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 | |
|---|---|---|---|---|---|---|---|---|---|
| 901 | Giovanni Bigelow | 48.89 | 10 | BB Min | A: 43.09 (+5.80s | 11.9%) | Thunderbird Aquatic Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 902 | Gregory Rucker | 48.95 | 10 | BB Min | A: 43.09 (+5.86s | 12.0%) | Firestone Akron Swim Team | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 903 | Dylan Jablonski | 48.95 | 7 | BB Min | A: 43.09 (+5.86s | 12.0%) | Swim Fort Lauderdale | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 904 | Jayden Jiang | 48.95 | 10 | BB Min | A: 43.09 (+5.86s | 12.0%) | Circle C Select Swim Team | 04/25/2026 | 2026 ST CCSS LC Unclassified | |
| 905 | Rain Liu | 48.96 | 10 | BB Min | A: 43.09 (+5.87s | 12.0%) | Rancho San Dieguito | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 906 | Grayson Bennett | 48.96 | 8 | BB Min | A: 43.09 (+5.87s | 12.0%) | Spokane Waves Aquatic Team | 04/17/2026 | 2026 Shark Attack Copied | |
| 907 | Rhys Beyeler-Evans | 48.97 | 10 | BB Min | A: 43.09 (+5.88s | 12.0%) | Piedmont Swim Team | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 908 | Charles Fikhman | 48.97 | 9 | BB Min | A: 43.09 (+5.88s | 12.0%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 909 | Arick Yuan | 49.00 | 10 | BB Min | A: 43.09 (+5.91s | 12.1%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 910 | Ayansh Sinha | 49.01 | 10 | BB Min | A: 43.09 (+5.92s | 12.1%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 911 | Grant Zimmermann | 49.02 | 10 | BB Min | A: 43.09 (+5.93s | 12.1%) | YMCA of the Triangle Area Swim | 06/14/2024 | SwimRVA Summer Invitational | |
| 912 | Liam Lawson | 49.02 | 10 | BB Min | A: 43.09 (+5.93s | 12.1%) | Lake Oswego Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 913 | Ico Tamayo | 49.02 | 9 | BB Min | A: 43.09 (+5.93s | 12.1%) | Cali Piranha Swim Team | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 914 | Parker Lozes | 49.04 | 9 | BB Min | A: 43.09 (+5.95s | 12.1%) | Colorado Stingrays Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 915 | Joshua Vitale | 49.04 | 10 | BB Min | A: 43.09 (+5.95s | 12.1%) | Lake Oswego Swim Club | 06/26/2025 | 2025 Howard Jones Open | |
| 916 | Thiago Ronda | 49.06 | 8 | BB Min | A: 43.09 (+5.97s | 12.2%) | Swim Florida | 05/02/2026 | 2026 Sea Dragon May Open | |
| 917 | Aiden Jamali | 49.06 | 10 | BB Min | A: 43.09 (+5.97s | 12.2%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 918 | Milo Pangborn | 49.06 | 9 | BB Min | A: 43.09 (+5.97s | 12.2%) | Foxjets Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 919 | Jeremy Lyu | 49.06 | 10 | BB Min | A: 43.09 (+5.97s | 12.2%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 920 | Abraham Carver | 49.07 | 9 | BB Min | A: 43.09 (+5.98s | 12.2%) | Saint Petersburg Aquatics | 05/16/2025 | 2025 SAINT PETE S 2nd LONG COURSE MEET | |
| 921 | Henry Fransen Weinberger | 49.07 | 8 | BB Min | A: 43.09 (+5.98s | 12.2%) | Minnetonka Swim Club | 06/26/2025 | 2025 MN AQJT Aquajets Summer Spectacular | |
| 922 | Jayden Chen | 49.07 | 10 | BB Min | A: 43.09 (+5.98s | 12.2%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 923 | Isaac Marcuson | 49.08 | 10 | BB Min | A: 43.09 (+5.99s | 12.2%) | Aspire Aquatics of Colorado | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 924 | Michel Opp | 49.08 | 10 | BB Min | A: 43.09 (+5.99s | 12.2%) | Sporting Jax Aquatic Club | 05/03/2025 | SwimRise IMX IMR Challenge | |
