Don't get caught up in the surge of the runners in take off, if you do, check yourself, pull back and slow down, you've 26.2 miles yet to go!!
Stay focused on your technique throughout the race to avoid fatigue setting in prematurely.
Put some Celtic Salt in one of your water bottles or use an electrolyte tablet. Put half isotonic drink and half water in another water bottle.
Relax, relax, relax and enjoy the race, look around you, enjoy the cheering spectators, they'll drive you on.
There's nothing like an incentive to get you to the finish line be it your favourite meal or a treat of some sort like a spa day!
Click here for some great advice from my fellow ChiRunning instructor Catherina McKiernan.
Click here for some more great advice from my other fellow ChiRunning instructor Mary Jennings of Forget the Gym.
Good luck to everyone taking part this year!