Fister (5-2) pitched six innings, allowing seven hits and four runs. He took the blame for the loss.
“I didn’t do my job today,” Fister said. “It basically comes down to poor execution. I’ve got to a lot better when it comes to critical pitches. That’s what it comes down to.
Adams gave St. Louis a 2-0 lead in the second inning with a two-run shot on an 0-2 pitch, his sixth homer of the season. Adams‘ father, Jamie, has been visiting from Pennsylvania on Father’s Day weekend.
Adams has homered in all three games since coming off the disabled list with a torn calf muscle.
“The home runs were the two biggest things for me,” Fister said. “I need to find a better effort.”
“I was trying to get him to swing at it and get a ground ball,” Fister said. “I got too much of the plate and that’s what he does and does well. He made me pay for it.”
Adams maintained he was just protecting the plate.
“I knew the guy could throw it anywhere in the zone and I was just ready to get the barrel on the ball,” Adams said.
The Nationals loaded the bases in three innings, stranded 10 runners and scored on two bases loaded walks.
“It’s the ebbs and flows of the game,” Washington manager Matt Williams said. “It’s that time of the year where heavy legs start to set in a little bit. We had the bases loaded three times and just didn’t get it done today.