Crater led SWA to three city championships and two Michigan Class B final four appearances as a sophomore and junior. The Knights finished with identical 24-3 records in 2006 and 2007, falling to Detroit Renaissance in 2006 and East Grand Rapids in 2007. Both losses were in the Michigan Class B Semifinals.

After three years at SWA, Crater transferred to Brewster (N.H.) Academy to complete his high school eligibility at the prep school. While at Brewster, the team captured its first New England Class A title and advanced to the national final four with a school-record 31 victories (31-4). Brewster also claimed the New Hampton School Invitational, the championship at the Maine Central Institute Invitational and the Brewster Invitational. Crater was a 2008 McDonald’s All-American nominee after averaging 16 points and 8.0 assists at Brewster his senior year.

Crater is the son of Lisa Jimerson and Anthony Crater Sr. He has one brother, Treyvon and a sister, Kyla. In high school, Crater also earned varsity letters in track and soccer. After graduation, he plans to own a business or continue playing basketball.