The Indiana Pacers are one game away from knocking out the No 1 seed Cleveland Cavaliers after a record-breaking win in Game 3 of the Eastern Conference semifinals on Sunday night. 

Pascal Siakam scored 21 points and the Pacers tied an NBA playoff record by taking a 41-point halftime lead, before seeing out the game 129-109 for a 3-1 series lead.

The Pacers can earn a second straight trip to the East finals with a victory Tuesday in Cleveland, where they won the first two games.

Among the big names watching the action was another Indiana sporting superstar in Caitlin Clark, taking some time out from the WNBA’s Fever to watch her male counterparts in action.

She cheered as Indiana jumped to an 80-39 lead at halftime and led by 44 points. The 41-point lead matched the margin Cleveland set in Game 2 of the 2017 Eastern Conference finals against Boston, according to Sportradar.

And Indiana did it mostly without Bennedict Mathurin, one of its top playoff scorers, who was ejected just seven-and-a-half minutes into the game for a flagrant foul.

Tyrese Haliburton and the Pacers are a game away from knocking Cleveland out of the playoffs 

Caitlin Clark and Aliyah Boston in the build to watch the Pacers blow out the Cavs pic.twitter.com/RDYuBybBEm

— Clark Report (@CClarkReport) May 12, 2025

Darius Garland led the Cavs with 21 points and Donovan Mitchell had 17 points despite not playing in the second half because of a left ankle injury. Coach Kenny Atkinson said his All-Star guard would have an MRI exam Monday.

For the Pacers, it was a redeeming moment in front of a towel-waving home crowd just two days after an embarrᴀssing 22-point loss on its home court. The Cavs dominated the glᴀss, held two-time All-Star Tyrese Haliburton to four points and five ᴀssists and fought harder than Indiana.

This time, the Pacers left no doubt about who would be the aggressor.

Pascal Siakam had 21 points in a remarkable win for Indiana over their Eastern conference rival

Indiana took control quickly with early runs of 11-2 and 13-0 to build a commanding 48-23 lead with 9:24 left in the first half. They didn’t stop – or back down – there, either, closing the half on a 19-2 run.

Aaron Nesmith’s buzzer-beating midrange jumper put the Pacers in another exclusive club – the 10th team in playoff history and second this week to score 80 points in the first half of a playoff game. 

Oklahoma City scored 87 points in Game 2 against Denver.

Myles Turner made all four of his 3-point attempts and scored 20 points, as did Obi Toppin.