USA Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2551 | Oliver Chafin | 48.18 | 10 | B Min | BB: 47.69 (+0.49s | 1.0%) | SwimMAC Carolina | 03/20/2026 | 2026 SwimMAC Tar Heel States | |
| 2552 | Stephan Fesenko | 48.18 | 8 | B Min | BB: 47.69 (+0.49s | 1.0%) | Bolles School Sharks | 12/04/2025 | RAFC Winter Classic | |
| 2553 | Joon Cha | 48.18 | 9 | B Min | BB: 47.69 (+0.49s | 1.0%) | Sunnyvale Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 2554 | Christopher Magness | 48.18 | 10 | B Min | BB: 47.69 (+0.49s | 1.0%) | Nation\\\\\\'s Capital Swim Club | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 2555 | Terence Wu | 48.19 | 9 | B Min | BB: 47.69 (+0.50s | 1.0%) | Bellevue Club Swim Team | 02/27/2026 | 2026 PN Feb Age Group Invite,Div 3 Approved | |
| 2556 | Matthew Bennett | 48.19 | 10 | B Min | BB: 47.69 (+0.50s | 1.0%) | Pipeline Swimming | 12/12/2025 | 2025 HARRY MEISEL WEST | |
| 2557 | Wesley Brown | 48.19 | 10 | B Min | BB: 47.69 (+0.50s | 1.0%) | Atlantis Swimming | 10/17/2025 | 2025 OLY Fall Classic | |
| 2558 | Zerui Deng | 48.20 | 10 | B Min | BB: 47.69 (+0.51s | 1.1%) | Irvine Novaquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 2559 | Maximus Vargas | 48.20 | 9 | B Min | BB: 47.69 (+0.51s | 1.1%) | Centreville Swim Club | 02/07/2026 | 2026 MAKO QUALIFIER | |
| 2560 | Daniel Hnativ | 48.20 | 10 | B Min | BB: 47.69 (+0.51s | 1.1%) | Westport Weston Family YMCA Wa | 12/11/2025 | 2025 NE SHAWMUT Candy Cane Classic | |
| 2561 | Zane Patterson | 48.21 | 8 | B Min | BB: 47.69 (+0.52s | 1.1%) | Kamehameha Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 2562 | Kayden Hong | 48.21 | 9 | B Min | BB: 47.69 (+0.52s | 1.1%) | Badger Swim Club,Inc. | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 2563 | Anson Stowe | 48.22 | 10 | B Min | BB: 47.69 (+0.53s | 1.1%) | Gaston Gators | 03/07/2026 | RCST Pirate S Gold | |
| 2564 | Hampton Hamrick | 48.22 | 10 | B Min | BB: 47.69 (+0.53s | 1.1%) | Tornadoes Swim Team | 10/10/2025 | 2025 OR HEAT Fall Invitational | |
| 2565 | Conrad Wang | 48.22 | 8 | B Min | BB: 47.69 (+0.53s | 1.1%) | Tac Titans | 11/15/2025 | 2025 TAC TITANS Turkey Squad Meet | |
| 2566 | Lucas Putman | 48.22 | 10 | B Min | BB: 47.69 (+0.53s | 1.1%) | Frederick Area Swim Team | 09/26/2025 | RAC First Splash 2025 | |
| 2567 | Asher Amira | 48.22 | 10 | B Min | BB: 47.69 (+0.53s | 1.1%) | Chinook Aquatic Club | 10/18/2025 | 2025 PN IST Fall Open | |
| 2568 | Luka Drobentsov | 48.22 | 10 | B Min | BB: 47.69 (+0.53s | 1.1%) | Bravo Swim Team | 02/14/2026 | NMST BMHG February BC Invite 26 | |
| 2569 | Enoch Li | 48.22 | 10 | B Min | BB: 47.69 (+0.53s | 1.1%) | H2okie Aquatics | 11/07/2025 | 2025 HOKI November Invitational Copied | |
| 2570 | Shane Kirk | 48.22 | 8 | B Min | BB: 47.69 (+0.53s | 1.1%) | Bolles School Sharks | 02/20/2026 | 2026 Area 1 Spring Championships | |
| 2571 | Charlie Wang | 48.23 | 9 | B Min | BB: 47.69 (+0.54s | 1.1%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 2572 | Charles Gochenour | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Virginia Gators | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 2573 | Mason Lee | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Hydra Aquatics | 11/21/2025 | 2025 Fall Festivus | |
| 2574 | Alexandru Varga | 48.23 | 6 | B Min | BB: 47.69 (+0.54s | 1.1%) | Terrapins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 2575 | Orion Wu | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Central Queens Ym-Ywha | 09/27/2025 | 2025 MR SSC TYR September Sprint Invitational | |
| 2576 | Jack Rissman | 48.23 | 9 | B Min | BB: 47.69 (+0.54s | 1.1%) | Edina Swim Club | 01/09/2026 | 2026 MN FOXJ Winter Classic | |
