships | |
| 5210 | Heriakos Nikodimos | 47.46 | 8 | B Min | BB: 42.89 (+4.57s | 9.6%) | Rockville Montgomery Swim Club | 11/08/2025 | 2025 Autumn Mini Meet | |
| 5211 | Kevin Liu | 47.46 | 10 | B Min | BB: 42.89 (+4.57s | 9.6%) | Arctic Aquatics | 01/09/2026 | 2026 NE CRA New Year Distance And Specialty | |
| 5212 | Nikolai Voroshchuk | 47.46 | 8 | B Min | BB: 42.89 (+4.57s | 9.6%) | Fox Swim Club | 03/21/2026 | 2026 Maryland 8 Under Championship Meet | |
| 5213 | Parker Davis | 47.46 | 10 | B Min | BB: 42.89 (+4.57s | 9.6%) | Unattached | 09/20/2026 | 2026 ST AHAC Vs SURGE | |
| 5214 | Rhys Van Olst | 47.46 | 10 | B Min | BB: 42.89 (+4.57s | 9.6%) | Hickam Hurricanes | 10/02/2026 | 2026 HI Al Minn Invitational | |
| 5215 | Alexander Nabbe | 47.46 | 8 | B Min | BB: 42.89 (+4.57s | 9.6%) | Alto Swim Club | 10/24/2026 | BAC SPOOKY FALL CLASSIC | |
| 5216 | Alexander Heard | 47.47 | 10 | B Min | BB: 42.89 (+4.58s | 9.6%) | Pearland Aquatics | 02/21/2025 | 2025 Gulf 12 Under Champs (KATY) | |
| 5217 | Thomas Sherman | 47.47 | 8 | B Min | BB: 42.89 (+4.58s | 9.6%) | Fast | 03/07/2026 | 2026 GTWY 8 Under Champs | |
| 5218 | Xavier Loose-Paul | 47.47 | 7 | B Min | BB: 42.89 (+4.58s | 9.6%) | Swim Tampa Aquatics | 10/09/2026 | WFLA Halloween Invitational | |
| 5219 | Matthew Schlosberg | 47.48 | 9 | B Min | BB: 42.89 (+4.59s | 9.7%) | Naval Academy Aquatic Club | 11/07/2025 | 2025 CAC 5th Annual Zachary Spain Memorial Me | |
| 5220 | Oliver O'Mara | 47.48 | 10 | B Min | BB: 42.89 (+4.59s | 9.7%) | York Swim Club of Northern Vir | 01/17/2026 | PVS January Open 2026 PWCS | |
| 5221 | Sebastian Walker | 47.48 | 9 | B Min | BB: 42.89 (+4.59s | 9.7%) | Escalate Aquatic Team | 02/21/2025 | 2025 Gulf 12 Under Champs (TASC) | |
| 5222 | Paris Hong | 47.48 | 9 | B Min | BB: 42.89 (+4.59s | 9.7%) | Calvert Aquatics Club | 02/06/2026 | 2026 Last Chance Qualifying Meet | |
| 5223 | Maxwell Zhang | 47.48 | 10 | B Min | BB: 42.89 (+4.59s | 9.7%) | Mei\\\\\\'s Typhoons Swimming Club | 06/07/2026 | 2026 NE NSSC June Invitational At BC High | |
| 5224 | Oliver Bryson | 47.48 | 9 | B Min | BB: 42.89 (+4.59s | 9.7%) | Aces Swim Club | 09/19/2026 | 2026 CO ACES Intrasquad #1 | |
| 5225 | Nathaniel Seo | 47.48 | 9 | B Min | BB: 42.89 (+4.59s | 9.7%) | Seattle Metropolitan Aquatic C | 10/10/2026 | 2026 PN SMAC Fall Kick Off Approved | |
| 5226 | Sven Kim | 47.49 | 10 | B Min | BB: 42.89 (+4.60s | 9.7%) | Twisters Swim Club | 02/28/2026 | 2026 MR QNS I Know I Can Invitational | |
| 5227 | David Milman | 47.49 | 10 | B Min | BB: 42.89 (+4.60s | 9.7%) | Clearwater Aquatic Team | 04/10/2026 | 2026 GTSA TYR Spring Championship | |
| 5228 | Valentin Pronkin | 47.49 | 10 | B Min | BB: 42.89 (+4.60s | 9.7%) | Phoenix Aquatic Club | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 5229 | Brendan Martin | 47.50 | 9 | B Min | BB: 42.89 (+4.61s | 9.7%) | New Bedford YMCA Hurricanes | 02/28/2026 | 2026 NE KCY A SENECY LEAGUE CHAMPS | |
| 5230 | Evan Dao | 47.50 | 9 | B Min | BB: 42.89 (+4.61s | 9.7%) | Machine Aquatics | 02/20/2026 | 2026 Machine Qualifier | |
