London, 22nd April 2018. Runners in the mass and fun runner race reach the iconic Tower Bridge at mile 12. Record numbers of runners are taking part in the famous race - just over 47,000 registered and around 41,000 have picked up their race packs at the start. Despite many struggling with the with the hot and sunny weather along the route, the race is still expected to be on track to beat previous finish like numbers, too.
