The decisions you make on race day will have a major bearing on your performance so make sure you avoid some of these common marathon mistakes.  

Is it time to start thinking about your marathon race strategy and what to do on race day? If so, take a look at these five surprising marathon mistakes to make sure you’re not making any race-changing errors.

1. You misjudge your pace

Now you have probably heard a lot about the marathon and what to do and what not to do . The number one thing I can recommend is the pacing for the marathon. The marathon is a long way, and half way really shouldn't be considered half way. If you feel good at the half way stage, don't be fooled into thinking you can crack on and pick up the pace. More likely than not you'll hit around  the 20 mile mark (32km) and then have a long hard slog to the finish.

If you are feeling good at half way, just be happy in the knowledge that you feel good and wait until 20 miles. If you still feel good at 20 miles then you can increase the pace and see it through to the finish! Just remember, half way isn't really half way when it comes to the marathon.

2. You become dehydrated

You may or may not have practiced drinks during the build up to the marathon, and if you haven't, it isn't too much of a big deal, but shame on you. You’ve had weeks to practice so what's your excuse?! Anyway, drinks will be available on the course and it is important to take these on board even if you feel like you don't need them. The more you can drink early on the better you'll be later on in the race.

Keeping the body hydrated as much as possible during the early stages of the race can be crucial. When you feel like you are thirsty it is already too late, you’re dehydrated. So take on board more than just a sip of liquid during the first half of the race.

3. You don’t wear the right shoes

When you are standing on the start line and you look down at your shoes it shouldn't be the first time you have seen them on your feet. You want to have done at least a couple of decent runs in your marathon shoes. This is advice you have probably heard a thousand times before but it is quite surprising how many people wear shoes for the first time during the marathon.

It is just asking for trouble wearing shoes that you haven't worn before, especially over a distance that you might never have run before.

4. You don’t dress for the weather

Clothing is as important as your running shoes during the marathon. The temperature on race day can greatly depend on what you wear during the race. You’re going to be stood waiting for the start for quite a while before the gun goes and you’ll see lots of people chucking clothing during the first five minutes of the race.

My advice is to wear something that you are not going to worry about never seeing again. Make sure you keep warm before the start and then shed the layers once you start.

5. You don’t fuel your body correctly

Breakfast is the most important meal of the day, and this is just as important on race day. This is what's going to fuel you for the marathon. You should have practiced what you are going to eat beforehand, to make sure you don't have any "issues" with eating and then running.

You should eat what you normally eat before running and not change this just because you happen to be running a marathon! For me personally it is getting the caffeine intake just right, not too much so that I have problems before the race has finished.

Hopefully these tips help prevent you from making mistakes leading up to the marathon.