What about odd distances (7k, 4-Miler, etc.), will they count to a series?

YES, they will. The 7k & 4-Miler distances will go to the 5k. The 13k & 15k distances will go to the 10k
Series. Anything 10 miles and longer will go to the Endurance Series. The Back of the Pack Series is eligible
for these events as well.