Play: Over
Rating: 8/10*

The Washington Nationals defeated the Seattle Mariners 10-1 on Tuesday to make it 12-1 in the last 13 in the series. I think their dominance continues Wednesday night as they hand the ball to Tanner Roark (3-2, 4.73 ERA). Roark is coming off a pair of rough outings, but he's usually solid home at National Park, going 23-14 behind a 2.97 ERA in 63 career appearances (44 starts). The Nationals are 8-2 in Roark's last 10 Wednesday starts and 16-5 in his last 21 starts vs. a team with a losing record.

The Mariners have plenty of injuries to their starting pitchers and hand the ball to 27 year old rookie Sam Gaviglio (0-0, 1.29 ERA). The right-hander has done well in his previous two appearances in the big leagues and shut out the White Sox through five innings home at Safeco his last time out. Taking on the Nats at Nationals Stadium should prove a much tougher task though, and he might not get a lot of backup from a bullpen that has been asked to cover a lot of innings lately.

Look for the Nats to win a high-scoring contest.