Banfield attended Greenhills School in Ann Arbor, Michigan, where he was a member of the baseball and golf[1] teams.
He was a pitcher and third baseman, who was named second-team All-State Division IV in Michigan.
[4] The team made multiple appearances at the Connie Mack World Series,[5] won 22 total tournaments in five seasons and produced 20 NCAA Division I recruits, including MLB player James Bourque.
[6] Banfield then went on to coach at Illinois Springfield, Texas Rio Grande Valley, and Akron.
[7] On May 29, 2020, Banfield was named the head baseball coach of the Oakland Golden Grizzlies.