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 | |
|---|---|---|---|---|---|---|---|---|---|
| 651 | Sterling Stewart | 48.18 | 9 | BB Min | A: 43.09 (+5.09s | 10.6%) | South Lake Aquatic Club | 05/23/2025 | 2025 Dr Aspi Doctor Memorial Invitational | |
| 652 | Anthony Ryan | 48.19 | 8 | BB Min | A: 43.09 (+5.10s | 10.6%) | Valley Swim Team Phoenix | 06/14/2024 | 2024 Winchester Long Course Inviational | |
| 653 | Troy Cary | 48.21 | 9 | BB Min | A: 43.09 (+5.12s | 10.6%) | Alamo Area Aquatic Association | 05/16/2025 | 2025 ST ASC Spring Showcase | |
| 654 | Jaylen Chen | 48.21 | 9 | BB Min | A: 43.09 (+5.12s | 10.6%) | Riptide Swim Team | 07/18/2025 | 2025 MN STRM Minnesota Regional Championship | |
| 655 | Raizo Copp | 48.21 | 9 | BB Min | A: 43.09 (+5.12s | 10.6%) | King Aquatic Club | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 656 | Penghao Yu | 48.21 | 9 | BB Min | A: 43.09 (+5.12s | 10.6%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 657 | Bennett Wood | 48.22 | 9 | BB Min | A: 43.09 (+5.13s | 10.6%) | AquaStorm | 06/13/2025 | 2025 SD Aberdeen Summer High Point Swim Meet | |
| 658 | Jason Buhr | 48.23 | 9 | BB Min | A: 43.09 (+5.14s | 10.7%) | Pikes Peak Athletics | 05/17/2025 | 2025 CO Hilltopper Invite | |
| 659 | Benjamin Groves | 48.24 | 10 | BB Min | A: 43.09 (+5.15s | 10.7%) | Alamo Area Aquatic Association | 06/20/2025 | 2025 ST AAAA NS George Block Invite | |
| 660 | Ivan Petrov | 48.24 | 10 | BB Min | A: 43.09 (+5.15s | 10.7%) | Academy Aquatic Club | 05/16/2025 | 2025 SAINT PETE S 2nd LONG COURSE MEET | |
| 661 | Benjamin Noorda | 48.25 | 8 | BB Min | A: 43.09 (+5.16s | 10.7%) | Nitro Swimming | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 662 | Fedor Evstigneev | 48.26 | 8 | BB Min | A: 43.09 (+5.17s | 10.7%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 663 | Mateo Torrelli | 48.27 | 9 | BB Min | A: 43.09 (+5.18s | 10.7%) | Clearwater Aquatic Team | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 664 | Beckham Sleeth | 48.28 | 8 | BB Min | A: 43.09 (+5.19s | 10.7%) | Highlands Ranch Aquatics | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 665 | Kabir Singh | 48.28 | 10 | BB Min | A: 43.09 (+5.19s | 10.7%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 666 | Ruslan Kalinnikov | 48.30 | 7 | BB Min | A: 43.09 (+5.21s | 10.8%) | Olympus Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 667 | Chun Huang | 48.30 | 8 | BB Min | A: 43.09 (+5.21s | 10.8%) | Alamo Area Aquatic Association | 05/16/2025 | 2025 ST AAAA NS Salute To The Troops | |
| 668 | Ryan Zhang | 48.31 | 9 | BB Min | A: 43.09 (+5.22s | 10.8%) | Palo Alto Stanford Aquatics | 06/29/2024 | DACA LC C B A+ Meet | |
| 669 | Erik Hai | 48.32 | 9 | BB Min | A: 43.09 (+5.23s | 10.8%) | The Claremont Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 670 | Alex Liu | 48.32 | 8 | BB Min | A: 43.09 (+5.23s | 10.8%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 671 | Ellis Houghton | 48.34 | 7 | BB Min | A: 43.09 (+5.25s | 10.9%) | Georgia Coastal Aquatic Team | 05/23/2025 | EAJ Mayhem 2025 | |
| 672 | Miguel Ramirez | 48.34 | 8 | BB Min | A: 43.09 (+5.25s | 10.9%) | Blue Wave Swimming | 06/06/2025 | 2025 TAMPA BAY SWIM CLASSIC | |
| 673 | Moss Fano | 48.36 | 9 | BB Min | A: 43.09 (+5.27s | 10.9%) | Team Greenville | 06/12/2025 | Holtrey Summer Classic | |
| 674 | Van Yetter | 48.37 | 9 | BB Min | A: 43.09 (+5.28s | 10.9%) | T2 Aquatics | 04/11/2025 | 2025 GCST Spring Invite | |
| 675 | Anton Todd | 48.37 | 10 | BB Min | A: 43.09 (+5.28s | 10.9%) | Pierre Swim Team | 07/18/2025 | 2025 SD State Long Course Meet | |
