Detroit -2.5pts won the game, which was not unexpected. The teams entered the game evenly matched; Detroit -2.5pts had a 55% chance to win before the game started
Philadelphia +2.5pts made it a game early, taking their largest lead at the beginning of the game, when they had a 58% chance of winning. But Detroit -2.5pts responded, regaining the lead and maintaining control for the duration of the game.