| 2577 | Gavin Yang | 48.23 | 10 | B Min | BB: 47.69 (+0.54s | 1.1%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 2578 | August Crable | 48.24 | 10 | B Min | BB: 47.69 (+0.55s | 1.1%) | DC Dept Of Parks and Recreatio | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 2579 | William Toole | 48.25 | 10 | B Min | BB: 47.69 (+0.56s | 1.2%) | Pro Swimming | 03/06/2026 | 2026 PN PRO March Last Chance Intra Apprived | |
| 2580 | Daniel Tian | 48.25 | 10 | B Min | BB: 47.69 (+0.56s | 1.2%) | Germantown Swim Team | 01/16/2026 | 2026 Gabrielle Rose Tiger Classic | |
| 2581 | William Fry | 48.25 | 9 | B Min | BB: 47.69 (+0.56s | 1.2%) | Rockville Montgomery Swim Club | 01/16/2026 | 2026 RMSC January Intrasquad Meet | |
| 2582 | Lerone Davis | 48.25 | 8 | B Min | BB: 47.69 (+0.56s | 1.2%) | Manhattan Makos | 02/20/2026 | 2026 MR Metro Silver Central Champs WEST | |
| 2583 | Easton Fairbank | 48.25 | 8 | B Min | BB: 47.69 (+0.56s | 1.2%) | Flatiron Athletic Club | 03/13/2026 | Mile High Championship Invitational | |
| 2584 | Joshua Webster | 48.26 | 9 | B Min | BB: 47.69 (+0.57s | 1.2%) | Minnetonka Swim Club | 02/27/2026 | 2026 MN MTKA Minnesota Regional Championship | |
| 2585 | Aleksandr Sofronov | 48.26 | 10 | B Min | BB: 47.69 (+0.57s | 1.2%) | Laker Swim | 03/05/2026 | 2026 Florida Swimming FLAGS NORTH | |
| 2586 | Barrett Zubke | 48.26 | 9 | B Min | BB: 47.69 (+0.57s | 1.2%) | Sarasota Sharks | 02/28/2025 | 2025 Area 5 Spring Championships | |
| 2587 | Thomas Blumenschein | 48.27 | 9 | B Min | BB: 47.69 (+0.58s | 1.2%) | Tollefson Swimming | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 2588 | Jayden Davis | 48.27 | 10 | B Min | BB: 47.69 (+0.58s | 1.2%) | East Carolina Aquatics | 03/27/2026 | 2026 ECA ECSL Championships | |
| 2589 | Weston Leingang | 48.28 | 10 | B Min | BB: 47.69 (+0.59s | 1.2%) | Avon Swim Club | 03/06/2026 | 2026 CO 14 U Silver State | |
| 2590 | Joey Smith | 48.28 | 10 | B Min | BB: 47.69 (+0.59s | 1.2%) | Unified Aquatics Club | 02/27/2026 | 2026 OH BSC SC Regional Championships | |
| 2591 | Adrian Wachs | 48.28 | 9 | B Min | BB: 47.69 (+0.59s | 1.2%) | T2 Aquatics | 02/27/2026 | 2026 T2 Area 5 Championships | |
| 2592 | Ari Kautzer | 48.29 | 9 | B Min | BB: 47.69 (+0.60s | 1.2%) | Lakewood Ranch Swim Associatio | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 2593 | Luke Rubino | 48.29 | 9 | B Min | BB: 47.69 (+0.60s | 1.2%) | The Woodlands Swim Team | 10/25/2024 | 2024 TWST Halloween Meet | |
| 2594 | Nolan Loera | 48.29 | 9 | B Min | BB: 47.69 (+0.60s | 1.2%) | Prince William Swim Club | 01/17/2026 | 2026 Duck Bowl | |
| 2595 | Sammy Cerni | 48.29 | 9 | B Min | BB: 47.69 (+0.60s | 1.2%) | Great Lakes Sailfish Swimming | 03/12/2026 | 2026 OH SC Junior Championships | |
| 2596 | Jacob Meade | 48.30 | 10 | B Min | BB: 47.69 (+0.61s | 1.3%) | Great Lakes Tritons | 03/07/2026 | 2026 Lake Huron Regional Meet | |
| 2597 | Raf Rothfuss de la Asunc | 48.30 | 9 | B Min | BB: 47.69 (+0.61s | 1.3%) | SwimMAC Carolina | 02/14/2026 | 2026 SwimMAC Qualifier Festival | |
| 2598 | Alexander Buckner | 48.30 | 10 | B Min | BB: 47.69 (+0.61s | 1.3%) | DC Dept Of Parks and Recreatio | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 2599 | Mattis Shneyder | 48.30 | 10 | B Min | BB: 47.69 (+0.61s | 1.3%) | Matchpoint Nyc | 02/07/2026 | 2026 MR FREE Championships Meets Qualifier | |
| 2600 | Virgil McMullen | 48.30 | 10 | B Min | BB: 47.69 (+0.61s | 1.3%) | Lynchburg YMCA Swim Team | 12/04/2025 | 14th Annual Swim Tri Speedo Winter Champs | |
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.