Home of the Twins, Vikings and Golden Gophers the Metrodome is both a warm-up area as well as the official starting line for the TCM. You'll arrive early to stretch and relax in the warmth of the indoor arena. PA announcements will call you to the start line.
The starting area is crowded but not impossible like larger marathons. It's fairly easy to move up or back in the corral if you wish. You'll get a weather update as well as a fond farewell from the race director.
You hear the gun and you're gone.