USA Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 201 | Calvin Tonk | 40.17 | 10 | AA Min | AAA: 38.29 (+1.88s | 4.7%) | Benton Harbor-St. Joseph YMCA | 03/07/2026 | 2026 Michigan YMCA State Championship | |
| 202 | Yanbo Li | 40.17 | 10 | AA Min | AAA: 38.29 (+1.88s | 4.7%) | Bolles School Sharks | 09/13/2026 | 2026 September Splash | |
| 203 | Troy Cary | 40.19 | 9 | AA Min | AAA: 38.29 (+1.90s | 4.7%) | Unattached | 01/17/2026 | 2026 ST AAAA NS Frostbite | |
| 204 | Leon Wu | 40.20 | 9 | A Min | AA: 40.19 (+0.01s | 0.0%) | 92ny Flying Dolphins | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 205 | Harrison Band | 40.20 | 10 | A Min | AA: 40.19 (+0.01s | 0.0%) | Nation\\\\\\'s Capital Swim Club | 11/07/2025 | 2025 Mid Atlantic AG Championship Showdown | |
| 206 | Zeeon Zang | 40.21 | 8 | A Min | AA: 40.19 (+0.02s | 0.0%) | X-Cel Swimming | 01/31/2026 | 2026 CAT Cougar Snow Storm | |
| 207 | Lucas Li | 40.21 | 8 | A Min | AA: 40.19 (+0.02s | 0.0%) | Metro Area Life Time | 10/17/2026 | 2026 EEX RU Scared Yet | |
| 208 | Ahaan Iragavarapu | 40.23 | 10 | A Min | AA: 40.19 (+0.04s | 0.1%) | Pro Swimming | 12/12/2025 | 2025 PN 14 Under Short Course Champs Approved | |
| 209 | Jason Yin | 40.24 | 9 | A Min | AA: 40.19 (+0.05s | 0.1%) | Quicksilver Swimming | 03/20/2026 | SCY Spring Age Group Championships | |
| 210 | Peter McCormick | 40.25 | 10 | A Min | AA: 40.19 (+0.06s | 0.1%) | Wahoo Aquatic Club | 03/19/2026 | 2026 NC TAC ESSZ Age Group Sectionals | |
| 211 | Liam Dunn | 40.25 | 10 | A Min | AA: 40.19 (+0.06s | 0.1%) | Meadowbrook Swim Team | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 212 | Henry Lampley | 40.25 | 9 | A Min | AA: 40.19 (+0.06s | 0.1%) | YMCA of Florida\\\\\\'s First Coast | 09/26/2026 | EAJ Speedo September Meet 2026 | |
| 213 | Dashel Dean | 40.27 | 10 | A Min | AA: 40.19 (+0.08s | 0.2%) | Occoquan Swimming | 12/11/2025 | 2025 East Coast WinterFest | |
| 214 | Jaden Zhao | 40.27 | 10 | B Min | BB: 40.09 (+0.18s | 0.4%) | Jersey Flyers Aquatic Club | 02/06/2026 | 2026 MR COND Last Chance Invitational | |
| 215 | Michael Laurence | 40.27 | 9 | A Min | AA: 40.19 (+0.08s | 0.2%) | Gulliver Swim Club | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 216 | Baker Lowrance | 40.29 | 10 | A Min | AA: 40.19 (+0.10s | 0.2%) | SwimRVA | 03/12/2026 | 2026 Virginia Swimming SC Age Group Champions | |
| 217 | John Piracci | 40.30 | 10 | A Min | AA: 40.19 (+0.11s | 0.3%) | SwimRVA | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 218 | Caleb Horvath | 40.32 | 9 | A Min | AA: 40.19 (+0.13s | 0.3%) | Mecklenburg Swim Association | 02/26/2026 | 2026 NCS SC AG CHAMPS | |
| 219 | Dexter Danont | 40.33 | 10 | A Min | AA: 40.19 (+0.14s | 0.3%) | Charles River Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 220 | Everett Muzzarelli | 40.33 | 8 | A Min | AA: 40.19 (+0.14s | 0.3%) | Woodbridge Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 221 | Ashwin Tiwari | 40.33 | 9 | A Min | AA: 40.19 (+0.14s | 0.3%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 222 | Dean Sutton | 40.34 | 10 | A Min | AA: 40.19 (+0.15s | 0.4%) | East Coast C-Cerpants | 11/14/2025 | ISCA Fall Classic Championship 2025 | |
| 223 | Taeyul Heo | 40.34 | 10 | A Min | AA: 40.19 (+0.15s | 0.4%) | Pleasanton Seahawks | 10/10/2026 | SRVA SC C B BB+ Meet | |
| 224 | Adelynn Spurlin | 40.40 | 10 | A Min | AA: 40.19 (+0.21s | 0.5%) | North Jeffco Swim Team | 10/16/2026 | 2026 CO MACS Fall Invitational | |
| 225 | Yining Zhao | 40.41 | 10 | A Min | AA: 40.19 (+0.22s | 0.5%) | Tac Titans | 03/25/2026 | 2026 TAC TITANS Tarheel States Meet | |
