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 | |
|---|---|---|---|---|---|---|---|---|---|
| 601 | Archie McCallum | 46.68 | 7 | BB Min | A: 43.09 (+3.59s | 7.7%) | Poseidon Aquatic Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 602 | Liam Reyes | 46.70 | 10 | BB Min | A: 43.09 (+3.61s | 7.7%) | Sparks Piranhas Swim Team | 05/23/2025 | 2025 Intermountain Classic Long Course Meet | |
| 603 | Levi Cheung | 46.70 | 8 | BB Min | A: 43.09 (+3.61s | 7.7%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 604 | Mason Sovich | 46.71 | 9 | BB Min | A: 43.09 (+3.62s | 7.7%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 605 | Jonathan Li | 46.73 | 8 | BB Min | A: 43.09 (+3.64s | 7.8%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 606 | Luke Ready | 46.73 | 10 | BB Min | A: 43.09 (+3.64s | 7.8%) | Kennebec Valley YMCA | 07/11/2024 | 2024 ME 3rd Annual LCM Championships | |
| 607 | William Toole | 46.74 | 10 | BB Min | A: 43.09 (+3.65s | 7.8%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 608 | Wesley Clemens | 46.76 | 9 | BB Min | A: 43.09 (+3.67s | 7.8%) | Bay Club Aquatics | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 609 | Logan Liew | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | Streamliner Aquatics | 07/18/2025 | 2025 LCM Summer Championships | |
| 610 | Levi Bynum | 46.76 | 9 | BB Min | A: 43.09 (+3.67s | 7.8%) | Clover Aquatics | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 611 | Aiden Mao | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 612 | Dean Deliessche | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | Trident Aquatic Club | 08/06/2025 | 2025 Summer Elite Showcase | |
| 613 | Daniel Heilman | 46.76 | 10 | BB Min | A: 43.09 (+3.67s | 7.8%) | San Francisco Seals Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 614 | Luca Fu | 46.77 | 9 | BB Min | A: 43.09 (+3.68s | 7.9%) | Lakeridge Swim Team | 07/12/2025 | 2025 Silver State Championships | |
| 615 | David Rivera | 46.77 | 10 | BB Min | A: 43.09 (+3.68s | 7.9%) | Almaden Riptide | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 616 | Joseph Mohler | 46.78 | 10 | BB Min | A: 43.09 (+3.69s | 7.9%) | Tampa Bay Aquatic Club | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 617 | Yunus Mukhamadiev | 46.80 | 10 | BB Min | A: 43.09 (+3.71s | 7.9%) | Brentwood Seawolves | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 618 | Christian Kewley | 46.80 | 10 | BB Min | A: 43.09 (+3.71s | 7.9%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 619 | Santiago Pena | 46.80 | 9 | BB Min | A: 43.09 (+3.71s | 7.9%) | Harlingen Cisd Seal Team | 05/16/2026 | 2026 ST LC BAS May Swim Meet | |
| 620 | Reed Mock | 46.81 | 10 | BB Min | A: 43.09 (+3.72s | 7.9%) | South Orange County Aquatics | 06/13/2024 | 2024 CA SCS NOVA June Age Group Invite | |
| 621 | Nicholas Medina | 46.81 | 9 | BB Min | A: 43.09 (+3.72s | 7.9%) | Laker Swim | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 622 | Yunhan Song | 46.84 | 9 | BB Min | A: 43.09 (+3.75s | 8.0%) | Eastside Aquatic Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 623 | Lucas Jiang | 46.84 | 9 | BB Min | A: 43.09 (+3.75s | 8.0%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 624 | Evan Yang | 46.85 | 8 | BB Min | A: 43.09 (+3.76s | 8.0%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 625 | William Cao | 46.86 | 9 | BB Min | A: 43.09 (+3.77s | 8.0%) | Great Lakes Sailfish Swimming | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 626 | Angel Malave | 46.86 | 10 | BB Min | A: 43.09 (+3.77s | 8.0%) | Blue Marlins Of Hialeah Garden | 04/18/2026 | SCS Under The Sun Invitational | |
