Below is a list which covers most generic items (not everyone needs all of these):
Food: Eat a nutritious meal no different to what you’ve been eating during training.
Activity: Some people prefer to do absolutely nothing the night before a big race. Others prefer a recovery run of a couple of miles to keep the legs ticking over. Do whatever feels right to you.
Journey to start: Research the exact race start time as well as the route of your journey to get there. The last thing you want is to stress about is traffic or cancelled trains
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