A unique, once in a lifetime opportunity to run under the River Thames in a quirky evening event aimed at those who like both a physical and mental challenge too !

The start of the race is set in the historic and beautiful surroundings of Greenwich in London,  right next to the iconic Cutty Sark.

The Tunnel 10km London run begins inside the Greenwich foot tunnel and heads towards the Mudchute exit underneath the River Thames.  27 laps of the tunnel to complete this mentally tough challenge !!!

Medals, water and snack for all finishers and race times and finish positions published within a day of the event.

Race day number collection registration desk opens an hour and a half before the race begins. Staggered start off the descending steps in 10 second intervals.