| 627 | Jasper Corrigan | 46.86 | 9 | BB Min | A: 43.09 (+3.77s | 8.0%) | Occoquan Swimming | 08/06/2025 | 2025 Summer Elite Showcase | |
| 628 | Iker Rodarte Ramirez | 46.87 | 9 | BB Min | A: 43.09 (+3.78s | 8.1%) | Tigres Uanl | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 629 | Henry Armenti | 46.87 | 10 | BB Min | A: 43.09 (+3.78s | 8.1%) | Riptide Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 630 | David Renko | 46.88 | 9 | BB Min | A: 43.09 (+3.79s | 8.1%) | Wasatch Front Fish Market | 06/27/2025 | WFFM Red White And Black 2025 | |
| 631 | Yichen Wang | 46.90 | 9 | BB Min | A: 43.09 (+3.81s | 8.1%) | Alto Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 632 | Bennett Kohlmeyer | 46.90 | 10 | BB Min | A: 43.09 (+3.81s | 8.1%) | Life Time Colorado Swim Club | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 633 | Ryan Lee | 46.91 | 10 | BB Min | A: 43.09 (+3.82s | 8.1%) | Highlands Ranch Aquatics | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 634 | Aaron Yoon | 46.93 | 9 | BB Min | A: 43.09 (+3.84s | 8.2%) | Pipeline Swimming | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 635 | Leon Ye | 46.94 | 10 | BB Min | A: 43.09 (+3.85s | 8.2%) | Issaquah Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 636 | Jayke Hung | 46.95 | 10 | BB Min | A: 43.09 (+3.86s | 8.2%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 637 | Landon Noble | 46.95 | 9 | BB Min | A: 43.09 (+3.86s | 8.2%) | Highlands Ranch Aquatics | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 638 | Kendrick Cui | 46.98 | 8 | BB Min | A: 43.09 (+3.89s | 8.3%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 639 | Lucas Wang | 46.98 | 10 | BB Min | A: 43.09 (+3.89s | 8.3%) | Chinook Aquatic Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 640 | Cameron Ecklof | 47.00 | 10 | BB Min | A: 43.09 (+3.91s | 8.3%) | Sporting Jax Aquatic Club | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 641 | Thomas Van Bruggen | 47.00 | 8 | BB Min | A: 43.09 (+3.91s | 8.3%) | Minnetonka Swim Club | 05/08/2026 | 2026 MN STRM Spring Startup | |
| 642 | Ethan Hartley | 47.01 | 10 | BB Min | A: 43.09 (+3.92s | 8.3%) | Quest Swimming | 06/27/2024 | NOVA Firecracker Classic | |
| 643 | Marcus Pass | 47.01 | 9 | BB Min | A: 43.09 (+3.92s | 8.3%) | Sioux Falls Swim Team | 05/09/2025 | 2025 SD SFST Ready For Long Course | |
| 644 | Jayan Naik | 47.01 | 10 | BB Min | A: 43.09 (+3.92s | 8.3%) | Capital of Texas Aquatics | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 645 | Matthew McNeilly | 47.01 | 9 | BB Min | A: 43.09 (+3.92s | 8.3%) | Colorado Stingrays Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 646 | Austin Mitchell | 47.02 | 10 | BB Min | A: 43.09 (+3.93s | 8.4%) | Valley Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 647 | Harry Huynh | 47.02 | 10 | BB Min | A: 43.09 (+3.93s | 8.4%) | Sunnyvale Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 648 | Ben Tollon | 47.03 | 9 | BB Min | A: 43.09 (+3.94s | 8.4%) | West Florida Lightning Aquatic | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 649 | Bodhi Lauby | 47.03 | 10 | BB Min | A: 43.09 (+3.94s | 8.4%) | Sea Devils | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 650 | Tripp Liberman | 47.04 | 10 | BB Min | A: 43.09 (+3.95s | 8.4%) | Rocky Mountain Rapids | 04/26/2025 | 2025 CO COSA Spring LC Kick Off | |
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.