The Detroit Pistons defeated the Los Angeles Lakers four games to none in the best-of-seven NBA Finals series to conclude the 1988-89 NBA season. It was the first of two consecutive championships for the Pistons, and the first Finals victory for the Pistons after three previous series losses (1988, 1956, 1955).

The Lakers were making their third consecutive Finals appearance, having won the title in both 1987 and 1988, the latter coming against the Pistons. As of 2008, the Pistons are the last NBA team to win the NBA title the season after losing in the Finals.

Joe Dumars won the NBA Finals MVP Award, earning the award before ever making an All-Star team (though he would go on to make six All-Star Game appearances).

The Pistons had home-court advantage for the Finals. The Pistons swept the two regular-season meetings between the teams.

Team	Lakers	Pistons
Regular Season	57-25, 1st in Pacific Division	63-19, 1st in Central Division
First Round	Def. (8) Portland Trail Blazers, 3-0	Def. (8) Boston Celtics, 3-0
Conference Semifinals	Def. (4) Seattle SuperSonics, 4-0	Def. (5) Milwaukee Bucks, 4-0
Conference Finals	Def. (3) Phoenix Suns, 4-0	Def. (6) Chicago Bulls, 4-2

The Lakers played without Byron Scott, who pulled a hamstring in practice before Game 1, and were unable to slow down the Pistons' backcourt. Isiah Thomas scored 16 points in the first half to take the Pistons to an 11-point lead. Already shorthanded without Scott, the Lakers had to go deep into their bench when Michael Cooper, A.C. Green, Kareem Abdul-Jabbar and Orlando Woolridge all got into foul trouble. Detroit opened the second half on an 11-3 run and never looked back, cruising to a 12-point victory.

The Pistons were led by Thomas, who finished with 24 points and nine assists. His backcourt mate, Joe Dumars, added 22 points, and guard Vinnie Johnson scored 19 in 21 minutes off the bench. Magic Johnson and James Worthy each scored 17 points for the Lakers, who lost for the first time in the 1989 Playoffs.

Already short-handed without Byron Scott, the Lakers were dealt a crushing blow when star point guard Magic Johnson had to leave this game in the third quarter with a hamstring injury. Before Johnson's departure, the Lakers had led by as many as 10 points. The game was tied at 75 when Johnson left, and the Lakers briefly responded by going on a 15-6 run. L.A. couldn't keep up the pace, though, and the Pistons took a seven-point lead with under four minutes left. The Lakers closed the gap to two, and James Worthy had a chance to tie the game at the free-throw line, but missed one of his two attempts. Isiah Thomas then iced the game with two free throws of his own, giving the Pistons a three-point win.

Joe Dumars led all scorers with 33 points, while Thomas finished with 21 for Detroit. The Lakers have six players in double figures, but no one reached the 20-point mark for L.A. James Worthy and Michael Cooper led the team with 19 points each. Johnson finished with 18 points, six rebounds and nine assists before being forced to the bench with his injury.

Magic Johnson attempted to play on his injured hamstring but missed the only two shots he attempted and sat down for good five minutes into the game. Even without Johnson and Byron Scott, the Lakers were able to keep the game close, leading by as many as eight points in the third quarter. Detroit relied on the hot hand of Joe Dumars, who scored 17 straight points for them in the third quarter, and entered the fourth quarter down just two points. In the fourth quarter, the Pistons' offense was led by Vinnie Johnson, who scored 13 points in the final 12 minutes. Johnson's jumper with 2:06 left gave the Pistons a five-point cushion. The Lakers would pull within 3 at one point but never got any closer, as Dumars blocked David Rivers' potential game-tying 3-pointer.

Dumars finished with 31 points, 21 of which came in the third quarter, to lead the Pistons. Isiah Thomas added 26 points, while Dennis Rodman was a key contributor off the bench, finishing with 12 points and 19 rebounds. James Worthy led the Lakers with 26 points, while Kareem Abdul-Jabbar finished with 24 points and 13 rebounds.

Despite being significantly shorthanded, the Lakers jumped out to a 12-point lead after the first quarter behind the strong play of James Worthy, who scored 17 points in the opening 12 minutes. The Pistons also did their part to keep the Lakers ahead by missing 11 free throws in the first half. Detroit slowly chipped away at the Lakers' lead, cutting the margin to two points heading into the final quarter. The Pistons outscored the Lakers by 10 points in the final quarter, taking control of the game early in the quarter and never looking back en route to the sweep.

Joe Dumars scored 23 points, going 13-of-17 from the free-throw line, to lead the Pistons and earn series MVP honors. Detroit had six players in double figures, including reserve center James Edwards, who scored 13 points and was key in the fourth-quarter comeback.

Worthy finished with 40 points for the Lakers, going 17-of-26 from the field. However, he was the only L.A. player to score more than 13 points.

In his final NBA game, Kareem Abdul-Jabbar scored seven points. He was taken out of the game three times in the final 3:23 of the game, each time to a louder ovation from the hometown crowd. Abdul-Jabbar made his final basket with 1:37 left in the game, which at the time cut the Pistons' lead to four points. It was the Lakers' last field goal of the game.

The Pistons became the first team to sweep the Finals since the expansion of the playoffs to 16 teams in 1984. They were also the first team to sweep under the 2-3-2 format, which was adopted in 1985.