Over half way through the summer series now, and with 7 races to go everyone is still in with a chance of winning the Grand Prix in its inaugural year. Results of Race 8, the June 5km training race are here HAC 2013 Summer Series Results. The next race is the Princes Risborough 10km on the 7th July, described by Runners World as a rural, out and back, undulating course of which 97% of runners who have run this race before would do it again. Pre- entry on the day is advised as the 500 places available last year were filled.