This year's Great North Run on September 16 will see more than 50,000 runners pounding the streets of Tyneside.
For many it is about having fun and raising money. But for Alyson Dixon the Great North Run is her livelihood - and every second really does count.
She needs to record a time of around one hour 13 minutes to put her in contention for the Half Marathon World Championships. The pressure really is on.