KRACH stands for "Ken's Ratings for American College Hockey". It is the implementation of a sophisticated mathematical model known as the Bradley-Terry rating system, first applied to college hockey by a statistician named Ken Butler.
College Hockey News endorses KRACH as a way of determining the relative strength of one team to another.
So just looking at strength of schedule, these 10 teams have played the hardest schedules so far:
1. Minnesota, 328.2
2. St, Cloud State, 302.5
3. Michigan Tech, 291.1
4. Northern Michigan, 279.9
5, Ohio State, 262.4