Stairs smacked a pair of two-run homers and Williams avoided a second straight blown save as the Pirates held on for an 8-7 victory over the Reds and avoided a three-game sweep.
On Wednesday, Cincinnati rallied for two runs against Williams in the ninth inning for a 4-3 victory, their major league-best 21st in their final at-bat.
This time, the Pirates took a 4-2 lead in the bottom of the third on Stairs' first two-run homer off starter
"The first home run to Stairs was a good pitch," Dempster said. "I threw it down near his feet over the plate. He just lifted it out of the park."
"He threw a 2-0 slider," Stairs said. "I thought I could go down and I was lucky to put it into the seats. The guys getting on base ahead of me makes it easier for me to do my job."
Pittsburgh had a 5-2 advantage in the fifth when Stairs chased Dempster with another two-run shot - his ninth homer of the season.
with a solo blast.
It was the fourth time this season the Pirates have hit back-to-back homers.
"Lately, I've been studying a lot of film," Stairs said. "I just try to follow what they're trying to do (when) they're pitching (Brian) Giles. I'm just glad that I'm swinging the bat."
Stairs, who only starts occasionally, has homered eight times in 21 games since coming off the disabled list.
"I'll just keep sending Stairs out there," Pirates manager
said. "I don't want to try to analyze what he's doing, don't want him to analyze it, either. He gives us another legitimate bat from the left side."
The Reds pulled within 8-5 heading to the ninth before
led off with a single against Williams and took third on Ken Griffey Jr.'s double high off the right field wall. After
plated Guillen and Griffey with a single to left.
But Williams, who was booed lustily, struck out
to ground into a game-ending double play as the Pirates averted their first three-game home sweep at the hands of the Reds since August 25-27, 1995.
"I'm glad I didn't touch the double play ball," Williams said of Stinnett's grounder up the middle. "The way things are going, I probably would have screwed things up."
Williams recorded his 22nd save in 26 chances, nailing down the win for starter
(5-3), who allowed four runs - three earned - and five hits in five-plus innings.
Dempster was rocked for seven runs and nine hits in four-plus innings.
"They beat me tonight, whether it was a good pitch or a bad pitch, right from the first batter," Dempster said.
"I thought Dempster had pretty good stuff," Reds manager
said. "For the most part, he put the ball where he wanted, just made a couple bad pitches."
The Reds went 4-8 on a season-high 12-game road trip. They began the trip three games out of first place in the National League Central and ended it just 3 1/2 games behind.
"We're glad this trip is over,"
said. "We didn't lose any ground."