The 1975 Indiana "Mr. Basketball" Award winner from Peru High School, where he played for his father, Bob; chose to attend Purdue University, coached by head coach, Fred Schaus. Macy averaged 13.8 points a game as a freshman, while leading the Boilermakers in free throws, shooting.859 percent from the line on the season. He started in 25 of 27 games, helping them to a 16–11 season record.
Kentucky
After playing his freshman year at Purdue, Macy transferred to the University of Kentucky in 1976. After sitting out the 1976–77 season as mandated by NCAA rules, he started playing at Kentucky in 1977. Macy had a very successful college career, as a three-time All-America and three-time All-SEC player. The 1978 team on which Macy was a starter won the 1978 NCAA National Championship. In his senior year of 1979–80, he became the first Kentucky player ever to be named consensus Southeastern ConferencePlayer of the Year.
Professional career
Macy was selected with the 22nd pick of the 1979 NBA Draft by the Phoenix Suns, even though he had a year of college eligibility remaining. Macy played out his last year of college, and started playing for the Suns in 1980. Macy spent five years with the Suns, averaging 10.6 points and 4.0 assists per game. Macy spent one year each with the Chicago Bulls and the Indiana Pacers before retiring from the NBA. Then he played professionally in Italy for Dietor Bologna and Benetton Treviso. Macy was also one of the original participants of the NBA All-StarThree Point Contest when it debuted in 1986. Macy was an excellent free throw shooter throughout his career. During the 1981-82 NBA season he led the NBA in free throw percentage. He still holds the career free throw shooting percentage record at the University of Kentucky, and his.884 career percentage is second only to Steve Nash on the Phoenix Suns' career leaders list.
Later career
Macy was head coach of the Morehead State University Eagles of the Ohio Valley Conference for nine years. In 2003, Macy coached the Eagles to 20 wins, its most in 19 years, and a share of the OVC regular season championship. However, the 2004–05 season was less successful, as Morehead failed to qualify for the OVC tournament. Following that season, Macy coached a group of Sports Reach collegiate all-stars that toured China and finished with a perfect 7–0 record against several Chinese professional teams. After a disastrous 4–23 season in 2005–06, Macy resigned as head coach on February 28, 2006. Macy emphasized free throw shooting in his coaching, and the emphasis paid off, as his Morehead State teams were perennially among the Division I leaders in free throw shooting percentage.