Big lake and other half/full marathons in and around the lakes region area are listed in runners world.
http://www.runnersworld.com/
It takes a lot of effort from the locals to the municipals to put on a race. Lakes Region is a great host! I thank you for that.
Many times the runners face irate motorists on a hurry to nowhere. Telling the runners to quit blocking the roads, go elsewhere, pick a better time etc. etc. This is totally uncalled for and the races never block roads or impede traffic! Slow down and enjoy the slow pace the region has to offer!