High Quality Content by WIKIPEDIA articles! The 1979–80 Phoenix Suns season was the 12th season for the Phoenix Suns of the National Basketball Association and at 55–27, the team`s best regular season record since the franchise`s inception. The Suns defeated Western Conference foe Kansas City in the opening round of the playoffs, marking the first time the Suns had won a playoff series in back-to-back seasons. In the Western Conference Semifinals, the Suns would lose to the Pacific-winning Los Angeles Lakers, who later went on to win the season`s championship. The Suns were led by head coach John MacLeod, his seventh season with the team, and played all home games in Arizona Veterans Memorial Coliseum.