Here's how the day is set to unfold:

7am Help Desk opens on site

7.30am Competitors start to arrive

9.20am Hoofers Warm Up

9.30am Race Car Park A at Victoria Embankment closes

9.55am Wheelchair Half Marathon start

10am Full and Half Marathon start

10.20am Fun Run and the Don Scott Mini-marathon start

12.15pm Half Marathon Presentations

1.30pm Full Marathon Presentations

Experian's Charlotte Hogg will start the main races at 10am.

Drumming group BassToneSlap will also be giving a high energy performance to get runners off to a good start.

And England cricketers Stuart Broad, Graeme Swann and Ryan Sidebottom will be at a cricket roadshow site at 2.15pm. The players will be there as part of the ECB Ashes Meet The Winners tour.

Claire Bond, assistant race director, said: "There will be a whole host of activities going on at the race site at Victoria Embankment. Everybody is welcome to come and join in the activities whether a runner or spectator."