Leonard J. Farello, 66, who taught physical education and coached baseball, basketball, football and soccer at Calvin Coolidge Senior High School in the District, died March 25 at Holy Cross Hospital in Silver Spring. He had cancer.

Mr. Farello, who taught health, physical education and first aid, began his coaching career at Coolidge in 1969 as head coach of the baseball team. In the 1970s, he became assistant coach of the soccer team, and he served as an assistant coach of the football and basketball teams in the 1980s.

When Coolidge’s head basketball coach, Frank Williams, died in 1987, Mr. Farello took over. He then focused exclusively on basketball until his retirement in 2000.

Mr. Farello’s teams won a combined 11 championships in the West Division of the D.C. Interscholastic Athletic Association. He served as what is now called the D.C. Interscholastic Athletic Association’s West Division All-Star baseball coach 10 times. He also served as baseball chair of the D.C. Coaches Association and was inducted into the association’s hall of fame, one of many recognitions and awards for his contributions to community athletics.

In October, Mr. Farello will posthumously receive an award from the Coolidge Alumni Association for his service to the school.

Leonard Joseph Farello was a native of Brooklyn, N.Y. Shortly after graduating from high school in 1962, he signed a contract to play baseball for the Miami Marlins, a Philadelphia Phillies farm team.

After three years with the Marlins, Mr. Farello enrolled at the University of Southern Mississippi. He received a bachelor’s degree in 1968 and a master’s degree in education from American University in 1972.

Survivors include his wife of 44 years, Toni Stephens Farello of Silver Spring; four children, Leonard Farello of Rio Rancho, N.M., Theresa Farello of Silver Spring and Tony Farello and Gabrielle Farello, both of Kensington; and seven grandchildren.

— Megan Buerger