| 226 | Ryan Xie | 40.41 | 10 | A Min | AA: 40.19 (+0.22s | 0.5%) | Cascadia Swimming | 09/26/2026 | FGSC 2026 Season Opener Pentathlon | |
| 227 | William Huang | 40.42 | 8 | A Min | AA: 40.19 (+0.23s | 0.6%) | Charles River Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 228 | Everett Cassidy | 40.42 | 10 | A Min | AA: 40.19 (+0.23s | 0.6%) | Nsea Swim | 02/26/2026 | 2026 NCS SC AG CHAMPS | |
| 229 | Dylan Tian | 40.45 | 9 | A Min | AA: 40.19 (+0.26s | 0.6%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 230 | Hopper Clarke | 40.48 | 10 | A Min | AA: 40.19 (+0.29s | 0.7%) | Caldera | 02/14/2025 | 2025 OR HS 5a 4 | |
| 231 | Flynn Chen | 40.48 | 10 | A Min | AA: 40.19 (+0.29s | 0.7%) | DeAnza Cupertino Aquatics | 10/03/2026 | 2026 De Anza Cupertino Aquatics SC CBA Meet | |
| 232 | Louis Yu | 40.49 | 9 | A Min | AA: 40.19 (+0.30s | 0.7%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 233 | Jorden Li | 40.50 | 10 | A Min | AA: 40.19 (+0.31s | 0.8%) | Arctic Aquatics | 10/04/2025 | 2025 NE CS Fall Sprints Copied | |
| 234 | Christian Hebron | 40.53 | 9 | A Min | AA: 40.19 (+0.34s | 0.8%) | Prince William Swim Club | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 235 | Oliver Panofsky | 40.54 | 9 | A Min | AA: 40.19 (+0.35s | 0.9%) | Slo Swim Club Seahawks | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 236 | August Baikauskas | 40.54 | 9 | A Min | AA: 40.19 (+0.35s | 0.9%) | Loyola Blakefield Aquatics | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 237 | Blake Porteus | 40.54 | 10 | A Min | AA: 40.19 (+0.35s | 0.9%) | Westerville Aquatic Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 238 | Kai Thomas | 40.54 | 10 | A Min | AA: 40.19 (+0.35s | 0.9%) | Renegade Aquatics | 07/10/2026 | 2026 SI JBST All Ages Last Chance Meet | |
| 239 | Silas Sebera | 40.55 | 10 | A Min | AA: 40.19 (+0.36s | 0.9%) | Nova of Virginia | 12/05/2025 | 2025 757swim Grand Illumination | |
| 240 | Layton Groneck | 40.55 | 10 | A Min | AA: 40.19 (+0.36s | 0.9%) | Northern KY Clippers | 10/23/2026 | 2026 CLPR Halloween Meet | |
| 241 | Stepan Gribanov | 40.63 | 9 | A Min | AA: 40.19 (+0.44s | 1.1%) | Staten Island Aquatics Club | 02/07/2026 | 2026 MR QNS We Fly High Invitational | |
| 242 | Jacob Li | 40.64 | 10 | A Min | AA: 40.19 (+0.45s | 1.1%) | Swim Tech | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 243 | Kennedy Tang | 40.64 | 10 | A Min | AA: 40.19 (+0.45s | 1.1%) | Harbor Seals | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 244 | Lucas Jiang | 40.70 | 10 | A Min | AA: 40.19 (+0.51s | 1.3%) | Santa Clara Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 245 | Parker Baird | 40.70 | 10 | A Min | AA: 40.19 (+0.51s | 1.3%) | Woodward Aquatics Club | 09/12/2026 | OST Fall Invite | |
| 246 | William Palumbo | 40.71 | 10 | A Min | AA: 40.19 (+0.52s | 1.3%) | Nova of Virginia | 01/16/2026 | GSA January Jump Start 2026 | |
| 247 | Luke Chai | 40.71 | 10 | A Min | AA: 40.19 (+0.52s | 1.3%) | Pleasanton Seahawks | 10/10/2026 | SRVA SC C B BB+ Meet | |
| 248 | Coryel Harger | 40.72 | 10 | A Min | AA: 40.19 (+0.53s | 1.3%) | Unattached | 09/19/2026 | 2026 GCST FALL OPEN | |
| 249 | Orion Blue-Smith | 40.72 | 10 | A Min | AA: 40.19 (+0.53s | 1.3%) | Palo Alto Stanford Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 250 | Yuning Huang | 40.73 | 10 | A Min | AA: 40.19 (+0.54s | 1.3%) | Rose Bowl Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
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.