CINCINNATI — Cole Hamels completed what Roy Halladay started, putting the Philadelphia Phillies back in the NL championship series.

Another ace, another dominating performance.

Hamels struck out nine in a five-hitter, Chase Utley homered and the Phillies beat the Reds 2-0 on Sunday night to finish off the franchise’s first playoff sweep.

Philadelphia, trying to become the first NL team in 66 years to win three straight pennants, will host San Francisco or Atlanta in the NLCS opener on Saturday. The Giants beat the Braves 3-2 Sunday to take a 2-1 lead in their best-of-five division series.

Halladay opened this matchup with the second no-hitter in postseason history. With Hamels and Roy Oswalt also rested and ready to go for the next round, look out.

“Having three starters definitely helps,” Hamels said. “The playoffs are all about pitching.”

The Reds, making their first postseason appearance in 15 years, committed six errors in the last two games of the series after finishing second in the NL with a club-record .988 fielding percentage during the regular season.

The NL’s top offense also stalled in three playoff games, managing just 11 hits.

Hamels got Joey Votto to ground into a double play after Brandon Phillips’ leadoff single in the ninth, then struck out Scott Rolen to end the game. The lanky left-hander threw 119 pitches in his first postseason complete game, 82 for strikes.

After Rolen struck out for the eighth time in the series, Hamels pumped his fist and the Phillies celebrated with a few chest bumps and a handshake line before returning to the locker room for more champagne.

Of course, it all looked very routine — Charlie Manuel’s team has practiced this a lot over the past couple of years.

Utley, greeted with loud boos and chants of “Cheater! Cheater!” before each at-bat, connected against Johnny Cueto in the fifth, giving the Phillies a 2-0 lead. It was his 10th career postseason homer, moving him past teammate Jayson Werth and into first on the club’s career list.

Utley started Philadelphia’s winning rally in Game 2 when he was hit by a pitch from hard-throwing reliever Aroldis Chapman in the seventh inning. The All-Star second baseman acknowledged after the game he wasn’t sure if the ball hit him, and a record crowd of 44,599 at Great American Ball Park made it clear what it thought of the play.

In other games on Sunday:

Giants 3

Braves 2

ATLANTA — Substitute second baseman Brooks Conrad made his third error of the game in the ninth inning, allowing San Francisco to rally for a victory over Atlanta and a 2-1 lead in their NL division series. The Braves were within one out of taking control of the best-of-five series, but a 30-year-old journeyman infielder who wouldn’t have been playing if not for season-ending injuries to Chipper Jones and Martin Prado simply couldn’t catch the ball. Buster Posey’s grounder went right under Conrad’s glove, his worst miscue yet in a performance that might speed up the retirement of Braves manager Bobby Cox. Freddy Sanchez raced around with the go-ahead run, and Brian Wilson shut down Atlanta in the ninth for the save.

Rays 5

Rangers 2

ARLINGTON, Texas — Evan Longoria snapped out of his postseason slump with a homer and two doubles, Carlos Pena scored twice after a pair of extra-base hits of his own and Tampa Bay escaped elimination again with a victory over Texas. After losing the first two games of the AL division series at home, the Rays won twice in Texas to force a deciding Game 5 at Tropicana Field on Tuesday night. Postseason ace Cliff Lee will start for the Rangers against 19-game winner David Price in a Game 1 rematch.