BOSTON, April 23 (Ticker) -- Boston Celtics playoff novices Marcus Banks and Al Jefferson gave the Indiana Pacers a postseason experience to forget.

Banks and Jefferson scored eight points apiece in a huge second quarter as the Celtics stormed to a 102-82 rout of the Pacers in the opener of their Eastern Conference first-round series.

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The third-seeded Celtics overcame a slow start and blitzed the sixth-seeded Pacers, leading by as many as 37 points. In its illustrious history, Boston is 38-3 when winning Game One of a seven-game series.

The Celtics have five players on their roster with no postseason experience. By contrast, the Pacers have made the playoffs eight straight years and have a team filled with postseason mainstays, including Jermaine O'Neal (51 games), Dale Davis (108) and Reggie Miller (131).

Banks, a second-year guard, played reserve minutes in last year's first-round sweep at the hands of the Pacers. Jefferson, a rookie center right out of high school, was getting his first taste of the postseason.

But in the second quarter, the youngsters played like poised veterans and made Indiana look like the inexperienced team. The Pacers had 11 points with 10 turnovers and were whistled for a pair of technical fouls.

"We came out full of energy," said Jefferson, who scored all of his points in the second quarter. "Sometimes, it is not good to get out to a lead like we had because you tend to relax. We relaxed a little bit but we got back on track."

"Those young kids can play," Jackson said. "You can't take them lightly. They come out and played hard, played with a lot of intensity and they're in the NBA for a reason. You can't sleep on those kids. You can say what you want about experience, but it's about playing hard and those kids came out and played hard. The points showed it."

Meanwhile, the Celtics exploded for 39 points, taking a 57-31 halftime lead. They made 15-of-22 shots as Banks and Jefferson took turns carrying the offense.

Banks stripped Eddie Gill in the backcourt and put in a layup before knocking down 3-pointers on consecutive possessions for a 32-21 lead. Jefferson threw in a couple of hooks and a layup to push the advantage to 41-24 with 6:20 to go.

"Al down on the post, he was significant," Celtics coach Doc Rivers said. "He was very difficult for them to handle and it gave us another option."

"This is probably 80-to-90 games for him and after a while that rookie stuff, you just throw it out the window and play basketball," said Banks, who scored 11 points. "He's been playing for 17 or 18 years, there's no need to be nervous now."

After six turnovers in a four-minute stretch, Indiana unraveled. Coach Rick Carlisle and Miller were hit with technicals less than a minute apart and the deficit grew to 25 points.

"They showed the kind of team that they certainly can be," Carlisle said. "They are a legitimate team and they are able to play well in the playoffs because they have developed their young players."

In the first half, Banks and Jefferson combined for 16 points on 6-of-7 shooting while O'Neal and Miller combined for nine on 3-of-12, committing five turnovers.

"That was a demolition," Carlisle said. "I thought we played a good first quarter but then it went down really quickly in the second."

Raef LaFrentz also provided a lift with 21 points on 8-of-9 shooting, including 5-of-5 from the arc. That more than offset a poor game from All-Star Paul Pierce, who missed his first nine shots.

"I think both those guys (Banks and Jefferson) deserve credit for that second quarter run," LaFrentz said. "They came in with great energy, hit two, three or four big shots and then started to feed Al down low. Al Jefferson, in his own right down on the block, is a load to handle."

The Celtics held a 76-39 lead midway through the third quarter and led by at least 18 points thereafter. That gave plenty of playoff experience to rookies Delonte West and Justin Reed and second-year forward Kendrick Perkins as Rivers emptied his bench in the final period.

Gary Payton scored 14 points, Antoine Walker and Ricky Davis added 13 apiece and Pierce had 12 for Boston, which shot 51 percent (38-of-74) despite missing 12 of its first 13 shots.

Stephen Jacksonscored 25 points for the Pacers, who get another chance here in Game 2 on Monday.

"We were out of character tonight in the second quarter," O'Neal said. "We made some plays that normally we don't make. We tried to rush things and get the lead back and that just (led) to a bigger deficit. We will have a better showing come Monday, I can promise you that."