USA Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1301 | Oliver Bark | 38.39 | 9 | BB Min | A: 37.59 (+0.80s | 2.1%) | Annapolis Swim Club | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 1302 | John Gurr | 38.39 | 10 | BB Min | A: 37.59 (+0.80s | 2.1%) | Inspire Swimming | 01/17/2026 | 2026 ST AAAA NS Frostbite | |
| 1303 | Rayn Chischilly-Moore | 38.39 | 9 | BB Min | A: 37.59 (+0.80s | 2.1%) | Centralia | 02/13/2026 | 2026 OR HS 5a 1 | |
| 1304 | Leo Liao | 38.39 | 10 | BB Min | A: 37.59 (+0.80s | 2.1%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 1305 | Michael Urbanovich | 38.39 | 10 | BB Min | A: 37.59 (+0.80s | 2.1%) | Trident Aquatic Club | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 1306 | Abraham Cheng | 38.41 | 10 | BB Min | A: 37.59 (+0.82s | 2.1%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 1307 | Arian Gavriljuk | 38.41 | 10 | BB Min | A: 37.59 (+0.82s | 2.1%) | Pro Swimming | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 1308 | William Pietras | 38.41 | 10 | BB Min | A: 37.59 (+0.82s | 2.1%) | Great Lakes Tritons | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 1309 | Henry Sutton | 38.41 | 10 | BB Min | A: 37.59 (+0.82s | 2.1%) | Fort Meigs YMCA Stingrays | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1310 | Cole Scruggs | 38.41 | 10 | BB Min | A: 37.59 (+0.82s | 2.1%) | SwimMAC Carolina | 02/14/2026 | 2026 SwimMAC Qualifier Festival | |
| 1311 | Benjamin Herrera | 38.42 | 10 | BB Min | A: 37.59 (+0.83s | 2.2%) | Crimson Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 1312 | Daniel Lin | 38.43 | 10 | BB Min | A: 37.59 (+0.84s | 2.2%) | Dads Club Swim Team | 10/18/2024 | 2024 FCST Oct Tri Meet | |
| 1313 | Collin Johnson | 38.43 | 10 | BB Min | A: 37.59 (+0.84s | 2.2%) | Machine Aquatics | 02/13/2026 | 39th Black History Swim Meet | |
| 1314 | Leon Foley | 38.43 | 10 | BB Min | A: 37.59 (+0.84s | 2.2%) | Sharks Swim Club | 01/10/2025 | 2025 Tracey Harper Santiago Memorial Meet | |
| 1315 | Maddix Loh | 38.43 | 9 | BB Min | A: 37.59 (+0.84s | 2.2%) | Sporting Jax Aquatic Club | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 1316 | Keayan Liang | 38.43 | 9 | BB Min | A: 37.59 (+0.84s | 2.2%) | Quince Orchard Swim Academy | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 1317 | Lucas Santos | 38.44 | 10 | BB Min | A: 37.59 (+0.85s | 2.2%) | Golden West Swim Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 1318 | Beckett Clasen | 38.44 | 10 | BB Min | A: 37.59 (+0.85s | 2.2%) | Cavalier Aquatics/Piedmont Fam | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 1319 | Owen Richards | 38.44 | 9 | BB Min | A: 37.59 (+0.85s | 2.2%) | Heartland Swim Assoc | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 1320 | David Preble | 38.44 | 10 | BB Min | A: 37.59 (+0.85s | 2.2%) | Kent County YMCA | 02/28/2026 | 2026 NE KCY A SENECY LEAGUE CHAMPS | |
| 1321 | Robert Braylovskiy | 38.44 | 10 | BB Min | A: 37.59 (+0.85s | 2.2%) | Cp-Ac Swimming | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1322 | Samuel Jernagan | 38.44 | 10 | BB Min | A: 37.59 (+0.85s | 2.2%) | Csp Tideriders | 02/27/2026 | Ozark Division I Championship | |
| 1323 | Nolan Porras | 38.44 | 9 | BB Min | A: 37.59 (+0.85s | 2.2%) | Long Island Express | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1324 | Youniss Mostafa | 38.45 | 9 | BB Min | A: 37.59 (+0.86s | 2.2%) | Cranston YMCA Marlins | 01/24/2026 | 2026 NE KCY New Year S Splash | |
| 1325 | Jack Herron | 38.45 | 10 | BB Min | A: 37.59 (+0.86s | 2.2%) | Hydra Aquatics | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1326 | Nolan Lucariello | 38.45 | 10 | BB Min | A: 37.59 (+0.86s | 2.2%) | Prince William Swim Club | 12/04/2025 | 14th Annual Swim Tri Speedo Winter Champs | |
