USA Boys 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 301 | Kaito Kinnaird | 47.25 | 10 | A Min | AA: 45.79 (+1.46s | 3.1%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 302 | Cameron Day | 47.25 | 10 | A Min | AA: 45.79 (+1.46s | 3.1%) | Mission Viejo Nadadores | 06/11/2026 | 2026 SCS June AG Invite | |
| 303 | Henry Goddard | 47.26 | 10 | A Min | AA: 45.79 (+1.47s | 3.1%) | Lake Oswego Swim Club | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 304 | Aaron Lam | 47.27 | 10 | A Min | AA: 45.79 (+1.48s | 3.1%) | South Shore YMCA Strypers | 06/26/2026 | 2026 NE YNS June Prelims Finals Meet | |
| 305 | Anthony Ma | 47.28 | 10 | A Min | AA: 45.79 (+1.49s | 3.2%) | Cottonwood Heights Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 306 | Matias Cardona | 47.28 | 10 | A Min | AA: 45.79 (+1.49s | 3.2%) | SwimFast | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 307 | Brian Yu | 47.29 | 10 | A Min | AA: 45.79 (+1.50s | 3.2%) | Dare Aquatics | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 308 | Connor Finan | 47.29 | 9 | A Min | AA: 45.79 (+1.50s | 3.2%) | Atlantic Coast Athletic Club | 05/29/2026 | 2026 SwimRVA Success Bell | |
| 309 | Aiden Kiatrungrit | 47.32 | 10 | A Min | AA: 45.79 (+1.53s | 3.2%) | South San Francisco Aquatics | 06/12/2026 | BAC Long Course | |
| 310 | Daniel Nagaoka | 47.34 | 10 | A Min | AA: 45.79 (+1.55s | 3.3%) | Quicksilver Swimming | 06/11/2026 | 2026 SCS June AG Invite | |
| 311 | Callahan Espiritu | 47.35 | 8 | A Min | AA: 45.79 (+1.56s | 3.3%) | Aquazot Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 312 | Bennett Montague | 47.35 | 10 | A Min | AA: 45.79 (+1.56s | 3.3%) | Cypress Fairbanks Swim Club | 06/12/2026 | 2026 ST TXLA Texas Open Invite | |
| 313 | Braylon Ward | 47.39 | 10 | A Min | AA: 45.79 (+1.60s | 3.4%) | Aquatex Swim & Water Polo Team | 06/12/2026 | 2026 ST TXLA Texas Open Invite | |
| 314 | Liam Bundick | 47.40 | 10 | A Min | AA: 45.79 (+1.61s | 3.4%) | Alamo Area Aquatic Association | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
| 315 | Yifan Liu | 47.42 | 9 | A Min | AA: 45.79 (+1.63s | 3.4%) | Mei\\\\\\'s Typhoons Swimming Club | 04/24/2026 | 2026 NE NSSC 4 24 26 Specialty Meet | |
| 316 | Jaezyn Magnaye | 47.44 | 10 | A Min | AA: 45.79 (+1.65s | 3.5%) | Tualatin Hills Swim Club | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 317 | William Sun | 47.45 | 10 | A Min | AA: 45.79 (+1.66s | 3.5%) | Coast Gaurd Blue Dolphins | 05/01/2026 | 2026 TIDE Spring Shockwave | |
| 318 | Leonardo Henn | 47.45 | 10 | A Min | AA: 45.79 (+1.66s | 3.5%) | Eagles Swim Club | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 319 | Gavin Mahrous | 47.49 | 9 | A Min | AA: 45.79 (+1.70s | 3.6%) | Sioux Falls Swim Team | 05/30/2026 | 2026 MN RSC Summer Jam | |
| 320 | Max Matov | 47.49 | 10 | A Min | AA: 45.79 (+1.70s | 3.6%) | Commonwealth Swimming | 05/01/2026 | 2026 NE CS Spring Fling | |
| 321 | Charles Dail | 47.51 | 9 | A Min | AA: 45.79 (+1.72s | 3.6%) | Lexington Dolphins | 04/25/2026 | 2026 Triton Derby Swim Festival | |
| 322 | Marcus Pass | 47.53 | 9 | A Min | AA: 45.79 (+1.74s | 3.7%) | Sioux Falls Swim Team | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | |
| 323 | Owen Newton | 47.54 | 10 | A Min | AA: 45.79 (+1.75s | 3.7%) | SwimNation Aquatics Programs | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 324 | Liam Reyes | 47.54 | 10 | A Min | AA: 45.79 (+1.75s | 3.7%) | Reno Aquatic Club | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | |
