Murphy graduated from the University of Pennsylvania. During his freshman year at Penn, Murphy was elected captain of the freshman football team. He also excelled as a member of the freshman basketball and track team. He lettered basketball in 1911 under head coach Charles Keinath, helping Penn to a 15–8 record including 5–3 mark in the Eastern Intercollegiate Basketball League.
Coaching career
Murphy served as coach, both as a head coach and assistant coach, at numerous schools including Union College, University of Pennsylvania, Peddie Institute, St. Charles College, and Johns Hopkins University. His coaching duties included multiple sports including football, basketball and track. At Union College he served as athletic director as well as coaching both the basketball and track teams.
Johns Hopkins
In 1916 Johns Hopkins Athletic Board picked Murphy as coach for the 1917 football team. At the time of selection he was serving as the athletic director of the Gilman Country School, and was student in the College of Physicians and Surgeons in Baltimore, Maryland. In addition to his football duties, he was responsible for rebuilding of the entire athletic department at Johns Hopkins. Murphy coached three years at Johns Hopkins where he finished with a 6–11–4 record. In his first year, the 1917 team finished with a 1–6–2 record, defeating only Western Maryland College. The next year the team finished.500 with a 1–1–1 record. In his last year his 1919 team once again finished with a.500 record at 4–4–1. Murphy was the first basketball coach at Johns Hopkins. He coached the 1919–20 squad to a 6–7 record including victories over Dartmouth and Lehigh and losses to Virginia Tech and Virginia.
Dickinson
In March 1923, Murphy was named the 17th head football coach at Dickinson College in Carlisle, Pennsylvania. Murphy was also named head of the Physical Training Department at Dickinson. He replaced future College Football Hall of Fame inductee Glenn Killinger as head football coach. Killinger had unexpectedly resigned. The official reason for the resignation was never given, but speculation was that the college administration did not like that he was also coaching a semi-pro team. Murphy did several things before the season to help with the transition. He brought in the new players from high school and prep school to fall camp early so they could learn the system. Several football alumni were brought in to assist him in getting the team in shape. He also provided a training table at a local hotel. Murphy only coached the first three games, all losses. Dickinson lost to a team from the United States Third Army, Navy, and Muhlenberg. In those three games Murphy's team gave up 42 points while only scoring 7. These games were also marked by lack of communication with his assistant coaches and player discontent. In the Navy game his players refused to use Murphy's plays, instead using former coach Killinger's offense. Due to these problems the Dickinson College athletic committee appointed Joseph Lightner as Field Coach which caused Murphy to resign. He was replaced by Lightner as head coach, who completed the season and went on to coach at Dickinson until the end of the 1925 season. Murphy's overall coaching record at Dickinson was 0–3 Since the NCAA only recognizes games played against four-year degree-granting colleges, his official record at Dickinson is 0–2 This ranks him last at Dickinson in terms of total wins and winning percentage.
Other contributions
Murphy's contributions included writing "Athletics in the Army" and his membership in early rules committees and as a football official in the early days of the sport.
Head coaching record
Football
* Does not include the loss to a team US Third Army since the NCAA only recognizes games played against four-year degree-granting colleges † incomplete