Group set to run for Cure Leukaemia in the Arcadis Business Challenge.
Chocolate 5k to return in September.
Charities join forces to help Midlands most vulnerable.
City college help ensures free entry to runners.
More than 500 people took part in festive fun run with £15,000 expected to be raised.
Hundreds of Santas expected to join in the festive fun.
Registrations are open for jolly Jingle Bell Jog 2016.