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 | |
|---|---|---|---|---|---|---|---|---|---|
| 701 | Adrian Goo | 50.15 | 10 | B Min | BB: 49.29 (+0.86s | 1.7%) | Walnut Creek Aquabears | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 702 | Anzel Annan | 50.17 | 9 | B Min | BB: 49.29 (+0.88s | 1.8%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 703 | George Duong | 50.22 | 10 | B Min | BB: 49.29 (+0.93s | 1.9%) | United Swim Club | 06/27/2025 | ATAC Long Course | |
| 704 | Evan Johnson | 50.22 | 9 | B Min | BB: 49.29 (+0.93s | 1.9%) | Bolles School Sharks | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 705 | Jenson Beal | 50.23 | 8 | B Min | BB: 49.29 (+0.94s | 1.9%) | Sporting Jax Aquatic Club | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 706 | Moses Duong | 50.23 | 10 | B Min | BB: 49.29 (+0.94s | 1.9%) | Firestone Akron Swim Team | 06/27/2025 | 2025 55th FREEDLANDER MEET | |
| 707 | Adam Kirk | 50.24 | 10 | B Min | BB: 49.29 (+0.95s | 1.9%) | Palo Alto Stanford Aquatics | 05/16/2025 | 2025 DACA LC CBA Meet | |
| 708 | Sebastian Feldman | 50.25 | 10 | B Min | BB: 49.29 (+0.96s | 1.9%) | Atlantis Swimming | 05/16/2025 | Busbey Invitational 2025 | |
| 709 | Ernesto Galindo Sandoval | 50.25 | 10 | B Min | BB: 49.29 (+0.96s | 1.9%) | Halcones Marinos Capn | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 710 | Seanan O'Neill | 50.26 | 10 | B Min | BB: 49.29 (+0.97s | 1.9%) | Sarasota Sharks | 05/16/2025 | 2025 SYS Memorial Meet | |
| 711 | Alex van den Berg | 50.27 | 9 | B Min | BB: 49.29 (+0.98s | 1.9%) | Swim Melbourne | 05/23/2025 | 2025 Dr Aspi Doctor Memorial Invitational | |
| 712 | Ethan Williams | 50.32 | 10 | B Min | BB: 49.29 (+1.03s | 2.0%) | SaltRakers Aquatic Club | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 713 | Rowan Sargent | 50.32 | 9 | B Min | BB: 49.29 (+1.03s | 2.0%) | Unattached | 07/11/2025 | 2025 CO NJ Firecracker Invite | |
| 714 | Johnathan Wang | 50.33 | 9 | B Min | BB: 49.29 (+1.04s | 2.1%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 715 | Cameron Mendelsohn | 50.35 | 8 | B Min | BB: 49.29 (+1.06s | 2.1%) | Life Time Minnesota Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 716 | Theodore McElderry | 50.36 | 10 | B Min | BB: 49.29 (+1.07s | 2.1%) | Utah Valley Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 717 | Darsh Pokale | 50.38 | 8 | B Min | BB: 49.29 (+1.09s | 2.2%) | South East Metro Sharks | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 718 | Gabriel Saldanha | 50.38 | 9 | B Min | BB: 49.29 (+1.09s | 2.2%) | Wasatch Front Fish Market | 08/01/2025 | 2025 LC Beehive Finale | |
| 719 | Hugo Pace | 50.39 | 10 | B Min | BB: 49.29 (+1.10s | 2.2%) | Pacifica Sea Lions | 05/17/2025 | 2025 LAMV SCM C B A+ | |
| 720 | Jayden Silveira | 50.40 | 10 | B Min | BB: 49.29 (+1.11s | 2.2%) | Fast Falcons | 06/20/2025 | 2025 FAST Independence Invitational | |
| 721 | Greyson Bobev | 50.40 | 8 | B Min | BB: 49.29 (+1.11s | 2.2%) | The Berkeley Barracudas | 06/06/2025 | 2025 TAMPA BAY SWIM CLASSIC | |
| 722 | Ivan Smarshchok | 50.43 | 8 | B Min | BB: 49.29 (+1.14s | 2.3%) | King Aquatic Club | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 723 | Daniel Klyzhko | 50.44 | 10 | B: 44.49 (+5.95s | 11.8%) | Cypress Fairbanks Swim Club | 06/13/2025 | 2025 ST ASC Firecracker | ||
| 724 | Samik Dangol | 50.46 | 9 | B Min | BB: 49.29 (+1.17s | 2.3%) | Stingrays Swim Team | 06/14/2024 | SwimRVA Summer Invitational | |
| 725 | Brock Hawrylak | 50.47 | 10 | B Min | BB: 49.29 (+1.18s | 2.3%) | Aquawolves Swimming | 04/25/2025 | 2025 CO Steve Drozda LC Shotgun | |