| 676 | Arjun Jois | 48.38 | 7 | BB Min | A: 43.09 (+5.29s | 10.9%) | Houston Bridge Bats | 06/14/2025 | CCLR CEM Summer Beach Bash LCM Unclassified | |
| 677 | William Tate | 48.38 | 10 | BB Min | A: 43.09 (+5.29s | 10.9%) | Pueblo County Swim Team | 07/12/2025 | 2025 Canon City Pentathlon | |
| 678 | Michael Martin | 48.41 | 10 | BB Min | A: 43.09 (+5.32s | 11.0%) | SaltRakers Aquatic Club | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 679 | Lucas Shamshurin | 48.41 | 10 | BB Min | A: 43.09 (+5.32s | 11.0%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 680 | Neo Perera | 48.42 | 9 | BB Min | A: 43.09 (+5.33s | 11.0%) | Los Altos Mountain View Aquati | 05/17/2025 | 2025 LAMV SCM C B A+ | |
| 681 | Aidan Woods | 48.44 | 10 | BB Min | A: 43.09 (+5.35s | 11.0%) | Fort Collins Area Swim Team | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 682 | Rojan Kundey | 48.44 | 8 | BB Min | A: 43.09 (+5.35s | 11.0%) | Monocacy Aquatic Club | 06/14/2024 | 2024 Winchester Long Course Inviational | |
| 683 | Leo Gazzard | 48.44 | 8 | BB Min | A: 43.09 (+5.35s | 11.0%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 684 | Ian Chan | 48.45 | 10 | BB Min | A: 43.09 (+5.36s | 11.1%) | Trident Aquatic Club | 08/06/2025 | 2025 Summer Elite Showcase | |
| 685 | Hudson Nolan | 48.46 | 9 | BB Min | A: 43.09 (+5.37s | 11.1%) | San Antonio Wave | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 686 | Kyle Whitley | 48.46 | 9 | BB Min | A: 43.09 (+5.37s | 11.1%) | Fast Falcons | 06/20/2025 | 2025 FAST Independence Invitational | |
| 687 | Charles Crocker | 48.47 | 8 | BB Min | A: 43.09 (+5.38s | 11.1%) | Williamsburg Aquatic Club | 05/31/2024 | 2024 SwimRVA Success Bell | |
| 688 | Lawson Kroon | 48.47 | 8 | BB Min | A: 43.09 (+5.38s | 11.1%) | Pierre Swim Team | 06/28/2025 | 2025 SD Summer Starter | |
| 689 | Nicolas Bastida Gonzalez | 48.47 | 9 | BB Min | A: 43.09 (+5.38s | 11.1%) | Titanes de Tym | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 690 | Max Ong | 48.48 | 9 | BB Min | A: 43.09 (+5.39s | 11.1%) | Pacific Swim | 07/11/2025 | 2025 SI JBST All Ages NTS Meet | |
| 691 | Camden Kern | 48.48 | 8 | BB Min | A: 43.09 (+5.39s | 11.1%) | Cavalier Aquatics/Piedmont Fam | 07/12/2024 | 2024 CCA Summer Awards | |
| 692 | Silas Sebera | 48.49 | 8 | BB Min | A: 43.09 (+5.40s | 11.1%) | Nova of Virginia | 06/22/2024 | 2024 WAC Summer Sizzle Meet | |
| 693 | Brendan Moore | 48.50 | 9 | BB Min | A: 43.09 (+5.41s | 11.2%) | Perry Aquatic Club | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 694 | Arwin Safaee | 48.51 | 10 | BB Min | A: 43.09 (+5.42s | 11.2%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 695 | Kellan Yosay | 48.52 | 7 | BB Min | A: 43.09 (+5.43s | 11.2%) | SwimRVA | 05/31/2024 | 2024 SwimRVA Success Bell | |
| 696 | Asher Knapp | 48.52 | 8 | BB Min | A: 43.09 (+5.43s | 11.2%) | Tide Swimming | 06/07/2024 | 2024 TIDE Swimming Schools Out Classic | |
| 697 | Thiago Fragale | 48.53 | 10 | BB Min | A: 43.09 (+5.44s | 11.2%) | Lone Star Aquatic Club | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 698 | Derek Nichols | 48.53 | 9 | BB Min | A: 43.09 (+5.44s | 11.2%) | Alamo Area Aquatic Association | 07/25/2025 | 2025 ST AAAA NE LC End Of Season Splash | |
| 699 | Quinn Cobb | 48.54 | 9 | BB Min | A: 43.09 (+5.45s | 11.2%) | Foxjets Swim Team | 07/18/2025 | 2025 MN STRM Minnesota Regional Championship | |
| 700 | Odin Child | 48.58 | 10 | BB Min | A: 43.09 (+5.49s | 11.3%) | Wasatch Front Fish Market | 06/27/2025 | WFFM Red White And Black 2025 | |
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.