Rookie Mark McGwire hit two home runs yesterday -- tying a major league record with five in two games -- and Steve Ontiveros pitched a two-hitter as the Oakland Athletics gave the Indians their seventh straight defeat, 10-0, in Cleveland.

Unaware of the record, McGwire said, "I'm not a trivia buff; I never knew anything like that."

He scored four runs, tying another major league record with nine in two games.

The A's hit five homers, and 23 more were struck throughout the AL yesterday, establishing a league record for most home runs in a seven-game day; 27 were hit in seven games on May 28, 1961.

McGwire, who hit three home runs Saturday, produced one-run shots in the fourth and seventh innings yesterday off Tom Candiotti (2-9). He is eight for nine with seven RBI in his last two games and is tied for the major league lead with 27 homers.

The AL record for home runs by a rookie is 37, set by Al Rosen of the Indians in 1950.

McGwire also doubled in the second and had an infield single in the eighth. In the ninth, he flied out to the right field warning track.

Jose Canseco hit two home runs for Oakland, his 13th and 14th, and Reggie Jackson produced his 10th of the season and 558th of his career.

Ontiveros (5-1) struck out six and walked none for his fifth straight victory. The right-hander didn't allow a ball past the infield until Pat Tabler's bloop double in the fourth.

Angels 13, White Sox 3:

In Chicago, Wally Joyner hit two home runs to lead a six-homer output that lifted California to its seventh straight victory.

Brian Downing, George Hendrick, Ruppert Jones and Devon White also homered as the Angels tied a club record. Hendrick and Jones had pinch-hit home runs to equal the major league record of two in one game by one team.

Willie Fraser (5-5) pitched his fourth complete game of the season. He allowed five hits, two walks and struck out two in beating Bill Long (4-4). The White Sox have lost four straight and 22 of 27.

Red Sox 6, Yankees 2:

Al Nipper pitched a five-hitter and Jim Rice drove in two runs as Boston won in New York.

Nipper (7-6) pitched his third complete game in his last four starts, allowing one earned run, striking out eight and walking two. Rice, who has 27 RBI in his last 32 games, knocked in runs with a fourth-inning single and a sixth-inning double.

In the sixth, Boston's Don Baylor was hit by a pitch, Rick Rhoden's, for the 244th time in his career, breaking Ron Hunt's major league record.

"There is now way I'm going to back off {the plate}," said Baylor, who's been hit 17 times this season. "The key is to avoid a direct hit on the elbow or the wrist. I have never missed a game or broken a bone from being hit by a pitch."

The Red Sox, trailing by 2-0, took a 3-2 lead in the fourth off Rhoden (9-5) on Bill Buckner's RBI single.

Brewers 11, Blue Jays 5:

Robin Yount and Cecil Cooper each homered and drove in three runs as Milwaukee, at home, defeated Toronto.

Teddy Higuera (6-7) had won only once in his 12 previous starts. He gave up nine hits in seven innings, including George Bell's 27th homer in the first, and matched his season high of 13 strikeouts.

Dan Plesac finished up with four strikeouts, giving Milwaukee pitchers 17 for the game.

Royals 8, Mariners 3:

Bo Jackson and George Brett hit home runs and Mark Gubicza pitched a five-hitter as Kansas City beat visiting Seattle.

Gubicza (6-8) won his third in a row, but his string of 19 scoreless innings ended when the Mariners scored twice in the fourth.

Jackson's 440-foot home run, his 15th, was a two-run shot off reliever Roy Thomas that landed in the upper tier of the fountain in right-center and topped off a six-run fifth inning in which the Royals took a 7-2 lead.

"I've never seen anyone hit one there, either right-handed or left-handed," said Hal McRae, Kansas City's batting coach.

After the game, Kansas City's Bret Saberhagen, at 13-2 the most victorious pitcher in the majors this season, scuffled briefly with Royals third base coach Jose Martinez in the locker room; neither was hurt.

Rangers 6, Twins 3:

Oddibe McDowell's two-run homer in a four-run fourth inning sparked the Rangers over Minnesota for a sweep of the four-game series in Arlington, Tex.

Jose Guzman (6-6) pitched 7 1/3 innings, allowing three runs and seven hits, walking one and striking out four. Mitch Williams relieved in the eighth and Dale Mohorcic worked two-thirds of an inning for his 11th save.

Mike Smithson (4-4) lost his fourth straight game to the Rangers, his former team.