Fernando Valenzuela became the first 13-game winner in the National League by pitching the Los Angeles Dodgers to a 2-0 victory over the Atlanta Braves last night in Los Angeles.

It was his eighth shutout this season, a National League record for a rookie. The 20-year-old left-hander shares the major league record with Ewell Russell of the 1913 Chicago White Sox.

Valenzuela (13-4) aided his cause by singling in a run off loser Rick Mahler (5-6). Valenzuela allowed three hits and struck out six.

Aside from a first-inning walk, Valenzuela did not allow a runner until two were out in the fifth.

Red Sox 6, Tigers 1: Jim Rice had a three-run homer, a double and two singles in Boston to help Bob Ojeda win his sixth game since leaving the minors Aug. 9.

By sweeping the four-game series, the Red Sox moved into second place, a half-game behind the Tigers in the American League East.

Ojeda (6-2) struggled through seven innings, then Bill Campbell earned his sixth save.

The Red Sox took a 1-0 lead in the first by loading the bases off loser Milt Wilcox (10-8) on a walk to Jerry Remy and singles by Dwight Evans and Rice. Carney Lansford scored Remy with a fly ball to left.

Boston made it 2-0 in the second on doubles by Tony Perez and Rich Gedman and moved to a 3-0 lead in the fourth when Rick Miller singled, was sacrificed to second and scored on Rice's double to right center.

Rice homered in the eighth following two walks.

Phillies 3, Mets 2: Dickie Noles won his first game in 15 months and Larry Bowa drove in two runs with a second-inning double in New York.

Noles struck out six and walked none in seven innings. Jerry Reed walked two of three batters he faced in the eighth before Sparky Lyle came on and yielded a two-run single to pinch hitter Ellis Valentine. Ron Reed replaced Lyle with two out in the ninth and fanned Dave Kingman to earn his seventh save.

Cardinals 7, Expos 4: In Montreal, Darrell Porter drove in five runs with a double and grand slam as the Cardinals extended their lead over the Expos in the NL East to 3 1/2 games.

Joaquin Andujar (6-4) pitched an eight-hitter to beat Montreal for the ninth straight time.

Astros 9, Padres 0: In San Diego, Craig Reynolds capped a five-run first inning with a bases-loaded triple and Danny Heep had a pair two-run singles to support Joe Niekro's five-hitter.

The shutout was the 17th this season for the Astros.

Reds 1, Giants 0: In San Francisco, Dave Concepcion's single in the 10th inning won it for Tom Seaver (12-2).

Seaver and two relievers allowed only five hits.