directly from NHRAs webpage
Can I watch All Access on my Roku?
Yes, you can watch All Access on your Roku device. Go to the Roku store and search for NHRA All Access to download the app.
from roku.com
NHRA All Access
Developer: Cleeng
National Hot Rod Association brings the thrill of live drag racing right to your living room with NHRA All Access. Featuring live, all-day video coverage from NHRA Mello Yello Drag Racing Series and ability to view previously recorded races as Video On Demand. See all racing classes including Top Fuel Dragster, Funny Car, Pro Stock, and Pro Stock Motorcycle.