I think that you have to consider track locations. You don't want to have to zig zag across the whole state.

Thur -Brownstown or Union County
Fri - Lawrenceburg
Sat - Gas City
Sun - Kokomo

Wed-Kamp
Thur - Bloomington
Fri - Terre Haute
Sat - Haubstadt

I would rather have TH last, but for travel convenience this is what I would do.