Grandma's Marathon up in Minnesota will give you a comped entry for anything under 2:30. For 2:27 or under the race director, Shane Bauer, will put you up at his house. For 2:25, the night before the race, Shane Bauer will send his daughter-in-law up to your room for a quick tug to relax you before the race. And for 2:20 or below, Shane Bauer, will let you throw a f*** on his grandma, hence the term "Grandma's Marathon".