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 | |
|---|---|---|---|---|---|---|---|---|---|
| 551 | Zuriel Cariazo | 47.29 | 9 | BB Min | A: 43.09 (+4.20s | 8.9%) | Montrose Marlins Swim Club | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 552 | Artemii Ilchenko | 47.30 | 8 | BB Min | A: 43.09 (+4.21s | 8.9%) | San Antonio Wave | 05/16/2025 | 2025 ST AAAA NS Salute To The Troops | |
| 553 | Sebastian DiDia | 47.30 | 8 | BB Min | A: 43.09 (+4.21s | 8.9%) | Newport Beach Swimming | 07/25/2024 | 2024 CA SCS GWSC Summer A G Champs | |
| 554 | William Martus | 47.32 | 10 | BB Min | A: 43.09 (+4.23s | 8.9%) | Portland Aquatic Club | 11/14/2025 | GACC PAC 12 U Sprint Dual | |
| 555 | Brooks Switaj | 47.32 | 8 | BB Min | A: 43.09 (+4.23s | 8.9%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 556 | Arnesh Saraswat | 47.34 | 10 | BB Min | A: 43.09 (+4.25s | 9.0%) | SwimStrongsville | 07/12/2025 | LSSC Avon Classic | |
| 557 | Kensington Hull | 47.34 | 9 | BB Min | A: 43.09 (+4.25s | 9.0%) | Heartland Swim Assoc | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 558 | Levi Bynum | 47.37 | 9 | BB Min | A: 43.09 (+4.28s | 9.0%) | Alamo Area Aquatic Association | 07/25/2025 | 2025 ST AAAA NE LC End Of Season Splash | |
| 559 | Leon Escarcega Hernandez | 47.38 | 9 | BB Min | A: 43.09 (+4.29s | 9.1%) | Halcones Marinos Capn | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 560 | Jonathan Brunger | 47.39 | 10 | BB Min | A: 43.09 (+4.30s | 9.1%) | Longhorn Aquatics | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 561 | Carter Hollingsworth | 47.40 | 9 | BB Min | A: 43.09 (+4.31s | 9.1%) | Castle Rock Swimming | 06/06/2025 | 2025 CO FAST June Bonanza | |
| 562 | Forrest Foster | 47.42 | 9 | BB Min | A: 43.09 (+4.33s | 9.1%) | Alamo Area Aquatic Association | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 563 | Krish Samanta | 47.43 | 10 | BB Min | A: 43.09 (+4.34s | 9.2%) | Blast Sharks | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 564 | Grigorii Vasilenko | 47.45 | 8 | BB Min | A: 43.09 (+4.36s | 9.2%) | Legacy Aquatics | 05/30/2025 | LA OPEN 2025 | |
| 565 | Matthew McNeilly | 47.45 | 8 | BB Min | A: 43.09 (+4.36s | 9.2%) | CAC Stingrays Swim Team | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 566 | Graham McGuire | 47.46 | 7 | BB Min | A: 43.09 (+4.37s | 9.2%) | Swim Florida | 06/20/2025 | 2025 GCST MARK MCCAW SUMMER | |
| 567 | Carson Yin | 47.49 | 9 | BB Min | A: 43.09 (+4.40s | 9.3%) | Tualatin Hills Swim Club | 06/06/2025 | 2025 THSC June Invitational | |
| 568 | Marcus Jensen | 47.53 | 9 | BB Min | A: 43.09 (+4.44s | 9.3%) | Voltage Aquatics | 06/07/2025 | Summer Classics 2025 | |
| 569 | Savelii Dorofieiev | 47.53 | 9 | BB Min | A: 43.09 (+4.44s | 9.3%) | Saint Petersburg Aquatics | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | |
| 570 | Jayden Huang | 47.53 | 9 | BB Min | A: 43.09 (+4.44s | 9.3%) | Harbor Aquatics Club | 05/02/2025 | 2025 PN BC May Flowers | |
| 571 | Maximiliano Frehe | 47.54 | 9 | BB Min | A: 43.09 (+4.45s | 9.4%) | T2 Aquatics | 05/23/2025 | 2025 T2 Aquatics Norris Foundation LC Meet | |
| 572 | James Goodwillie | 47.55 | 8 | BB Min | A: 43.09 (+4.46s | 9.4%) | Hanover Aquatics | 06/22/2024 | 2024 WAC Summer Sizzle Meet | |
| 573 | Mason Sovich | 47.55 | 8 | BB Min | A: 43.09 (+4.46s | 9.4%) | Olympic Cascade Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 574 | Jack Peterson | 47.56 | 10 | BB Min | A: 43.09 (+4.47s | 9.4%) | Bend Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 575 | Benjamin Eubank | 47.56 | 9 | BB Min | A: 43.09 (+4.47s | 9.4%) | Nation\\\\\\'s Capital Swim Club | 04/26/2024 | 2024 Helen Wang Sunflower Classic | |
