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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1251 | Miles Del Castillo | 53.45 | 10 | B Min | BB: 49.29 (+4.16s | 7.8%) | AC Swim Club | 05/17/2025 | Neptune Swimming May Long Course Meet | |
| 1252 | Ethan Xu | 53.45 | 8 | B Min | BB: 49.29 (+4.16s | 7.8%) | Riptide Swim Team | 06/26/2025 | 2025 MN AQJT Aquajets Summer Spectacular | |
| 1253 | Sven Kelley | 53.45 | 8 | B Min | BB: 49.29 (+4.16s | 7.8%) | North Jeffco Swim Team | 06/06/2025 | 2025 CO NJ Summer Solstice Invitational | |
| 1254 | Jensen Rogalsky | 53.45 | 10 | B Min | BB: 49.29 (+4.16s | 7.8%) | Gold Coast Swim Team | 05/30/2025 | LA OPEN 2025 | |
| 1255 | Evan Xia | 53.45 | 8 | B Min | BB: 49.29 (+4.16s | 7.8%) | Nitro Swimming | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 1256 | Gabriel Goldman-Mohl | 53.45 | 9 | B Min | BB: 49.29 (+4.16s | 7.8%) | Dart Swimming | 06/21/2024 | Reno Aquatic Club Gamble | |
| 1257 | Solomon Fox | 53.46 | 7 | B Min | BB: 49.29 (+4.17s | 7.8%) | Burlingame Aquatics | 05/20/2023 | PASA 2023 May LCM Meet | |
| 1258 | Flynn Chen | 53.47 | 8 | B Min | BB: 49.29 (+4.18s | 7.8%) | DeAnza Cupertino Aquatics | 05/16/2025 | 2025 DACA LC CBA Meet | |
| 1259 | Westley Berman | 53.48 | 8 | B Min | BB: 49.29 (+4.19s | 7.8%) | Palo Alto Stanford Aquatics | 06/22/2024 | Alto Beat The Heat Sat Sun | |
| 1260 | Mikhail Lagzdin | 53.48 | 8 | B Min | BB: 49.29 (+4.19s | 7.8%) | Olympic Cascade Aquatics | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 1261 | Carter Schwenk | 53.48 | 9 | B Min | BB: 49.29 (+4.19s | 7.8%) | Burlingame Aquatics | 05/17/2025 | 2025 LAMV SCM C B A+ | |
| 1262 | Caleb Hurley | 53.49 | 8 | B Min | BB: 49.29 (+4.20s | 7.9%) | San Ramon Valley Aquatics | 05/11/2024 | SRVA LCM CBBB+ | |
| 1263 | Shayne Zhang | 53.49 | 8 | B Min | BB: 49.29 (+4.20s | 7.9%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 1264 | Ethan Gao | 53.50 | 8 | B Min | BB: 49.29 (+4.21s | 7.9%) | California Dolphins Swim Team | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 1265 | Elliott Linsmeier | 53.50 | 9 | B Min | BB: 49.29 (+4.21s | 7.9%) | Ramona Swim Team | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 1266 | Matthew Bennett | 53.50 | 9 | B Min | BB: 49.29 (+4.21s | 7.9%) | Pipeline Swimming | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 1267 | Jose Perez | 53.50 | 9 | B Min | BB: 49.29 (+4.21s | 7.9%) | Lincoln City Swim Club | 04/26/2025 | April Invitational 2025 | |
| 1268 | Darryl Davis | 53.50 | 8 | B Min | BB: 49.29 (+4.21s | 7.9%) | Pueblo County Swim Team | 06/06/2025 | 2025 CO La Junta Invitational | |
| 1269 | Shay Jain | 53.50 | 8 | B Min | BB: 49.29 (+4.21s | 7.9%) | Palo Alto Stanford Aquatics | 05/24/2025 | 2025 Mike Snyder Memorial | |
| 1270 | Kai Christian | 53.51 | 9 | B Min | BB: 49.29 (+4.22s | 7.9%) | Swim Melbourne | 05/23/2025 | 2025 Dr Aspi Doctor Memorial Invitational | |
| 1271 | Cameron Lane | 53.51 | 8 | B Min | BB: 49.29 (+4.22s | 7.9%) | Tide Swimming | 07/11/2024 | 2024 VSI Regional Summer Awards | |
| 1272 | Romeo Ottaviano | 53.53 | 8 | B Min | BB: 49.29 (+4.24s | 7.9%) | Sarasota Sharks | 05/16/2025 | 2025 SYS Memorial Meet | |
| 1273 | Maxwell Li | 53.54 | 8 | B Min | BB: 49.29 (+4.25s | 7.9%) | Episcopal AmberJax | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 1274 | Kyle Garcia-Celis | 53.56 | 10 | B Min | BB: 49.29 (+4.27s | 8.0%) | Sarasota Tsunami Swim Team | 06/07/2025 | 2025 SRQ SUMMER AGE GROUP MEET | |
