Dale McCourt played major junior in the Ontario Hockey Association (today's OHL). As a 15-year-old, he was already playing Tier II junior hockey when called up by the Sudbury Wolves for part of the 1972–73 OHA season. He joined the Hamilton Red Wings for the full 1973–74 OHA season, and was team captain by the time the renamed Hamilton Fincups won the 1975–76 OMJHL Championship and then the national 1976 Memorial Cup championship.


In 1976–77, McCourt led the relocated St. Catharines Fincups as the team won the OMJHL Regular Season Championship. That season, he was awarded the Red Tilson Trophy as the league's Most Outstanding Player and was voted the nationwide CHL Player of the Year. Dale was also awarded the William Hanley Trophy as the OMJHL's Most Sportsmanlike Player in both 1975–76 and 1976–77.


In the 1977 World Junior Ice Hockey Championships, McCourt scored 18 points, a Canadian record he shares with Brayden Schenn and one point more than Eric Lindros and Wayne Gretzky.


McCourt was drafted 1st overall by the Detroit Red Wings in the 1977 NHL amateur draft. He successfully scored 33 goals in the first year with the team and was entitled to NHL rookie of the year with the Red Wings.

McCourt was traded to the Buffalo Sabres in December 1981 and claimed on waivers by the Toronto Maple Leafs in October 1983, finishing his NHL career at the end of the 1983–84 NHL season, with 478 points in 532 games played.


McCourt then played for 8 seasons for HC Ambrì-Piotta, in the top Swiss league where his number 15 jersey is retired.


His coaching career highlight includes representing Italy as an assistant coach with the Italian National Ice Hockey Team at the 1994 Winter Olympic Games.