The Reds didn't get a runner to second base until the ninth inning and another quiet offensive day meant another loss to the Nationals 4-2.
The Reds have now scored just 16 runs in the nine games since the All Star break and have lost eight of nine.
"We've got to get our guys feeling good again about what they're doing offensively," said Bryan Price. "We had a really good approach before the break and it hasn't been quite as good. Guys care. It matters to these guys. They're not going through the motions. We just don't have a lot to show for the effort."
Mat Latos (2-3) gave up three runs in the fifth inning. The Reds didn't score until the ninth when Devin Mesoraco drove in two runs with a double.
"You just have to have the faith, I guess," said Mesoraco. "Have faith that it'll turn around and faith that at some point you're going to do what you're capable of doing."
Jack Hannahan made his season debut for the Reds and was hitless in four at bats with two strike outs.
The Reds remain six games out of first place in the NL Central and start a three-game series with the Arizona Diamondbacks Monday at Great American Ball Park.
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