I know from having run the New York Marathon in 2015 (my one and only) how the nerves can really start to play up ahead of the event. In the last week of training, when I no longer had mind-boggling practice runs to achieve, I started to wonder if I really could do this thing.

Whether you're doing the marathon or are a newbie runner getting ready for your first 5K, it's common to freak out before a race, says Dr Victor Thompson, sports psychologist and a triathlon survivor himself.

"What you do in the last few days has a

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One week to go

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One day to go

Race day

Recovery

5 tips for overcoming the wall by Dr Josephine Perry