| 925 | Mark Bossowski | 49.09 | 10 | BB Min | A: 43.09 (+6.00s | 12.2%) | Tampa Y Swimming | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 926 | Luca Yont-Schmitt | 49.09 | 10 | BB Min | A: 43.09 (+6.00s | 12.2%) | YMCA of Central Florida | 05/15/2026 | 2026 PA Long Course Invite | |
| 927 | Mateo Sison | 49.10 | 10 | BB Min | A: 43.09 (+6.01s | 12.2%) | San Ramon Valley Aquatics | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 928 | Fabian Aguirre Valero | 49.11 | 10 | BB Min | A: 43.09 (+6.02s | 12.3%) | Tigres Uanl | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 929 | James Forsyth | 49.11 | 10 | BB Min | A: 43.09 (+6.02s | 12.3%) | YMCA of Austin Swim Alliance | 05/08/2026 | 2026 ST ASC Cinco De Mayo | |
| 930 | Jay Dai | 49.12 | 10 | BB Min | A: 43.09 (+6.03s | 12.3%) | Alto Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 931 | Cameron Lim | 49.14 | 9 | BB Min | A: 43.09 (+6.05s | 12.3%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 932 | Rafael Wuttke | 49.15 | 9 | BB Min | A: 43.09 (+6.06s | 12.3%) | Saint Petersburg Aquatics | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 933 | Dhanvin Naviri | 49.15 | 10 | BB Min | A: 43.09 (+6.06s | 12.3%) | The Dolphins Portland Swimming | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 934 | Chezeq Morgos | 49.15 | 10 | BB Min | A: 43.09 (+6.06s | 12.3%) | Sea Dragon Aquatics | 05/03/2025 | 2025 Sea Dragon May Open | |
| 935 | River Morse | 49.15 | 10 | BB Min | A: 43.09 (+6.06s | 12.3%) | Swim Gym | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 936 | Teo Dickens | 49.16 | 9 | BB Min | A: 43.09 (+6.07s | 12.3%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 937 | Edward Lin | 49.18 | 10 | BB Min | A: 43.09 (+6.09s | 12.4%) | Waterloo Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 938 | Alonso Andrade | 49.19 | 10 | BB Min | A: 43.09 (+6.10s | 12.4%) | EL Paso Border Land Swim Team | 06/28/2024 | 2024 EPAP Jack White Classic | |
| 939 | Alexander Escalona | 49.21 | 10 | BB Min | A: 43.09 (+6.12s | 12.4%) | Great Illinois Swimmers | 08/06/2025 | 2025 Summer Elite Showcase | |
| 940 | Anthony Dimuzio | 49.21 | 10 | BB Min | A: 43.09 (+6.12s | 12.4%) | Pompano Beach Piranhas | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 941 | Cesar Barrientos Mart'nez | 49.21 | 10 | BB Min | A: 43.09 (+6.12s | 12.4%) | Splash | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 942 | Ryan Nguyen | 49.23 | 10 | BB Min | A: 43.09 (+6.14s | 12.5%) | Sporting Jax Aquatic Club | 04/10/2026 | 2026 April Classic | |
| 943 | Aaryan Indurkhya | 49.23 | 9 | BB Min | A: 43.09 (+6.14s | 12.5%) | Issaquah Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 944 | Jose Perez | 49.24 | 10 | BB Min | A: 43.09 (+6.15s | 12.5%) | Lincoln City Swim Club | 03/07/2026 | Valley Coast Swim League 2026 | |
| 945 | Bruce Chou | 49.25 | 10 | BB Min | A: 43.09 (+6.16s | 12.5%) | Jbarracudas Swim Team | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 946 | Kawika Cox | 49.25 | 10 | BB Min | A: 43.09 (+6.16s | 12.5%) | Kamehameha Swim Club | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 947 | Liam Adrian | 49.25 | 9 | BB Min | A: 43.09 (+6.16s | 12.5%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 948 | Emmett Curry | 49.26 | 10 | BB Min | A: 43.09 (+6.17s | 12.5%) | Seattle Metropolitan Aquatic C | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 949 | Atharv Choubey | 49.26 | 9 | BB Min | A: 43.09 (+6.17s | 12.5%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 950 | Thomas Cooke | 49.27 | 9 | BB Min | A: 43.09 (+6.18s | 12.5%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
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.