| 5231 | Jensen Lindow | 47.50 | 9 | B Min | BB: 42.89 (+4.61s | 9.7%) | Asheville Jewish Community Cen | 11/15/2025 | 2025 The Gourd Time Gathering | |
| 5232 | Henry Greene | 47.50 | 10 | B Min | BB: 42.89 (+4.61s | 9.7%) | Marlins Of Raleigh | 03/14/2026 | 2026 MOR Reagan Martin Rocks Swim Meet | |
| 5233 | William Cuba | 47.50 | 7 | B Min | BB: 42.89 (+4.61s | 9.7%) | Eastern Shore YMCA Fins | 02/07/2026 | 2026 8 And Under Southeastern District Champs | |
| 5234 | Otto Myers | 47.50 | 9 | B Min | BB: 42.89 (+4.61s | 9.7%) | Greater Orlando Aquatics Team | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 5235 | Mateo Ibarra | 47.50 | 10 | B Min | BB: 42.89 (+4.61s | 9.7%) | Mount Hood Aquatics | 10/09/2026 | 2026 OR HEAT Fall Invitational | |
| 5236 | Mikah Phiri | 47.50 | 10 | B Min | BB: 42.89 (+4.61s | 9.7%) | Montverde Aquatic Club | 09/12/2026 | 2026 Elizabeth Kazeck Fall Sprint | |
| 5237 | Liam Cotton | 47.50 | 10 | B Min | BB: 42.89 (+4.61s | 9.7%) | RC Durr Family YMCA | 10/10/2026 | 2026 Tsunami Fall Invitational | |
| 5238 | Duke Loula | 47.51 | 9 | B Min | BB: 42.89 (+4.62s | 9.7%) | Aquajets Swim Team | 11/10/2024 | 2024 MN NSAC Fall Invite | |
| 5239 | Kirin Lee | 47.51 | 8 | B Min | BB: 42.89 (+4.62s | 9.7%) | Nsea Swim | 05/29/2026 | 2026 NSEA Swim May Flowers WOW Dual Meet | |
| 5240 | Connor McLemore | 47.51 | 9 | B Min | BB: 42.89 (+4.62s | 9.7%) | Sun Coast Swim Team | 06/20/2026 | 2026 Riptide Summer Open | |
| 5241 | Kristopher Davis | 47.51 | 10 | B Min | BB: 42.89 (+4.62s | 9.7%) | Tampa Y Swimming | 09/18/2026 | Kiefer Speedo Fall Invitational | |
| 5242 | Solomon Whittington | 47.52 | 9 | B Min | BB: 42.89 (+4.63s | 9.7%) | DC Dept Of Parks and Recreatio | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 5243 | Daniel Gladkyi | 47.52 | 8 | B Min | BB: 42.89 (+4.63s | 9.7%) | Life Time Mid Atlantic Swim Te | 10/25/2025 | 2025 PV MAKO PUMPKIN CLASSIC | |
| 5244 | Paul Yastreb | 47.52 | 8 | B Min | BB: 42.89 (+4.63s | 9.7%) | Life Time Mid Atlantic Swim Te | 02/07/2026 | 2026 MAKO QUALIFIER | |
| 5245 | Samuel Leineweber | 47.52 | 9 | B Min | BB: 42.89 (+4.63s | 9.7%) | Apex | 03/14/2026 | 2026 John Haring Memorial BC Showdown | |
| 5246 | Edward Chiu | 47.52 | 9 | B Min | BB: 42.89 (+4.63s | 9.7%) | Front Range Barracudas | 07/09/2026 | 2026 CO NCS 10 U Summer Festival | |
| 5247 | Benjamin Levin | 47.52 | 10 | B Min | BB: 42.89 (+4.63s | 9.7%) | Shawmut Aquatic Club | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 5248 | Liam Dysard | 47.52 | 9 | B Min | BB: 42.89 (+4.63s | 9.7%) | Northern Dutchess Aquatic Club | 12/06/2025 | 2025 MR NDAC Kevin Storrs Winter Festival | |
| 5249 | Marcus Zhu | 47.53 | 10 | B Min | BB: 42.89 (+4.64s | 9.8%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 5250 | Ethan Mazzitti | 47.53 | 8 | B Min | BB: 42.89 (+4.64s | 9.8%) | 757swim | 02/07/2026 | 2026 8 And Under Southeastern District Champs | |
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.