Had decided to ride 70+ miles yesterday and found the last 25 much harder than I expected. Maybe looking back, I was a little naive, having had one of my toughest rides yet around the Chilterns on Wednesday and then leg day (albeit, not super tough) at the gym on Saturday, maybe I needed more time to recover? The last 20 the saddle was hurting, my legs had gone and I just wanted to be home, which doesn't happen often. (The last 20 were also roads I've done many times, so you lose the enjoyment a bit because of that).
Still, really enjoyed the ride up to the that point, some lovely roads and I've actually got some sun burn!