DETROIT - The Pistons were trailing by two points with 9.7 seconds left when they called a second straight timeout — one more than they had — to trigger a technical foul that gave LaVine a free throw that he made.
DeMar DeRozan scored 21 points, including two at the line on the extra possession the Pistons gave the Bulls to help seal their 14th straight win in the series.
Chicago led Detroit by at least 15 points in each of the first three quarters, and by as much as 21 in a game that suddenly got close in the final minutes.
DETROIT, MICHIGAN - MARCH 01: Zach LaVine #8 of the Chicago Bulls drives around Bojan Bogdanovic #44 of the Detroit Pistons during the second half at Little Caesars Arena on March 01, 2023 in Detroit, Michigan. Chicago won the game 117-115. NOTE TO U
The Pistons pulled into a tie three times in the final 3:04, but couldn't stop LaVine from driving into the lane and drawing a foul with 48.9 seconds left that gave him two free throws that he made to restore a two-point lead.
Chicago's Coby White had 14 points, Nikola Vucevic scored 12 points and Patrick Williams added 11.
The Bulls (29-34) have won three of four, clinging to hopes of rallying into a spot in the playoffs.
Bojan Bogdanovic scored 34 for the Pistons, who have dropped six straight games for the third time this season.
Detroit (15-48) has the worst record in the Eastern Conference and is contention with Houston and San Antonio for the No. 1 pick in the NBA draft, expected to be
The Pistons were without three injured players — Jalen Duren, Isaiah Stewart and Isaiah Livers — and the Bulls took advantage for three-plus quarters.
LaVine made his first five shots and helped Chicago lead by 15 in the opening quarter. After Detroit rallied to pull within two points, White scored nine in the second quarter to help to turn a slim lead into a 69-54 cushion at halftime.
Bulls: The team's last loss in the series was March 10, 2019. ... LaVine entered the game averaging 20 points in 24 games against the Pistons, who allowed him to score a season-high 43 points in December.
Pistons: Rookie Jaden Ivey had 18 points, two assists and four turnovers, reserve Hamidou Diallo scored 19, Killian Hayes and Alec Burks each scored 11 points. ... Duren (ankle) missed his third straight game, Stewart (hip) was out for a second game in a row and Livers (ankle) sat out after leaving the previous game with an injury.
Bulls: Host Phoenix on Saturday night.
Pistons: Play at Cleveland on Saturday night.