 Walters was a member of consecutive Steinfeld Cup winning teams with the 2008 Rochester Rattlers and the 2009 Toronto Nationals.He was named Most Valuable Player of the 2008 MLL Championship Weekend.With the suspension of operations of the Hamilton Nationals after the 2013 season and the birth of the expansion Florida Launch for the 2014 season, most of the Nationals players, including Walters, were transferred to the Launch.