Stage 3 delivered a nail biting bunch finish and we are very excited to see what stage four brings. Everything is still left to play for and in addition to that, the route will be passing through Laura and Emma Trott's home town today so big crowds and an electric atmosphere are expected.
Here is a brief overview of the day ahead:
Stage four begins in Cheshunt in Hertfordshire, looping north to Letchworth Garden City before heading back south the finishing in Welwyn.
Sprints: Baldock and Codicote
Queen of the Mountain points: Hertford and Digswell Hill.
Yellow Leaders Jersey: Marianne Vos, Rabo Liv (NED)
Yodel Direct Points Jersey: Marianne Vos, Rabo Liv (NED)
Strava Queen of the Mountain Jersey: Sharon Laws, UnitedHealthcare Pro Cycling (GBR)
Best Young Rider Jersey: Rosella Ratto, Estado de Mexico Faren (ITA)
Leukaemia & Lymphoma Research Best British Rider Jersey: Lizzie Armitstead, Boels Dolmans (GBR)