| 576 | Xander Liu | 47.56 | 9 | BB Min | A: 43.09 (+4.47s | 9.4%) | Sailfish | 05/04/2025 | 2025 ST TXLA 10 U End Of School Splash | |
| 577 | Colin Hui | 47.59 | 9 | BB Min | A: 43.09 (+4.50s | 9.5%) | Highlands Ranch Aquatics | 06/27/2025 | 2025 CO Zone 2 DU Meet | |
| 578 | Henry Jarchow | 47.60 | 8 | BB Min | A: 43.09 (+4.51s | 9.5%) | St Croix Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 579 | Gabriel Lydek | 47.61 | 9 | BB Min | A: 43.09 (+4.52s | 9.5%) | Firestone Akron Swim Team | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 580 | Liam Bundick | 47.62 | 9 | BB Min | A: 43.09 (+4.53s | 9.5%) | Alamo Area Aquatic Association | 05/16/2025 | 2025 ST AAAA NS Salute To The Troops | |
| 581 | Young Sun | 47.62 | 8 | BB Min | A: 43.09 (+4.53s | 9.5%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 582 | Alexander Stepania | 47.62 | 8 | BB Min | A: 43.09 (+4.53s | 9.5%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 583 | Nolan Rhamey | 47.63 | 9 | BB Min | A: 43.09 (+4.54s | 9.5%) | North Jeffco Swim Team | 04/13/2025 | 2025 CO NJ Spring LC Tri Meet | |
| 584 | Gustavo Granados | 47.63 | 9 | BB Min | A: 43.09 (+4.54s | 9.5%) | Fenix Swim Club | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 585 | Alexander Dmyterko | 47.64 | 9 | BB Min | A: 43.09 (+4.55s | 9.6%) | Wahoo\\\\\\'s of Wellington | 06/07/2025 | 2025 TCA Aaron Vaughn Memorial | |
| 586 | Aarav Narayan | 47.64 | 10 | BB Min | A: 43.09 (+4.55s | 9.6%) | California Gold | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 587 | Nathan Hsu | 47.64 | 10 | BB Min | A: 43.09 (+4.55s | 9.6%) | Nitro Swimming | 05/11/2025 | 2025 ST NTRO LC Springing Into May | |
| 588 | Charlie Vazac | 47.64 | 9 | BB Min | A: 43.09 (+4.55s | 9.6%) | St Croix Swim Club | 07/18/2025 | 2025 MN MAN Minnesota Regional Championship | |
| 589 | Jacob Akerley | 47.65 | 9 | BB Min | A: 43.09 (+4.56s | 9.6%) | Rocky Mountain Rapids | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 590 | Vincent Nan | 47.65 | 9 | BB Min | A: 43.09 (+4.56s | 9.6%) | Pacific Dragons Swim Team | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 591 | Asher Young | 47.66 | 9 | BB Min | A: 43.09 (+4.57s | 9.6%) | Terrapins Swim Team | 06/20/2025 | Zone 2 Last Chance To AG Champs | |
| 592 | Syd Bryant | 47.66 | 9 | BB Min | A: 43.09 (+4.57s | 9.6%) | Tsm Aquatics | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 593 | Samuel Leven | 47.66 | 9 | BB Min | A: 43.09 (+4.57s | 9.6%) | Alamo Area Aquatic Association | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 594 | Lok Zhang | 47.67 | 9 | BB Min | A: 43.09 (+4.58s | 9.6%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 595 | Bennett Gregory | 47.70 | 9 | BB Min | A: 43.09 (+4.61s | 9.7%) | YMCA of Austin Swim Alliance | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 596 | Charles Qiao | 47.70 | 8 | BB Min | A: 43.09 (+4.61s | 9.7%) | Firestone Akron Swim Team | 07/12/2025 | LSSC Avon Classic | |
| 597 | Calvin Warren | 47.70 | 10 | BB Min | A: 43.09 (+4.61s | 9.7%) | Hilltop Aquatic Swim Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 598 | Coen Yazdani | 47.71 | 9 | BB Min | A: 43.09 (+4.62s | 9.7%) | San Antonio Wave | 05/16/2025 | 2025 ST AAAA NS Salute To The Troops | |
| 599 | Wesley Lang | 47.71 | 8 | BB Min | A: 43.09 (+4.62s | 9.7%) | River Road Swim Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 600 | Wesley Wei | 47.72 | 9 | BB Min | A: 43.09 (+4.63s | 9.7%) | Seattle Metropolitan Aquatic C | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
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.