In 2017 days one and five at Cordova Dragway, as well as day 3 at Byron.
As a bonus, the day four route from Union Grove back to Cordova took the teams right through the town where I live, so I got to see them in "road trim".
In 2021 I attended day four, also at Byron...
And of course this year they were back at Byron again... I would have liked to have gone to day four, at Cordova, today, but I could not get both days off from work.