BOSTON - John Smoltz earned his 199th victory, and the Atlanta Braves set a team record with 12 extra-base hits as they handed the Boston Red Sox their worst shutout loss in 17 years, 14-0, last night to split a day-night doubleheader at Fenway Park.

The Red Sox did some heavy hitting of their own in the opener, crushing the Braves, 13-3, as Daisuke Matsuzaka (6-2) won his fifth straight decision and Mike Lowell hit a grand slam.

Pitching on a rainy night against the team with baseball's best record, Smoltz (6-2) allowed three hits and one walk in seven innings. He won for the first time since turning 40 years old last Tuesday.

Smoltz remained unscored upon in all 202/3 innings he's pitched at Fenway Park. He struck out seven to move into 17th place on the all-time list with 2,833, one more than Mickey Lolich.

The Red Sox lost for the third time in their last 13 games. Boston's worst previous shutout loss was 16-0 to Minnesota on May 25, 1990.

The Braves won for the second time in seven games behind a 17-hit outburst led by Kelly Johnson's double, triple and homer and five RBIs. He lined out to right in the ninth inning, missing a chance to become the second Braves player to hit for the cycle since 1910. The last one to do it was Albert Hall in 1987.

But Brian McCann's two-run double in that inning gave the Braves their 12th extra-base hit, the most they've had since them moved to Atlanta in 1966. The Milwaukee Braves had 13 extra-hits against Brooklyn in 1954.

In the first game, Boston led, 12-0, before Matsuzaka allowed three runs in the seventh.

Matsuzaka struck out six and allowed nine hits in eight innings. He didn't issue a walk for his second straight outing.

"He just moves the ball around so much," Atlanta's Jeff Francoeur said. "He's got so many pitches. Nothing seems to go straight. . . .When he got a big lead, you could see he was getting more confident."

Lowell had four of Boston's 18 hits and drove in five runs. His big game increased his batting average to .333 and gave him 35 RBIs in 39 games.