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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2301 | Blake Boyer | 51.01 | 9 | B Min | BB: 49.29 (+1.72s | 3.4%) | Enfinity Aquatic Club | 06/05/2026 | STAR Andrew E Hartle Invitational | |
| 2302 | Ezekiel Ribellia | 51.02 | 9 | B Min | BB: 49.29 (+1.73s | 3.4%) | Velocity Swimming | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 2303 | James Gillis | 51.03 | 10 | B Min | BB: 49.29 (+1.74s | 3.4%) | YMCA of the Triangle Area Swim | 05/15/2026 | 2026 EAC Memorial Invite | |
| 2304 | Lorenzo Rosa Ibanez | 51.03 | 8 | B Min | BB: 49.29 (+1.74s | 3.4%) | Minnetonka Swim Club | 06/05/2026 | 2026 MN NSAC Summer Invite | |
| 2305 | Adrian Winter | 51.03 | 9 | B Min | BB: 49.29 (+1.74s | 3.4%) | Miller Swim Club | 07/24/2026 | 2026 SD Long Course State Championship | |
| 2306 | Rex Landry | 51.03 | 9 | B Min | BB: 49.29 (+1.74s | 3.4%) | Treasure Coast Aquatics | 05/22/2026 | 2026 Dr Aspi Doctor Memorial Swim Invite | |
| 2307 | Bryan Zhao | 51.04 | 9 | B Min | BB: 49.29 (+1.75s | 3.4%) | Columbia Aquatics Association | 04/17/2026 | 2026 CAC Spring Swimming To The 80's LCM Sw | |
| 2308 | Knox Turnipseed | 51.04 | 9 | B Min | BB: 49.29 (+1.75s | 3.4%) | Streamline Aquatics | 06/11/2026 | 2026 ST NIST George Block Invitational | |
| 2309 | Itai Nadav | 51.04 | 10 | B Min | BB: 49.29 (+1.75s | 3.4%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 2310 | Isidore Harris | 51.05 | 8 | B Min | BB: 49.29 (+1.76s | 3.4%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 2311 | Luke Jeong | 51.05 | 9 | B Min | BB: 49.29 (+1.76s | 3.4%) | Auburn Aquatics | 04/25/2026 | 2026 SE Jimi Flowers Spring Splash Copied | |
| 2312 | Samuel Olvera | 51.05 | 9 | B Min | BB: 49.29 (+1.76s | 3.4%) | Boerne Elite Aquatics | 04/18/2026 | 2026 ST ASC LC Kickoff | |
| 2313 | Ziyi Yang | 51.06 | 9 | B Min | BB: 49.29 (+1.77s | 3.5%) | Shawmut Aquatic Club | 05/16/2026 | 2026 NE CS Spring Fever | |
| 2314 | Layton Boots | 51.06 | 9 | B Min | BB: 49.29 (+1.77s | 3.5%) | Sioux Falls Swim Team | 07/24/2026 | 2026 SD Long Course State Championship | |
| 2315 | Daniel Brown | 51.06 | 10 | B Min | BB: 49.29 (+1.77s | 3.5%) | Episcopal AmberJax | 06/26/2026 | 2026 Planet Swim Summer Championships | |
| 2316 | Colin Lan | 51.06 | 8 | B Min | BB: 49.29 (+1.77s | 3.5%) | Tnt Swimming | 05/02/2026 | 2026 GPAC Flip Flop Invitational | |
| 2317 | Kaid Petersen | 51.07 | 8 | B Min | BB: 49.29 (+1.78s | 3.5%) | Port Angeles Swim Club | 07/10/2026 | 2026 Sizzlin Summer Splash Copied | |
| 2318 | Lukas Bergman | 51.09 | 9 | B Min | BB: 49.29 (+1.80s | 3.5%) | Rushmore Swim Team | 07/18/2025 | 2025 SD State Long Course Meet | |
| 2319 | Alexander Jewison | 51.09 | 7 | B Min | BB: 49.29 (+1.80s | 3.5%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 2320 | Robert Karpenko | 51.09 | 8 | B Min | BB: 49.29 (+1.80s | 3.5%) | University Place Aquatic Club | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 2321 | Grayson Horne | 51.10 | 9 | B Min | BB: 49.29 (+1.81s | 3.5%) | Racer X Aquatics | 06/12/2025 | Holtrey Summer Classic | |
| 2322 | Quinn Sengpiel | 51.10 | 10 | B Min | BB: 49.29 (+1.81s | 3.5%) | La Crosse Area Family YMCA Swi | 05/30/2026 | 2026 MN RSC Summer Jam | |
| 2323 | Odin Otterstrom | 51.10 | 10 | B Min | BB: 49.29 (+1.81s | 3.5%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 2324 | Colin Kershner | 51.10 | 10 | B Min | BB: 49.29 (+1.81s | 3.5%) | Greenwood Tiger Sharks | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 2325 | Vaughn Mahl | 51.10 | 9 | B Min | BB: 49.29 (+1.81s | 3.5%) | T2 Aquatics | 05/22/2026 | 2026 T2 Aquatics Norris Foundation LC Meet | |
