After the last couple of workouts, you deserve a rest day. One more day of testing awaits you, so take it easy today and rest your legs!
Because you don't have to be in the gym today, I want you to spend that extra time working on your nutrition. Although I don't want you obsessing over calories, I do want you to pay attention to the food you put into your body. So hit the grocery store and pick out whole, healthy food that makes you feel good.
Trust me, fueling these workouts on chips and soda is not going to go well.