| 325 | Aleksandr Rybin | 47.55 | 10 | A Min | AA: 45.79 (+1.76s | 3.7%) | King Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 326 | Mark Kiselev | 47.55 | 9 | A Min | AA: 45.79 (+1.76s | 3.7%) | Royal Swim Team | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 327 | Luke Chai | 47.57 | 9 | A Min | AA: 45.79 (+1.78s | 3.7%) | Pleasanton Seahawks | 06/27/2026 | NVST Summer Plunge 2026 | |
| 328 | Marcello Rinaldi | 47.58 | 10 | A Min | AA: 45.79 (+1.79s | 3.8%) | Minnetonka Swim Club | 06/27/2026 | 2026 STAR Summer Splash Invite | |
| 329 | Jimmy Fang | 47.58 | 10 | A Min | AA: 45.79 (+1.79s | 3.8%) | Nitro Swimming | 06/11/2026 | 2026 ST NIST George Block Invitational | |
| 330 | Robert Richards | 47.59 | 10 | A Min | AA: 45.79 (+1.80s | 3.8%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 331 | Orion Blue-Smith | 47.59 | 10 | A Min | AA: 45.79 (+1.80s | 3.8%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 332 | Davis King | 47.60 | 9 | A Min | AA: 45.79 (+1.81s | 3.8%) | Tac Titans | 05/15/2026 | 2026 TAC TITANS Spring Fling Meet | |
| 333 | Edwin Fernando | 47.62 | 10 | A Min | AA: 45.79 (+1.83s | 3.8%) | Cerritos Aquatic Club | 06/11/2026 | 2026 SCS June AG Invite | |
| 334 | Flynn Chen | 47.62 | 10 | A Min | AA: 45.79 (+1.83s | 3.8%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 335 | Mason Lankford | 47.64 | 10 | A Min | AA: 45.79 (+1.85s | 3.9%) | Sporting Jax Aquatic Club | 05/22/2026 | EAJ Mayhem 2026 | |
| 336 | Zakhar Breslavskyi | 47.64 | 10 | A Min | AA: 45.79 (+1.85s | 3.9%) | Boise YMCA Swim Team | 07/04/2026 | Pendleton Open 2026 | |
| 337 | Maochen Tan | 47.67 | 10 | A Min | AA: 45.79 (+1.88s | 3.9%) | Mission Viejo Nadadores | 06/11/2026 | 2026 SCS June AG Invite | |
| 338 | Caleb Horvath | 47.70 | 9 | A Min | AA: 45.79 (+1.91s | 4.0%) | Mecklenburg Swim Association | 04/25/2026 | 2026 MSA April LC Meet | |
| 339 | Yanbo Li | 47.71 | 9 | A Min | AA: 45.79 (+1.92s | 4.0%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 340 | Tyler Zhu | 47.71 | 10 | A Min | AA: 45.79 (+1.92s | 4.0%) | Arctic Aquatics | 04/11/2026 | 2026 NE CS Season Opener | |
| 341 | Spencer Ramsbottom | 47.72 | 9 | A Min | AA: 45.79 (+1.93s | 4.0%) | Marlins Of Raleigh | 05/15/2026 | 2026 NCAC Meet On The Hill | |
| 342 | Andre Rubio | 47.73 | 10 | A Min | AA: 45.79 (+1.94s | 4.1%) | El Paso Aqua Posse | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 343 | Cash Bailey | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 344 | Clayton Chester | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | Heartland Swim Assoc | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 345 | Owen Schulte | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | South Shore Sails | 07/16/2025 | 2025 Texas Age Group Championships | |
| 346 | Lucca Belluco | 47.78 | 10 | A Min | AA: 45.79 (+1.99s | 4.2%) | Marlins Of Raleigh | 06/13/2026 | 2026 MOR Liberty Meet | |
| 347 | Jacob Greveling | 47.80 | 10 | A Min | AA: 45.79 (+2.01s | 4.2%) | SwimMAC Carolina | 06/19/2026 | GSA 70th Annual Eastern Invitational | |
| 348 | Angel Cordero | 47.81 | 10 | A Min | AA: 45.79 (+2.02s | 4.2%) | Equipo Natacion Encantada | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 349 | Adelynn Spurlin | 47.81 | 10 | A Min | AA: 45.79 (+2.02s | 4.2%) | North Jeffco Swim Team | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 350 | David Xiong | 47.82 | 8 | A Min | AA: 45.79 (+2.03s | 4.2%) | Arctic Aquatics | 06/26/2026 | 2026 NE MST ESC June Memorial | |
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.