The Nationals are 47-28 vs the NL East this year. They are coming off of a rare loss where they only had 4 hits.
Since the start of 2016 season, Roark is 4-0 with a 1.87 ERA and 0.97 WHIP against the Phillies. He has not given up more than three earned runs in a start since July 29.
Bryce Harper is back in the lineup adding extra punch to a already hard-hitting Nationals lineup, and it showed in his last start against the team.
The PHILLIES Mark Leiter carried a 3.88 ERA into September, but he has struggled this month. He has a 7.17 ERA in four starts, allowing 17 earned runs over 21 1/3 innings. He seems to have a dead arm.

I like the Nationals in this one and don't expect it to be very competitive at all.