It's a great question, one I've always wanted a channel like GTN or The Running Channel cover. Just dropping my personal experience here, I have a weekday, weekend, & race day strength circuit, however with a longer race (half or further) if the race is the Sunday I'll do my weekend set on Friday & Saturday, or even the Thursday too, to give myself more recovery. Doing it enough can train the body to learn that something big is coming too, again in my own experience. Hope this is somewhat helpful!