Went for final run yesterday evening. Just a short twenty minutes round the block at very slow pace. Wore my heart rate monitor to make sure I didn't go too fast. Legs felt a bit heavy before I went out but this morning they feel fine. I think physically I'm ready for the challenge. I know I should run well but that doesn't stop me feeling any less nervous. Just going to spend the day at home. Resting, fueling and, of course, drinking plenty of water.