| 726 | Xavier Anderson | 50.50 | 9 | B Min | BB: 49.29 (+1.21s | 2.4%) | Albany Aquatic Association | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 727 | Steven Kimeu | 50.54 | 10 | B Min | BB: 49.29 (+1.25s | 2.5%) | Rochester Swim Club | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 728 | Romeo DelFoss | 50.57 | 8 | B Min | BB: 49.29 (+1.28s | 2.5%) | Swim Gators Str | 03/07/2026 | 2026 Lake Huron Regional Meet | |
| 729 | Udhiyan Gokulakrishnan | 50.58 | 8 | B Min | BB: 49.29 (+1.29s | 2.6%) | EL Paso Border Land Swim Team | 06/28/2024 | 2024 EPAP Jack White Classic | |
| 730 | Aiden Sanchez | 50.59 | 7 | B Min | BB: 49.29 (+1.30s | 2.6%) | Saint Petersburg Aquatics | 06/19/2025 | 2025 Shark Open | |
| 731 | Elwood Zygarlicke | 50.59 | 10 | B Min | BB: 49.29 (+1.30s | 2.6%) | West Express Swim Team | 05/16/2025 | 2025 MN STRM Spring Startup | |
| 732 | Mateo Sison | 50.60 | 10 | B Min | BB: 49.29 (+1.31s | 2.6%) | San Ramon Valley Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 733 | Kent Johnson | 50.61 | 9 | B Min | BB: 49.29 (+1.32s | 2.6%) | Area Tallahassee Aquatic Club | 06/27/2025 | ATAC Long Course | |
| 734 | Cannon Brown | 50.63 | 10 | B Min | BB: 49.29 (+1.34s | 2.6%) | Olympic Cascade Aquatics | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 735 | Amar Alwattar | 50.64 | 10 | B Min | BB: 49.29 (+1.35s | 2.7%) | Montclair Swim Team | 06/08/2024 | Orinda Aquatics LC C B BB+ Meet | |
| 736 | Calvin Larkin | 50.64 | 9 | B Min | BB: 49.29 (+1.35s | 2.7%) | Bend Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 737 | Ezra Howell | 50.65 | 10 | B Min | BB: 49.29 (+1.36s | 2.7%) | Sun Valley 5 B | 06/07/2025 | Summer Classics 2025 | |
| 738 | Marek Martini | 50.67 | 9 | B Min | BB: 49.29 (+1.38s | 2.7%) | Blue Dragons Swim Team | 11/14/2025 | Pumpkin Sprint Meet 2025 | |
| 739 | Luca Desset | 50.67 | 10 | B Min | BB: 49.29 (+1.38s | 2.7%) | Unattached | 06/20/2025 | 72nd Annual Ted Walker Invitational | |
| 740 | Arian Gavriljuk | 50.67 | 10 | B Min | BB: 49.29 (+1.38s | 2.7%) | Pro Swimming | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 741 | Riaan Purohit | 50.69 | 9 | B Min | BB: 49.29 (+1.40s | 2.8%) | Westlake Aquatic Facility | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 742 | Aaron Kim | 50.70 | 10 | B Min | BB: 49.29 (+1.41s | 2.8%) | EL Paso Border Land Swim Team | 07/19/2024 | 2024 BD LCM Border Champs | |
| 743 | Arthur Dodington | 50.71 | 9 | B Min | BB: 49.29 (+1.42s | 2.8%) | Edina Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 744 | Dylan Tian | 50.71 | 8 | B Min | BB: 49.29 (+1.42s | 2.8%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 745 | Ira Soto | 50.72 | 9 | B Min | BB: 49.29 (+1.43s | 2.8%) | Just Care Aquatics Tritons | 07/19/2024 | 2024 BD LCM Border Champs | |
| 746 | Fabian Aguirre Valero | 50.73 | 10 | B Min | BB: 49.29 (+1.44s | 2.8%) | Tigres Uanl | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 747 | Giovanni Chairez | 50.75 | 10 | B Min | BB: 49.29 (+1.46s | 2.9%) | High Performance Aquatic Club | 04/26/2025 | 2025 HPAC Banana Slug Beach Bash | |
| 748 | Finn Reutter | 50.75 | 9 | B Min | BB: 49.29 (+1.46s | 2.9%) | Sporting Jax Aquatic Club | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 749 | Anthony Fuentes | 50.76 | 10 | B Min | BB: 49.29 (+1.47s | 2.9%) | T2 Aquatics | 04/11/2025 | 2025 GCST Spring Invite | |
| 750 | Jack Anderson | 50.76 | 9 | B Min | BB: 49.29 (+1.47s | 2.9%) | Hydro Swim Club | 05/30/2025 | Hydro4 Summer Open | |
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.