Tatum, the five-time All-Star, scored 18 points in the third quarter as Boston used a 19-8 run to open a 93-77 lead heading into the fourth.
Tatum scores a season-high 43 to power Celtics past Bulls
At a glance
CHICAGO (AP) — Jayson Tatum scored a season-high 43 points, grabbed 16 rebounds and dished out 10 assists for his third career triple-double and the Boston Celtics beat the Chicago Bulls 123-98 on Saturday night, Dec. 21.
Kristaps Porzingis scored 22 points and Jaylen Brown added 19 to help the Celtics rebound from a 117-108 loss to the Bulls in Boston on Thursday night.
Tatum, the five-time All-Star, scored 18 points in the third quarter as Boston used a 19-8 run to open a 93-77 lead heading into the fourth.
Nikola Vucevic scored 19 points and 10 assists to lead the Bulls, whose season-high three-game winning streak ended. Zach LaVine, Coby White and Patrick Williams had 14 points each.
Referee Aaron Smith left the game in the second half with a hip injury.
In Orlando, Cole Anthony scored 27 of his 35 points in the second half and the Magic tied their largest comeback in franchise history to beat the Miami Heat 121-114 after trailing by 25 points.
The Magic also trailed by 22 entering the fourth quarter before outscoring the Heat 37-8. Their 25-point comeback ties a mark set on Nov. 8, 1989 against the Cleveland Cavaliers.
Anthony also had eight rebounds and nine assists. Kentavious Caldwell-Pope scored 24 points and Goga Bitadze added 18 points and 13 rebounds for the Magic, who lost center Mo Wagner to a knee injury in the first quarter and center Wendell Carter Jr. to an ejection before halftime.
Bam Adebayo and Terry Rozier led Miami with 23 points each, and Tyler Herro added 22.
Wagner went down with a left knee injury and did not return. Guard Jalen Suggs was a late scratch after injuring his ankle Thursday night.
Desmond Bane scored 23 points and the Memphis Grizzlies, without star player Ja Morant, beat the skidding Atlanta Hawks 128-112.
Scotty Pippen Jr. added 22 points and nine assists. Morant, who injured his back in the Grizzlies' Dec. 19 win over Golden State, was ruled out with low back soreness before Saturday night's game.
De'Andre Hunter led Atlanta with 26 points and Jalen Johnson added 13 points and 11 rebounds.
Elsewhere, Bobby Portis replaced Giannis Antetokounmpo in the starting lineup and scored a season-high 34 points, leading the Milwaukee Bucks to a 112-101 victory over the Washington Wizards.
Khris Middleton had 18 points, six rebounds and eight assists for the Bucks, while Portis finished with 10 rebounds and eight assists.
Antetokounmpo (back spasms) missed his third game of the season and the Bucks also played again without Damian Lillard (right calf strain) after winning the NBA Cup earlier this week.
Milwaukee coach Doc Rivers said Lillard could play Monday against Chicago.
Rookie Ryan Rollins started at point guard in Lillard’s absence and contributed 14 points in 31 minutes. Center Brook Lopez also had 14 and Gary Trent Jr. had 15 points and seven rebounds.
Middleton played for the second straight night after scoring 14 points in 19 minutes at Cleveland on Friday. He continues to get into shape after missing the first 21 games following offseason surgery on both ankles.