I doubt that your body wanted to do this, given the prior day's effort. Way to get out there.
Yes, I was pretty tired. Gave myself permission to go as slowly as I wanted, which helped a lot ... except on the 5x hills, where I pushed a bit. The last 3 miles were so slow—and the sun was gone—that I was really getting cold.
My rest day today is feeling deserved.
Enjoy the rest!! What a weekend!