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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2301 | Matthew Kopecky | 47.60 | 10 | BB Min | A: 42.09 (+5.51s | 11.6%) | YMCA of Central Massachusetts | 01/30/2026 | 2026 NE GS Silver Championships | |
| 2302 | Matthew Barrenechea | 47.60 | 10 | BB Min | A: 42.09 (+5.51s | 11.6%) | Metro Aquatic Club of Miami | 11/21/2025 | 2025 Gulliver Gobble Gobble Nov Last Chance | |
| 2303 | Asher Knapp | 47.61 | 9 | BB Min | A: 42.09 (+5.52s | 11.6%) | Tide Swimming | 10/10/2025 | 2025 TIDE Atlantic Coast Clash Copied | |
| 2304 | David Mastin | 47.61 | 9 | BB Min | A: 42.09 (+5.52s | 11.6%) | Razor Aquatics | 12/12/2025 | OLY Swimming Holiday Bowl | |
| 2305 | Gavin Burpee | 47.62 | 10 | BB Min | A: 42.09 (+5.53s | 11.6%) | Egra Waves | 12/05/2025 | EGRA 2025 Winter Washout | |
| 2306 | Shiloh Gibson | 47.62 | 8 | BB Min | A: 42.09 (+5.53s | 11.6%) | Miami County Day Aquatic | 01/31/2026 | 2026 Panther Invitational | |
| 2307 | Adrian Williams | 47.62 | 8 | BB Min | A: 42.09 (+5.53s | 11.6%) | Piranha Swimming | 11/08/2025 | TCA PC November SC C B A+ | |
| 2308 | Ryan Chen | 47.62 | 9 | BB Min | A: 42.09 (+5.53s | 11.6%) | Northern Lights Swimming Assoc | 01/17/2026 | 2026 Optimist High Point Meet | |
| 2309 | Oliver Tornatore | 47.63 | 10 | BB Min | A: 42.09 (+5.54s | 11.6%) | Central Minnesota Aquatics | 01/25/2026 | 2026 MN HURR January Invitational | |
| 2310 | Bennett Bianchi | 47.63 | 8 | BB Min | A: 42.09 (+5.54s | 11.6%) | Commonwealth Swimming | 11/07/2025 | 2025 NE CS Fall Classic Copied | |
| 2311 | Noah Kim | 47.63 | 9 | BB Min | A: 42.09 (+5.54s | 11.6%) | Spartan Aquatic Club | 02/14/2026 | SAC Winter Classic | |
| 2312 | Daniel Guo | 47.63 | 10 | BB Min | A: 42.09 (+5.54s | 11.6%) | Riptide Swim Team | 02/07/2026 | 2026 MN AQJT February Invite | |
| 2313 | Arthur Cahoy | 47.64 | 9 | BB Min | A: 42.09 (+5.55s | 11.6%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 2314 | Levi Burrows | 47.64 | 10 | BB Min | A: 42.09 (+5.55s | 11.6%) | St Croix Swim Club | 01/09/2026 | 2026 MN FOXJ Winter Classic | |
| 2315 | Ryan Sanders | 47.64 | 9 | BB Min | A: 42.09 (+5.55s | 11.6%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 2316 | Victor Nicks | 47.64 | 10 | BB Min | A: 42.09 (+5.55s | 11.6%) | Aces Swim Club | 01/23/2026 | 2026 CO TOPS Colorado Open | |
| 2317 | Evan Wik | 47.65 | 8 | BB Min | A: 42.09 (+5.56s | 11.7%) | Southwest Stars Swim Club | 12/05/2025 | 2025 Speedo Gator Holiday Classic | |
| 2318 | Alec Stanimirov | 47.65 | 8 | BB Min | A: 42.09 (+5.56s | 11.7%) | Azura Florida Aquatics | 02/06/2026 | Friendship Meet 2026 | |
| 2319 | Stuart Franks | 47.65 | 9 | BB Min | A: 42.09 (+5.56s | 11.7%) | Marlins Of Raleigh | 01/16/2026 | 2026 RSA Winter Tri | |
| 2320 | Drew Fox | 47.65 | 10 | BB Min | A: 42.09 (+5.56s | 11.7%) | York Swim Club of Northern Vir | 11/07/2025 | 2025 HOKI November Invitational Copied | |
| 2321 | Michael Parks | 47.65 | 10 | BB Min | A: 42.09 (+5.56s | 11.7%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 2322 | DongHyuk Kang | 47.65 | 9 | BB Min | A: 42.09 (+5.56s | 11.7%) | SwimMAC Carolina | 02/14/2026 | 2026 SwimMAC Qualifier Festival | |
| 2323 | Bryce Alpert | 47.65 | 9 | BB Min | A: 42.09 (+5.56s | 11.7%) | Aquazot Swim Club | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 2324 | Ziyi Yang | 47.65 | 9 | BB Min | A: 42.09 (+5.56s | 11.7%) | Shawmut Aquatic Club | 01/30/2026 | 2026 NE CS Silver Championships | |
| 2325 | Aur Cannaviello Persiche | 47.65 | 9 | BB Min | A: 42.09 (+5.56s | 11.7%) | Asphalt Green Unified Aquatics | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 2326 | Lorenzo Alberani | 47.65 | 10 | BB Min | A: 42.09 (+5.56s | 11.7%) | Azura Florida Aquatics | 01/24/2026 | 2026 Azura SwimFast Winter Intrasquad | |
