Cincinnati looks for its first sweep since opening the season with three straight wins over the New York Mets from April 4-7.
The Reds beat the Nationals 4-3 in 14 innings Tuesday to post consecutive victories for the first time since a three-game winning streak from April 16-18.
It clinched its first series win since taking a three-game set against Houston from April 15-17. They then went 0-8-3 in 11 series.
Keisler, 0-for-4 in limited appearances with the New York Yankees and San Diego Padres, had to bat with runners at second and third and one out because the Reds had run out of position players in the longest game of the season for both teams.
“You always want to have something like that happen,” said Keisler, who allowed one walk in two innings for the win. “It was good to get a little energy going.”
Cincinnati looks for another dominant outing from Aaron Harang. The 6-foot-7 right-hander is 2-1 with a 2.37 ERA in four starts in May. He allowed one run and four hits, striking out a season-high nine in 7 1-3 innings in a 2-1 victory over the Cleveland Indians on Friday.
“The kid’s gone out and consistently given us that quality start,” Reds manager Dave Miley said. “It’s good for him and good for us.”
The Nationals stranded a season-high 17 in their fourth loss in five games.
“It’s no more frustrating than the way it’s been going lately,” Washington manager Frank Robinson said. “We were winning these close games earlier. Now, we’re not. We can’t get the big hit. Until we get some hits with men on base, it’s going to be frustrating.”