| 1327 | Duke Guo | 38.46 | 9 | BB Min | A: 37.59 (+0.87s | 2.3%) | McAllen Swim Club | 02/13/2026 | 2026 ST HPAC STX Champs South | |
| 1328 | Derek Nichols | 38.46 | 9 | BB Min | A: 37.59 (+0.87s | 2.3%) | Alamo Area Aquatic Association | 12/12/2025 | 2025 ST AAAA NS Winter Wonderland | |
| 1329 | Michael Campbell | 38.46 | 9 | BB Min | A: 37.59 (+0.87s | 2.3%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/22/2025 | 2025 Royal Fall Cup | |
| 1330 | Brian Chen | 38.46 | 10 | BB Min | A: 37.59 (+0.87s | 2.3%) | David Douglas | 02/15/2025 | 2025 OR HS 6a 4 | |
| 1331 | Ian Chen | 38.46 | 10 | BB Min | A: 37.59 (+0.87s | 2.3%) | Long Island Aquatic Club | 02/20/2026 | 2026 MR Silvers Championship South HAUP | |
| 1332 | Joseph James | 38.47 | 10 | BB Min | A: 37.59 (+0.88s | 2.3%) | Southwest Stars Swim Club | 10/18/2025 | 2025 SLAC IMX Challenge Invitational | |
| 1333 | Domenico Petrini | 38.47 | 9 | BB Min | A: 37.59 (+0.88s | 2.3%) | Badger Swim Club,Inc. | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1334 | Marcello Rinaldi | 38.48 | 10 | BB Min | A: 37.59 (+0.89s | 2.3%) | Minnetonka Swim Club | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 1335 | Bosco Sung | 38.48 | 5 | BB Min | A: 37.59 (+0.89s | 2.3%) | Soda Fall | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 1336 | Jacob Berkowitz | 38.49 | 10 | BB Min | A: 37.59 (+0.90s | 2.3%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 1337 | Allister Georgiou | 38.49 | 10 | BB Min | A: 37.59 (+0.90s | 2.3%) | McGrath Marlins Swim Team | 10/11/2025 | 2025 SI RSD All Ages B C Meet | |
| 1338 | Keegan Kelly | 38.50 | 10 | BB Min | A: 37.59 (+0.91s | 2.4%) | Annapolis Swim Club | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 1339 | Rayce Shirey | 38.50 | 9 | BB Min | A: 37.59 (+0.91s | 2.4%) | Shoals Aquatic Club | 02/06/2026 | 2026 SES Region 3 Champions | |
| 1340 | Caleb Gorelik | 38.50 | 9 | BB Min | A: 37.59 (+0.91s | 2.4%) | Hydra Aquatics | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 1341 | Yixuan Zhu | 38.50 | 10 | BB Min | A: 37.59 (+0.91s | 2.4%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 1342 | Liam Robley | 38.51 | 10 | BB Min | A: 37.59 (+0.92s | 2.4%) | Huntsville Swim Association | 10/17/2025 | 2025 HSA Fran Norris Meet | |
| 1343 | Caelan Murphy | 38.51 | 9 | BB Min | A: 37.59 (+0.92s | 2.4%) | Shawmut Aquatic Club | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 1344 | Dylan Lenois | 38.51 | 8 | BB Min | A: 37.59 (+0.92s | 2.4%) | Badger Swim Club,Inc. | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 1345 | Nathaniel Herman | 38.51 | 10 | BB Min | A: 37.59 (+0.92s | 2.4%) | Lynchburg YMCA Swim Team | 03/19/2026 | 2026 USRY Short Course Champs | |
| 1346 | Keith Guo | 38.51 | 9 | BB Min | A: 37.59 (+0.92s | 2.4%) | Pacific Dragons Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 1347 | Austin Xue | 38.51 | 9 | BB Min | A: 37.59 (+0.92s | 2.4%) | Waterloo Swimming | 01/09/2026 | 2026 ST TXLA New Year S Classic Invite | |
| 1348 | Jack Siegenthaler | 38.51 | 10 | BB Min | A: 37.59 (+0.92s | 2.4%) | Tennessee Aquatics | 03/06/2026 | Speedo Southern Premier | |
| 1349 | Jaden Bae | 38.51 | 10 | BB Min | A: 37.59 (+0.92s | 2.4%) | Spartan Aquatic Club | 01/16/2026 | 2026 SE Ralph Crocker Classic | |
| 1350 | Savelii Dorofieiev | 38.52 | 9 | BB Min | A: 37.59 (+0.93s | 2.4%) | Saint Petersburg Aquatics | 02/06/2026 | 2026 TBAC Winter Meet Copied | |
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.