Jimmy McInnis grew up playing youth lacrosse in Amherst, NH. He played high school lacrosse at Bishop Guertin HS, where he graduated in 2008. He was named an All-American his senior year of high school. He went on to play 1 year of lacrosse at Sacred Heart University in Connecticut, and 3 years at Franklin Pierce University in New Hampshire, where he graduated in 2012. Jimmy played for the Tomahawks in 2007 and 2008 and has been coaching teams and clinics for the Tomahawks since 2009.