TOS Plan vs 50 hour days

I want to be able to take advantage of the 50 hour days in order to fit the opening stage in on Saturday.

If I start the rides in the calendar a day early, will they be marked complete or will it complete the ride(s) scheduled for that day?

The calendar works the same as it does for any other plan. If you want to ride on a different day and get the green “completed” colour then change the date first. I’ve just done this for my stage 1 workouts as I’m starting tomorrow (woohoo!)