13. Bank Time Early.
Go out hard as hell and bank as much time as possible in the first 10k. Time put in the bank earns interest, so if you bank time earlier it will be worth even more later in the race. This tactic also give you a good reason to weave at the start, which really helps get the blood flowing through your legs. Plus, the last 32k will feel so much easier and more relaxed as compared to the hard start.