USA Boys 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 151 | Beckham Sleeth | 41.70 | 9 | A Min | AA: 41.09 (+0.61s | 1.5%) | Highlands Ranch Aquatics | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 152 | Jaezyn Magnaye | 41.71 | 10 | A Min | AA: 41.09 (+0.62s | 1.5%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 153 | Stryker Fonseca | 41.73 | 10 | A Min | AA: 41.09 (+0.64s | 1.5%) | Barracuda Aquatic Club | 07/17/2025 | 2025 UTAGS LC Championships | |
| 154 | Colt Sivells | 41.73 | 10 | A Min | AA: 41.09 (+0.64s | 1.5%) | Southwest Stars Swim Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 155 | Haoran Cong | 41.73 | 10 | A Min | AA: 41.09 (+0.64s | 1.5%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 156 | Logan Smith | 41.74 | 10 | A Min | AA: 41.09 (+0.65s | 1.6%) | Unattached | 07/31/2025 | 2025 Central Zone 14 Under Championship Mee | |
| 157 | Luke Ford | 41.75 | 9 | A Min | AA: 41.09 (+0.66s | 1.6%) | The Claremont Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 158 | Evan Wik | 41.75 | 9 | A Min | AA: 41.09 (+0.66s | 1.6%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 159 | Toby Wong | 41.78 | 11 | A Min | AA: 41.09 (+0.69s | 1.7%) | Quicksilver Swimming | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 160 | Uriah Sanchez | 41.82 | 10 | A Min | AA: 41.09 (+0.73s | 1.7%) | Rocky Mountain Rapids | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 161 | Dylan Deahn | 41.84 | 9 | A Min | AA: 41.09 (+0.75s | 1.8%) | Unattached | 07/31/2025 | 2025 Central Zone 14 Under Championship Mee | |
| 162 | Blake Bardenhagen | 41.84 | 10 | A Min | AA: 41.09 (+0.75s | 1.8%) | Island Aquatics | 05/02/2026 | 2026 MAGSA LCM B 1 Meet | |
| 163 | Liam Kwok | 41.85 | 10 | A Min | AA: 41.09 (+0.76s | 1.8%) | Socal Aquatics Association | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 164 | Vaughn Jacob | 41.85 | 10 | A Min | AA: 41.09 (+0.76s | 1.8%) | The Dolphins Portland Swimming | 05/01/2026 | 2026 AAA May LC Invitational | |
| 165 | Aiden Suffel | 41.91 | 10 | A Min | AA: 41.09 (+0.82s | 2.0%) | Lakeshore Swim Club | 05/16/2025 | Busbey Invitational 2025 | |
| 166 | Calvin Higgs | 41.95 | 10 | A Min | AA: 41.09 (+0.86s | 2.1%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 167 | Preston Cain | 42.00 | 10 | A Min | AA: 41.09 (+0.91s | 2.2%) | Streamline Aquatics | 04/17/2026 | 1st Annual SAW Vs Streamline Fiesta Showdown | |
| 168 | Mason Nguyen | 42.00 | 10 | A Min | AA: 41.09 (+0.91s | 2.2%) | Aquazot Swim Club | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 169 | Caleb Stone | 42.03 | 10 | A Min | AA: 41.09 (+0.94s | 2.2%) | Bellingham Bay Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 170 | Archer Sewell | 42.04 | 10 | A Min | AA: 41.09 (+0.95s | 2.3%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 171 | Jayden Cheng | 42.09 | 10 | A Min | AA: 41.09 (+1.00s | 2.4%) | Brea Aquatics | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 172 | Cannon Brown | 42.10 | 10 | A Min | AA: 41.09 (+1.01s | 2.4%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 173 | Dean Hunter | 42.11 | 10 | A Min | AA: 41.09 (+1.02s | 2.4%) | Planet Swim Aquatics | 05/16/2026 | 2026 PSA May Invite | |
| 174 | Rafael Parlato | 42.13 | 10 | A Min | AA: 41.09 (+1.04s | 2.5%) | Fenix Swim Club | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 175 | Tucker McCullough | 42.14 | 10 | A Min | AA: 41.09 (+1.05s | 2.5%) | Team Rebel Aquatics | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 176 | Jack Yu | 42.14 | 10 | A Min | AA: 41.09 (+1.05s | 2.5%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 177 | Theodore Neese | 42.14 | 10 | A Min | AA: 41.09 (+1.05s | 2.5%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 178 | Lynden Feaste | 42.18 | 9 | A Min | AA: 41.09 (+1.09s | 2.6%) | Can Mississauga Aquatic Club | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 179 | Ethan Ramon | 42.18 | 10 | A Min | AA: 41.09 (+1.09s | 2.6%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 180 | Duke Layco | 42.18 | 10 | A Min | AA: 41.09 (+1.09s | 2.6%) | Hawaii Swimming Club | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 181 | Leo Lafferty | 42.26 | 10 | A Min | AA: 41.09 (+1.17s | 2.8%) | Westlake Aquatic Facility | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 182 | Mason Stout | 42.28 | 10 | A Min | AA: 41.09 (+1.19s | 2.8%) | Foxjets Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 183 | Ozzy Su | 42.30 | 10 | A Min | AA: 41.09 (+1.21s | 2.9%) | Quicksilver Swimming | 07/11/2025 | 2025 Age Group Championships | |
| 184 | Alister Carlton | 42.30 | 9 | A Min | AA: 41.09 (+1.21s | 2.9%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 185 | Zachary Mokhiber | 42.30 | 10 | A Min | AA: 41.09 (+1.21s | 2.9%) | T2 Aquatics | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 186 | Travis Ward | 42.38 | 11 | A Min | AA: 41.09 (+1.29s | 3.0%) | Wolverine Aquatics | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 187 | Marcus Stefan | 42.40 | 11 | A Min | AA: 41.09 (+1.31s | 3.1%) | Teamgoldusa | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 188 | Luke Wang | 42.41 | 9 | A Min | AA: 41.09 (+1.32s | 3.1%) | Flatiron Athletic Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 189 | Theodore Gerber | 42.42 | 10 | A Min | AA: 41.09 (+1.33s | 3.1%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 190 | David Limakov | 42.45 | 10 | A Min | AA: 41.09 (+1.36s | 3.2%) | Pipeline Swimming | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 191 | Yixuan Zhu | 42.48 | 10 | A Min | AA: 41.09 (+1.39s | 3.3%) | Pleasanton Seahawks | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 192 | Jerry Ji | 42.49 | 10 | A Min | AA: 41.09 (+1.40s | 3.3%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 193 | Connor Li | 42.51 | 9 | A Min | AA: 41.09 (+1.42s | 3.3%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 194 | Harvey Zhang | 42.54 | 10 | A Min | AA: 41.09 (+1.45s | 3.4%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 195 | Alexander Dmyterko | 42.58 | 10 | A Min | AA: 41.09 (+1.49s | 3.5%) | Wahoo\\\\\\'s of Wellington | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 196 | Zacharia Labyed | 42.59 | 9 | A Min | AA: 41.09 (+1.50s | 3.5%) | North Coast Aquatics | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 197 | Lichen Chi | 42.61 | 9 | A Min | AA: 41.09 (+1.52s | 3.6%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 198 | Kian Sotomayor | 42.61 | 10 | A Min | AA: 41.09 (+1.52s | 3.6%) | Rose Bowl Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 199 | Rowan Sargent | 42.62 | 9 | A Min | AA: 41.09 (+1.53s | 3.6%) | Flatiron Athletic Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 200 | Justin Chi | 42.62 | 9 | A Min | AA: 41.09 (+1.53s | 3.6%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
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.