Johnston led the NBA in scoring for three consecutive seasons: 1952–53, 1953–54, and 1954–55. During the 1954–55 season, he also won the league's rebounding title. He led the league in minutes played in the 1952–53 season, 1953–54 season and in field goal percentage in the 1952–53 and 1955–56 season and 1956–57 season. He led the NBA in Win Shares for five consecutive seasons. Johnston played his entire career with the Philadelphia Warriors, playing on their championship team in 1956. He played in six NBA All-Star Games, was an All-NBA First Team selection four times, and was an All-NBA Second Team selection once. During his career, the 6-foot, 8-inch Johnston was well known for his sweeping right-handed hook shot. Johnston was forced to retire after a serious knee injury in the 1958–59 season. During his eight-year career, he averaged 19.4 points per game, 11.5 rebounds and 2.5 assists, with a field goal percentage of.444 and a free throw percentage of.768.
Later life
Johnston was head coach of the Philadelphia Warriors during the 1959–60 and 1960–61 seasons before resigning. He then coached the Pittsburgh Rens of the American Basketball League during the 1961 and 1962. In 1978, while serving as the athletic director at North Lake College in Irving, Texas, Johnston collapsed and died while playing basketball with his son.
NBA career statistics
Regular season
Playoffs
After basketball
After his playing career, Johnston coached the Warriors to a 95–59 record for the first two seasons of Wilt Chamberlain's NBA career. He also worked as an assistant coach at Wake Forest University under Jack McCloskey. In addition, Johnston coached the Pittsburgh Rens and Connie Hawkins of the American Basketball League. He also coached the Wilmington Blue Bombers of the Eastern Basketball League. In 1972, he was an assistant coach with the Portland Trail Blazers. His last job was as athletic director at North Lake College in Irving, Texas. On September 28, 1978, Johnston died of a heart attack at age 49 while playing basketball in Bedford, Texas. In 1980, Johnston was inducted posthumously into the Pennsylvania Sports Hall of Fame. In 1990, he was enshrined posthumously into the Naismith Memorial Basketball Hall of Fame and the Ohio Basketball Hall of Fame. In 2005, he was inducted into the Philadelphia Sports Hall of Fame. In 2016, a Chillicothe resident, Bruce Caplinger, began raising money to erect a statue of Johnston outside of Chillicothe High School.