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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1501 | Jett Merrey | 39.16 | 10 | BB Min | A: 37.59 (+1.57s | 4.0%) | Tollefson Swimming | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1502 | Ryan Karapostoles | 39.17 | 9 | BB Min | A: 37.59 (+1.58s | 4.0%) | Swim Melbourne | 02/06/2026 | 2026 Stanton C Craigie Memorial Invite | |
| 1503 | Ben Noorda | 39.17 | 9 | BB Min | A: 37.59 (+1.58s | 4.0%) | Nitro Swimming | 02/06/2026 | 2026 ST AQTX STX Champs North | |
| 1504 | Ethan Gaffin | 39.17 | 9 | BB Min | A: 37.59 (+1.58s | 4.0%) | Alamo Area Aquatic Association | 02/13/2026 | 2026 ST HPAC STX Champs South | |
| 1505 | Tanner Graham | 39.17 | 10 | BB Min | A: 37.59 (+1.58s | 4.0%) | Florida Atlantic Aquatics | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 1506 | Oliver Nielsen | 39.17 | 10 | BB Min | A: 37.59 (+1.58s | 4.0%) | Aquajets Swim Team | 12/05/2025 | 2025 MN AQJT 14 U Single Age State Meet Cop | |
| 1507 | Richmond Inger | 39.18 | 10 | BB Min | A: 37.59 (+1.59s | 4.1%) | Grosse Pointe Gators | 12/06/2025 | 2025 26 Super Fast And Furious Prelim Final | |
| 1508 | Jayden Davis | 39.18 | 10 | BB Min | A: 37.59 (+1.59s | 4.1%) | East Carolina Aquatics | 11/21/2025 | 2025 ECA Southeastern Classic | |
| 1509 | William Cardoso | 39.19 | 9 | BB Min | A: 37.59 (+1.60s | 4.1%) | Crimson Aquatics | 09/28/2025 | 2025 NE CRIM Battle Of The Branches Copied | |
| 1510 | Theodore Neese | 39.19 | 10 | BB Min | A: 37.59 (+1.60s | 4.1%) | Bend Swim Club | 02/04/2026 | 2026 Bend Swim Club Intersquad Challenger | |
| 1511 | Martin Li | 39.19 | 9 | BB Min | A: 37.59 (+1.60s | 4.1%) | Wave Aquatics | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 1512 | Marshall Kohout | 39.19 | 10 | BB Min | A: 37.59 (+1.60s | 4.1%) | Swim Omaha | 01/24/2026 | 2026 MW LSS Winterfest | |
| 1513 | Thomas O'Shea | 39.19 | 10 | BB Min | A: 37.59 (+1.60s | 4.1%) | Revolution Swim Club | 01/30/2026 | 2026 NE GS Silver Championships | |
| 1514 | Beck Merkle | 39.20 | 10 | BB Min | A: 37.59 (+1.61s | 4.1%) | Jersey Wahoos | 11/07/2025 | 2025 Mid Atlantic AG Championship Showdown | |
| 1515 | Ethan Su | 39.20 | 10 | BB Min | A: 37.59 (+1.61s | 4.1%) | Belmont Aquatic Team | 01/30/2026 | 2026 NE CS Silver Championships | |
| 1516 | Ezra Rosslee | 39.21 | 10 | BB Min | A: 37.59 (+1.62s | 4.1%) | Team Suffolk | 01/30/2026 | 2026 MR SSC Polar Bear Plunge | |
| 1517 | Chase Turlington | 39.21 | 9 | BB Min | A: 37.59 (+1.62s | 4.1%) | Tac Titans | 12/19/2025 | 2025 TAC TITANS Jingle Bells Meet | |
| 1518 | Wonmin Kim | 39.21 | 10 | BB Min | A: 37.59 (+1.62s | 4.1%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 1519 | Michael Parks | 39.21 | 10 | BB Min | A: 37.59 (+1.62s | 4.1%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1520 | Connor Wood | 39.22 | 9 | BB Min | A: 37.59 (+1.63s | 4.2%) | Unattached | 04/11/2025 | 2025 Boys Girls Clubs National Swim Champs | |
| 1521 | Terry Xiao | 39.22 | 8 | BB Min | A: 37.59 (+1.63s | 4.2%) | Trident Aquatic Club | 12/13/2025 | 2025 MR TRI Winter SCY Invitational | |
| 1522 | James Lee | 39.22 | 10 | BB Min | A: 37.59 (+1.63s | 4.2%) | SwimMAC Carolina | 01/23/2026 | 2026 NC SwimMAC Battle Of The Crown | |
| 1523 | Theodore Chartrand | 39.22 | 9 | BB Min | A: 37.59 (+1.63s | 4.2%) | Machine Aquatics | 10/04/2025 | 2025 Harvest Moon Invitational | |
| 1524 | Ian Chen | 39.22 | 10 | BB Min | A: 37.59 (+1.63s | 4.2%) | Long Island Aquatic Club | 11/21/2025 | 2025 MR LIAC Thanksgiving Invite | |
| 1525 | Mark Patten | 39.22 | 10 | BB Min | A: 37.59 (+1.63s | 4.2%) | North Palm Beach Swim Club | 11/21/2025 | 2025 NPB Turkey Invite | |
