 Holmgren spent the next eight seasons in Philadelphia and was annually among the team's leaders in penalty minutes and was also able to contribute offense.He posted career highs in goals (30) and points (65) in 1979–80 and added 10 goals and 10 assists during the Flyers playoff run.His three goals in Game 2 of the Stanley Cup Finals was the first time a U.S.-born player scored a hat trick in a Cup Finals game.