| 1275 | Evan McGuire | 53.56 | 9 | B Min | BB: 49.29 (+4.27s | 8.0%) | Texas Gold | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 1276 | Sullivan Vaira | 53.56 | 8 | B Min | BB: 49.29 (+4.27s | 8.0%) | Billings YMCA | 06/23/2023 | 2023 RST Rushmore Classic Swim Meet | |
| 1277 | Shu Peng | 53.58 | 7 | B Min | BB: 49.29 (+4.29s | 8.0%) | Aquajets Swim Team | 06/26/2025 | 2025 MN AQJT Aquajets Summer Spectacular | |
| 1278 | Bates Canada | 53.58 | 9 | B Min | BB: 49.29 (+4.29s | 8.0%) | Bolles School Sharks | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 1279 | Luka Radchenko Avondo | 53.59 | 8 | B Min | BB: 49.29 (+4.30s | 8.0%) | Nitro Swimming | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 1280 | Heath Pena | 53.59 | 8 | B Min | BB: 49.29 (+4.30s | 8.0%) | San Antonio Wave | 06/20/2025 | 2025 ST AAAA NS George Block Invite | |
| 1281 | Pablo Miranda | 53.59 | 10 | B Min | BB: 49.29 (+4.30s | 8.0%) | Saint Petersburg Aquatics | 05/16/2025 | 2025 SAINT PETE S 2nd LONG COURSE MEET | |
| 1282 | Nolan Whitt | 53.60 | 8 | B Min | BB: 49.29 (+4.31s | 8.0%) | SwimRVA | 04/20/2024 | 2024 SRVA Long Course Kick Off | |
| 1283 | Evan Yang | 53.61 | 8 | B Min | BB: 49.29 (+4.32s | 8.1%) | Lake Oswego Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 1284 | Gavin Yang | 53.63 | 9 | B Min | BB: 49.29 (+4.34s | 8.1%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 1285 | Connor Lau | 53.65 | 10 | B Min | BB: 49.29 (+4.36s | 8.1%) | Pacifica Sea Lions | 07/12/2025 | 2025 Silver State Championships | |
| 1286 | Oscar Patton | 53.65 | 9 | B Min | BB: 49.29 (+4.36s | 8.1%) | Dakota Riptide | 06/27/2025 | 2025 SD SFST Sanford Invite | |
| 1287 | Sebastian Guadarrama Retana | 53.65 | 9 | B Min | BB: 49.29 (+4.36s | 8.1%) | Tigres Uanl | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 1288 | Decker Sewell | 53.67 | 9 | B Min | BB: 49.29 (+4.38s | 8.2%) | Ski Hi Aquatics | 06/27/2025 | 2025 CO Alicia Leavitt Memorial Open | |
| 1289 | Moses Wang | 53.67 | 9 | B Min | BB: 49.29 (+4.38s | 8.2%) | Bainbridge Island Swim Club | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 1290 | Constantine Balduyeu | 53.68 | 9 | B Min | BB: 49.29 (+4.39s | 8.2%) | Bolles School Sharks | 04/11/2025 | 2025 April Classic | |
| 1291 | Colton Cain | 53.69 | 8 | B Min | BB: 49.29 (+4.40s | 8.2%) | Charlotte County Swimming | 05/16/2025 | 2025 SYS Memorial Meet | |
| 1292 | Jason Jang-Gutterman | 53.69 | 8 | B Min | BB: 49.29 (+4.40s | 8.2%) | Nitro Swimming | 04/26/2025 | 2025 ST NTRO Splashing Into Long Course | |
| 1293 | Matthew Sokotoff | 53.69 | 9 | B Min | BB: 49.29 (+4.40s | 8.2%) | Rochester Swim Club | 06/13/2025 | 2025 MN RSC Summerfest | |
| 1294 | Owen Richards | 53.69 | 9 | B Min | BB: 49.29 (+4.40s | 8.2%) | Pierre Swim Team | 07/11/2025 | 2025 SD Long Course State B Swim Meet | |
| 1295 | Leif Rinehardt | 53.71 | 8 | B Min | BB: 49.29 (+4.42s | 8.2%) | Northern Lights Swimming Assoc | 06/07/2024 | 2024 WFF Summer Explosion | |
| 1296 | William MacPhail | 53.71 | 9 | B Min | BB: 49.29 (+4.42s | 8.2%) | Edina Swim Club | 05/03/2025 | 2025 MN RSC Pentathlon | |
| 1297 | Calvin Prosinski | 53.73 | 7 | B Min | BB: 49.29 (+4.44s | 8.3%) | Unattached | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 1298 | Hawkins Blackstone | 53.73 | 8 | B Min | BB: 49.29 (+4.44s | 8.3%) | Nitro Swimming | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 1299 | Senge Laka | 53.74 | 8 | B Min | BB: 49.29 (+4.45s | 8.3%) | Cascadia Swimming | 11/01/2025 | Oregon City Fall Open 2025 | |
| 1300 | Forrest Chen | 53.75 | 10 | B Min | BB: 49.29 (+4.46s | 8.3%) | Lake Oswego Swim Club | 06/06/2025 | 2025 THSC June Invitational | |
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.