| 2327 | Ryan Phung | 47.66 | 10 | BB Min | A: 42.09 (+5.57s | 11.7%) | Mason Makos Swim Team | 10/25/2025 | 2025 PV MAKO PUMPKIN CLASSIC | |
| 2328 | Noah Hamdaoui | 47.66 | 10 | BB Min | A: 42.09 (+5.57s | 11.7%) | Nation\\\\\\'s Capital Swim Club | 11/14/2025 | 2025 PV November Open Dulles South | |
| 2329 | Samuel Ambrose | 47.66 | 10 | BB Min | A: 42.09 (+5.57s | 11.7%) | Cascade Swim Club | 10/04/2025 | 2025 PN Cascade Fall Classic | |
| 2330 | Fedor Evstigneev | 47.66 | 9 | BB Min | A: 42.09 (+5.57s | 11.7%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 2331 | Maxwell Chen | 47.66 | 9 | BB Min | A: 42.09 (+5.57s | 11.7%) | Suburban Aquatics | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 2332 | Eric Bindrum | 47.67 | 10 | BB Min | A: 42.09 (+5.58s | 11.7%) | Qns Aquatic Club | 02/07/2026 | 2026 MR QNS We Fly High Invitational | |
| 2333 | Basil Bouzalis | 47.67 | 9 | BB Min | A: 42.09 (+5.58s | 11.7%) | 92ny Flying Dolphins | 02/06/2026 | 2026 MR YMID February Classic Copied | |
| 2334 | Lincoln Yrizarry | 47.67 | 10 | BB Min | A: 42.09 (+5.58s | 11.7%) | Iolani Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 2335 | Jordan Dimaio | 47.67 | 10 | BB Min | A: 42.09 (+5.58s | 11.7%) | Otter Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 2336 | Dimitri Powell | 47.68 | 10 | BB Min | A: 42.09 (+5.59s | 11.7%) | Columbia Aquatics Association | 12/05/2025 | 2025 Christmas Championships | |
| 2337 | Clark Yang | 47.68 | 9 | BB Min | A: 42.09 (+5.59s | 11.7%) | Dads Club Swim Team | 01/18/2025 | 2025 LSST January Frosty Meet | |
| 2338 | Zaiden Vlahos | 47.69 | 8 | BB Min | A: 42.09 (+5.60s | 11.7%) | Triton Swimming of Louisville | 12/05/2025 | 2025 Beaman Toyota Meet Of Champs | |
| 2339 | George Selwood | 47.69 | 10 | BB Min | A: 42.09 (+5.60s | 11.7%) | Calvert Aquatics Club | 11/07/2025 | 2025 CAC 5th Annual Zachary Spain Memorial Me | |
| 2340 | Xander McGraw | 47.69 | 10 | BB Min | A: 42.09 (+5.60s | 11.7%) | Unattached | 01/09/2026 | 2026 IA Midwest All Stars 09Jan2026 Midwestern | |
| 2341 | Evan Tomizawa | 47.70 | 10 | B Min | BB: 47.69 (+0.01s | 0.0%) | Kamehameha Swim Club | 10/25/2025 | 2025 HI 25th Annual Bill Smith Invitational | |
| 2342 | Owen Kramer | 47.70 | 9 | B Min | BB: 47.69 (+0.01s | 0.0%) | New Wave Swim Team | 12/13/2025 | 2025 Ugly Sweater Meet | |
| 2343 | William Ehrstein | 47.71 | 9 | B Min | BB: 47.69 (+0.02s | 0.0%) | Rockville Montgomery Swim Club | 11/14/2025 | 2025 RMSC November Dual Meet | |
| 2344 | Ethan Liu | 47.72 | 10 | B Min | BB: 47.69 (+0.03s | 0.1%) | Crimson Aquatics | 11/14/2025 | 2025 NE CRIM November Specialty Copied C | |
| 2345 | Grayson Spray | 47.72 | 10 | B Min | BB: 47.69 (+0.03s | 0.1%) | Shawmut Aquatic Club | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 2346 | Cole Goodrum | 47.72 | 10 | B Min | BB: 47.69 (+0.03s | 0.1%) | Cavalier Aquatics/Piedmont Fam | 01/31/2026 | LY Vs CA Y January Dual | |
| 2347 | Zachary Zourdos | 47.72 | 9 | B Min | BB: 47.69 (+0.03s | 0.1%) | SwimFast | 09/06/2025 | Sunrise Swimmng Open Invite | |
| 2348 | Kane Sperber | 47.73 | 9 | B Min | BB: 47.69 (+0.04s | 0.1%) | Pacific Swim | 12/05/2025 | 2025 SI JBST Wag Max Meet | |
| 2349 | Felix Henaire | 47.73 | 10 | B Min | BB: 47.69 (+0.04s | 0.1%) | Wave Aquatics | 11/22/2025 | 2025 PN Nov AGI, Division 2 (SMAC) | |
| 2350 | Jonathan Wen | 47.73 | 10 | B Min | BB: 47.69 (+0.04s | 0.1%) | Rancho San Dieguito | 01/31/2026 | 2026 SBA All Ages NTS 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.