| 2326 | Avri Dorn | 51.11 | 10 | B Min | BB: 49.29 (+1.82s | 3.6%) | Calvert Aquatics Club | 04/17/2026 | 2026 CAC Spring Swimming To The 80's LCM Sw | |
| 2327 | Evan Brown | 51.11 | 9 | B Min | BB: 49.29 (+1.82s | 3.6%) | One Aquatics | 07/31/2026 | 2026 NE NSSC New England Summer Championship | |
| 2328 | Rowan Rothman | 51.11 | 7 | B Min | BB: 49.29 (+1.82s | 3.6%) | Evergreen Hurricanes | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 2329 | Paul Johnston | 51.12 | 10 | B Min | BB: 49.29 (+1.83s | 3.6%) | Williamsburg Aquatic Club | 04/17/2026 | NOVA Long Course Kick Off | |
| 2330 | Aiden Bajracharya | 51.12 | 9 | B Min | BB: 49.29 (+1.83s | 3.6%) | Tac Titans | 07/24/2026 | 2026 TAC TITANS Closeout Meet | |
| 2331 | Bennett Calliham | 51.12 | 9 | B Min | BB: 49.29 (+1.83s | 3.6%) | Loveland Swim Club | 06/27/2026 | 2026 CO Greeley Stampede | |
| 2332 | Reyansh Soni | 51.12 | 10 | B Min | BB: 49.29 (+1.83s | 3.6%) | Crimson Aquatics | 04/11/2026 | 2026 NE CS Season Opener | |
| 2333 | Isaiah Burdett | 51.12 | 9 | B Min | BB: 49.29 (+1.83s | 3.6%) | Waves Of Wilmington Inc | 04/25/2026 | 2026 WAVE Sprint Into LC | |
| 2334 | Jeffrey Lou | 51.13 | 9 | B Min | BB: 49.29 (+1.84s | 3.6%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 2335 | Jude Foote | 51.14 | 9 | B Min | BB: 49.29 (+1.85s | 3.6%) | Hilltop Aquatic Swim Team | 08/01/2025 | 2025 LC Beehive Finale | |
| 2336 | Myles Self | 51.14 | 9 | B Min | BB: 49.29 (+1.85s | 3.6%) | YMCA of the Triangle Area Swim | 04/24/2026 | 2026 RSA Warm Up To LC Copied Copied | |
| 2337 | Arthur Prucha | 51.14 | 9 | B Min | BB: 49.29 (+1.85s | 3.6%) | Orca Aquatics | 05/30/2026 | 2026 NE RIAC Sail Away On The Ferry | |
| 2338 | Logan Stone | 51.14 | 9 | B Min | BB: 49.29 (+1.85s | 3.6%) | United Swim Club | 05/15/2026 | 2026 NE YNS May Specialty Meet | |
| 2339 | Kevin Liu | 51.14 | 10 | B Min | BB: 49.29 (+1.85s | 3.6%) | Arctic Aquatics | 05/08/2026 | 2026 NE CRA MIT Team Specialty LC Meet | |
| 2340 | Nathaniel Haley | 51.14 | 10 | B Min | BB: 49.29 (+1.85s | 3.6%) | North Shore Swim Club | 07/31/2026 | 2026 NE NSSC New England Summer Championship | |
| 2341 | Hudson Bratton | 51.15 | 10 | B Min | BB: 49.29 (+1.86s | 3.6%) | Lakeside Swim Team | 07/09/2026 | 46th Annual Seahawk Invitational | |
| 2342 | Theodore Stamatelos | 51.16 | 9 | B Min | BB: 49.29 (+1.87s | 3.7%) | Peddie Aquatic Association | 06/05/2026 | 2026 XCEL Meet Of XCellence | |
| 2343 | Avyukth Aravind | 51.17 | 9 | B Min | BB: 49.29 (+1.88s | 3.7%) | YMCA Fairfax County Reston | 04/11/2026 | 2026 Fox April Long Course Invitational | |
| 2344 | Oliver Parrish | 51.17 | 10 | B Min | BB: 49.29 (+1.88s | 3.7%) | Northern KY Clippers | 06/05/2026 | 25th Annual CLPR David Webb Meet | |
| 2345 | Joseph Hanik | 51.18 | 9 | B Min | BB: 49.29 (+1.89s | 3.7%) | Fairfax Foxes Swimming | 04/26/2024 | 2024 Helen Wang Sunflower Classic | |
| 2346 | Felix Jackson | 51.18 | 9 | B Min | BB: 49.29 (+1.89s | 3.7%) | Tualatin Hills Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 2347 | Colin Iamtsun | 51.20 | 8 | B Min | BB: 49.29 (+1.91s | 3.7%) | Rockingham Area Youth Swimming | 07/11/2026 | 2026 NE YNS July Last Chance Meet | |
| 2348 | Jeremy Pei | 51.20 | 10 | B Min | BB: 49.29 (+1.91s | 3.7%) | Columbia River Swim Team | 05/16/2026 | 2026 TEAM Showdown | |
| 2349 | Charlie Zink | 51.21 | 10 | B Min | BB: 49.29 (+1.92s | 3.7%) | Old Dominion Aquatic Club | 06/05/2026 | 2026 TIDE Schools Out Classic | |
| 2350 | Alexander Kolpakov | 51.21 | 9 | B Min | BB: 49.29 (+1.92s | 3.7%) | Tide Swimming | 06/05/2026 | 2026 TIDE Schools Out Classic | |
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.