1970 National League Championship Series
|Dates:||October 3–October 5|
|TV announcers:||Curt Gowdy, Tony Kubek (Games 1–2)
Jim Simpson, Sandy Koufax (Game 3)
|Umpires:||John Grimsley, Fred Blandford, Hank Morgenweck, George Grygiel (Game 1); Stan Landes, Paul Pryor, Doug Harvey, Bob Engel, Harry Wendelstedt, Nick Colosi (Games 2–3)|
|1970 World Series|
The 1970 National League Championship Series was a match-up between the East Division champion Pittsburgh Pirates and the West Division champion Cincinnati Reds. The Reds swept the Pirates three games to none and went on to lose the World Series to the Baltimore Orioles.
This was the first of ten NLCS series between 1970 and 1980 that featured either the Philadelphia Phillies or the Pittsburgh Pirates. The only time neither team appeared in the NLCS during that period was in 1973.
(Note: Due to a one-day strike by major league umpires, the series was begun using four minor league umpires, with the regularly assigned crew—including union president Wendelstedt—returning for Games 2 and 3.)
 Cincinnati Reds vs. Pittsburgh Pirates
Cincinnati won the series, 3–0.
|1||October 3||Cincinnati Reds – 3, Pittsburgh Pirates – 0 (10 innings)||Three Rivers Stadium||2:23||33,088|
|2||October 4||Cincinnati Reds – 3, Pittsburgh Pirates – 1||Three Rivers Stadium||2:10||39,317|
|3||October 5||Pittsburgh Pirates – 2, Cincinnati Reds – 3||Riverfront Stadium||2:38||40,538|
 Game summaries
 Game 1
|WP: Gary Nolan (1–0) LP: Dock Ellis (0–1) Sv: Clay Carroll (1)|
Cincinnati boasted dual heroes in subduing the Pirates in the opening game. Gary Nolan, an 18-game winner during the regular season, pitched nine shutout innings to edge Dock Ellis. Nolan departed for pinch-hitter Ty Cline in the 10th, which turned out to be a stroke of genius by Reds manager Sparky Anderson. Cline socked a triple to lead off the inning. He scored the decisive run on Pete Rose's single, and Lee May doubled to provide two insurance tallies, sealing Ellis' fate. Reliever Clay Carroll protected Nolan's victory by holding Pittsburgh hitless in the 10th.
Another key contributor was second baseman Tommy Helms. With Pirate runners on second and third inning, Dave Cash rifled a shot to Helms' right. Helms' diving stop and quick throw to first prevented two runs.
 Game 2
|WP: Jim Merritt (1–0) LP: Luke Walker (0–1)
CIN: Bobby Tolan (1)
The Reds continued to pound the Pirates in Game 2. Boby Tolan was a complete mystery to Buc starter Luke Walker. Bobby began his three-hit salvo with a single in the third inning. He stole second base and wound up at third on catcher Manny Sanguillén's wild peg into center field. Walker's wild pitch permitted Tolan to score. Bobby delivered his kayo punch in the fifth, belting a home run over the wall in right-center, and capped his big day with a single off relieve Dave Giusti in the eighth.
Lefty Jim Merritt, Cincinnati's lone 20-game winner, was the second-game starter. Arm trouble had kept Merritt on the shelf in the closing weeks of the regular season, but Manager Anderson had precedent going for him in this case. Merritt had beaten the Pirates six times in six starts over the two-year period. He made it seven for seven by lasting 5 1⁄3 innings this time. Carroll relieved Merritt in the sixth, but gave up two hits and had retired only one batter when Anderson signaled for Gullett.
That did it. Gullett shut off the Pirate threat immediately, striking out the side in the seventh and finishing with 3 1⁄3 hitless rounds.
 Game 3
|WP: Milt Wilcox (1–0) LP: Bob Moose (0–1) Sv: Don Gullett (1)
CIN: Tony Pérez (1), Johnny Bench (1)
The Pirates started the Game 3 scoring by a run in the first inning off Tony Cloninger, who averted disaster three times before Anderson finally yanked him for a pinch-hitter in the fifth with the score 2–2. The slugging Reds uncorked their only power show of the playoffs in the first inning, Tony Pérez and Johnny Bench smacking successive homers off Bob Moose. Pirate starter Moose showed more courage than stuff in the early going. But he hung on and proceeded to halt the Reds until he had two outs in the eighth. Then he walked pinch-hitter Ty Cline and gave up a single to Pete Rose.
With Tolan comin up, Pirate manager Danny Murtaugh brought in lefty Joe Gibbon. Tolan whacked a single to left. Cline took off from second and sped for the plate. he arrived just a hair ahead of Willie Stargell's peg, and the Reds had a 3–2 lead.The Reds had a pitching star in this one, too, young Milt Wilcox, who worked three shutout innings in relief of Cloninger and earned the victory. Wilcox vanished for pinch-hitter Cline in the eighth. Wayne Granger tried to protect the Reds' 3–2 lead in the ninth, but was removed with two down and a runner on first. Gullett was Anderson's choice to wrap it up. The teenager wasn't invincible this time, yielding a single to Stargell. But with runners on first and third, Al Oliver swung at Gullett's first pitch and grounded to Helms and the NL pennant belongs to the Reds.
 Composite box
|Total attendance: 112,943 Average attendance: 37,648|
- Von Benko, George (July 7, 2005). "Notes: Phils–Pirates rivalry fading". Phillies.MLB.com. Major League Baseball. Retrieved January 3, 2011. "From 1974-80, the Phillies and Pirates won all seven National League East titles (Phillies four, Pirates three)."
- "Pirates perform rare three-peat feat 4–2". USA Today. September 28, 1992. p. 5C. "The Pirates...won three (NL East titles) in a row from 1970-72."
- "1970 NLCS Game 1 - Cincinnati Reds vs. Pittsburgh Pirates". Retrosheet. Retrieved 2009-09-13.
- "1970 NLCS Game 2 - Cincinnati Reds vs. Pittsburgh Pirates". Retrosheet. Retrieved 2009-09-13.
- "1970 NLCS Game 3 - Pittsburgh Pirates vs. Cincinnati Reds". Retrosheet. Retrieved 2009-09-13.
- Baseball-Reference.com - 1970 NLCS