The Ryedale Running Festival takes place on Sunday July 30, and has an event for anyone of any ability. Based in Ampleforth, it offers races for those who want to push and test themselves, or for those who just want to go out and move their legs: a half marathon, plus 10k and 5k races. All start off at Ampleforth College, then head towards the village of Gilling, with the finishing line near the start at Ampleforth College. A lovely scenic route which is a great alternative from city running.
Lots more information here.