| 1526 | Hudson Grubbs | 39.23 | 10 | BB Min | A: 37.59 (+1.64s | 4.2%) | Ridgewood YMCA Breakers Swim T | 10/10/2025 | 2025 MR COND October Fall Festival | |
| 1527 | Jesus Castrellon | 39.23 | 10 | BB Min | A: 37.59 (+1.64s | 4.2%) | Texas Elite Swimming | 11/07/2025 | 2025 ST SCY Surge Shark Sizzler | |
| 1528 | Liam Somers | 39.24 | 10 | BB Min | A: 37.59 (+1.65s | 4.2%) | Longhorn Aquatics | 12/13/2025 | 2025 ST WOW Hot Chocolate Jamboree | |
| 1529 | Nolan Lu | 39.24 | 9 | BB Min | A: 37.59 (+1.65s | 4.2%) | DeAnza Cupertino Aquatics | 03/22/2025 | PSL SC CBA+ Meet | |
| 1530 | Aleksandr Sofronov | 39.24 | 10 | BB Min | A: 37.59 (+1.65s | 4.2%) | Laker Swim | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 1531 | Landon Gura | 39.25 | 9 | BB Min | A: 37.59 (+1.66s | 4.2%) | North Coast Aquatics | 11/08/2025 | HSA All Ages NTS | |
| 1532 | Robert Wasilewski | 39.25 | 10 | BB Min | A: 37.59 (+1.66s | 4.2%) | The St. James Swim Club | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 1533 | Noah Block | 39.25 | 9 | BB Min | A: 37.59 (+1.66s | 4.2%) | Team Suffolk | 12/11/2025 | 2025 MR HAUP Eagle Invitational | |
| 1534 | Beckett Macmillan | 39.25 | 9 | BB Min | A: 37.59 (+1.66s | 4.2%) | Oly Swimming | 01/10/2026 | 2026 PA Invite | |
| 1535 | Lochlan Kelly | 39.25 | 10 | BB Min | A: 37.59 (+1.66s | 4.2%) | Tuna Swim Club | 10/25/2025 | 2025 MN SDVL Halloween Spooktacular Copied | |
| 1536 | Domenico Petrini | 39.25 | 8 | BB Min | A: 37.59 (+1.66s | 4.2%) | Badger Swim Club,Inc. | 01/19/2026 | 2026 MR YMID MLK 8 Under Meet | |
| 1537 | Luke Wellen | 39.26 | 10 | BB Min | A: 37.59 (+1.67s | 4.3%) | Rockville Montgomery Swim Club | 11/14/2025 | 2025 RMSC November Dual Meet | |
| 1538 | Samuel Scalvini | 39.26 | 10 | BB Min | A: 37.59 (+1.67s | 4.3%) | Marlins Of Raleigh | 02/13/2026 | Speedo 2026 MOR Short Course Qualifier Meet | |
| 1539 | Paxton Coggins | 39.26 | 9 | BB Min | A: 37.59 (+1.67s | 4.3%) | Y-Spartaquatics Swim Club | 01/16/2026 | 2026 TNAQ JANUARY INVITATIONAL | |
| 1540 | Lucas Jiang | 39.26 | 9 | BB Min | A: 37.59 (+1.67s | 4.3%) | Santa Clara Swim Club | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | |
| 1541 | Leo Liao | 39.26 | 9 | BB Min | A: 37.59 (+1.67s | 4.3%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 1542 | Sebastian Bezboruah | 39.27 | 10 | BB Min | A: 37.59 (+1.68s | 4.3%) | Com Aquatics | 11/14/2025 | 2025 ST AAAA AH PW NC Invite | |
| 1543 | Timothy Chung | 39.27 | 10 | BB Min | A: 37.59 (+1.68s | 4.3%) | Long Island Aquatic Club | 01/30/2026 | 2026 MR SSC Polar Bear Plunge | |
| 1544 | Landon Angle | 39.27 | 10 | BB Min | A: 37.59 (+1.68s | 4.3%) | Oly Swimming | 10/17/2025 | 2025 OLY Fall Classic | |
| 1545 | Ezra Landsman | 39.27 | 10 | BB Min | A: 37.59 (+1.68s | 4.3%) | The Fish | 01/31/2026 | The 2026 Super FISH Bowl XVI | |
| 1546 | Timothy Batanov | 39.28 | 10 | BB Min | A: 37.59 (+1.69s | 4.3%) | Asphalt Green Unified Aquatics | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 1547 | Daniel Savchuk | 39.28 | 10 | BB Min | A: 37.59 (+1.69s | 4.3%) | Shawmut Aquatic Club | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 1548 | Keller Kirkpatrick | 39.29 | 8 | BB Min | A: 37.59 (+1.70s | 4.3%) | Lake Oswego Swim Club | 12/05/2025 | 2025 Tualatin Hills Holiday Classic | |
| 1549 | Arick Yuan | 39.30 | 9 | BB Min | A: 37.59 (+1.71s | 4.4%) | Santa Clara Swim Club | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | |
| 1550 | Kristopher Odom | 39.30 | 9 | BB Min | A: 37.59 (+1.71s | 4.4%) | Upper Valley Aquatic Club | 01/30/2026 | 2026 NE UVAC Silvers | |
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.