William Squires is an American Track & Field Coach. He is well known for coaching the Greater Boston Track club at the height of its marathon success, including marathoner Bill Rodgers, Alberto Salazar, Dick Beardsley and Greg Meyer. He was notable for designing a Heartbreak Hill simulator for training. He was formerly a coach at Boston State College.
In 2002 he received the Bill Bowerman award from the National Distance Running Hall of Fame. He co-authored the book "Speed with Endurance" with Bruce Lehane.
He is originally from Arlington, Massachusetts and competed in Track & Field events for Arlington high school and then in college for Notre Dame. Squires personal bests according to the MSTCA hall-of-fame induction were 4:21 for the mile in high school and 4:07 in college.
Speed with Endurance website Bio