Your race day eating plan

This article was published in Medibank Privates be. magazine (Spring 2017 edition) and Live Better website in the lead up to the 2018 Medibank Melbourne Marathon. Check it out here!

Fuel up and give it your best. Sports dietitian Tim McMaster shares what to eat before, during and after a fitness event.

Race day has arrived, but do you have a plan? All the effort in training can be undone very quickly with the wrong nutrition on race day, especially if you try anything you’re not used to. A good strategy is to break race day into three main segments – pre-race, during and post-race.


The aim of the pre-race meal is to top-up the fuel storage, or carbohydrates, in your body. It’s best to have foods that are familiar to you, as the pre-race meal can make or break your opportunity to reach that personal best.

About 90-120 minutes before, begin with a carbohydrate-based meal that is low in protein, fat and dietary fibre. We cut these down because at this stage they delay digestion, taking blood away from the working muscles and into the intestines. If you add the jolting movement that comes with running, you’ve got a recipe for disaster!

Easy to digest options can include yoghurt and fruit with the skin removed, a small bowl of ‘low-ish’ fibre cereal with fresh fruit, a couple of slices of toast, pikelets or dry biscuits with jam or honey. If you’re feeling the pre-race jitters, homemade smoothies, yoghurt or sports drinks can also be a great option.

Make sure you’re well hydrated leading up to the race. It’s a common mistake to overdrink on the day so avoid the unwanted toilet stops by only having small amounts of fluid before the start gun.

During the race

If you’re running for less than an hour there is generally no need to consume any carbohydrates during the race, but you will if you’re doing the half or the full marathon. This is because the body has only enough carbohydrate fuel to last around 60-75 minutes of exercise.

The key is to delay the burning of energy as long as possible by adding fuel to the stockpiles in your body. Sports foods like carb gels/confectionary and sports drinks can help here. They are designed for rapid digestion, sending glucose through the bloodstream and into exercising muscles.

It’s important to note that timing is crucial, as carb gels need to be taken with 100-150 ml of water to help speed up digestion.

Have a plan of attack and spend some time analysing the course map, highlight the points of the track where you will need to take on added fuel. As a starting point, aim for a minimum of 30 g of carbohydrate or roughly one gel every 45 minutes.

Keep hydration in the back of your mind, as getting in enough fluid and electrolytes is important. However, it’s a fine line between rehydrating and overhydrating, so watch the pace your body hydrates and plan how much water you’ll have during the race.


Now that the race is over, it’s time to focus on properly slowing down your body into a healthy state. The best way to do this is to follow the Four Rs to Recovery:

  • Repair and refuel by consuming protein and carbohydrate, within 30 minutes of finishing.
  • Rehydrate with water or milk, as milk will help replace fluid, carbohydrate, electrolytes and some protein.
  • Rest up! It’s important to practice any nutrition a number of times to see how your body copes, then choose the pre-race meal that suits you best. Remember, not trying anything new is essential when being prepared for this big day!

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