Washington at Arizona

The Nationals have won two in a row on the road, but I wouldn't get too excited about it, as they remain 4-11 on the road overall, and last year led the major leagues with 56 road losses. They went all of last season without winning three straight games on a road trip in a National League Park. John Lannan can be good at times, but overall he has been average at best with a 4.59 ERA. Doug Davis has been good so far this year with a 3.52 ERA on the season, but against the Nats he has been better for his career at 3.09. It’s hard to get behind a team that hasn't won three straight on the road in over a year, so I'm going with the Diamondbacks in this one.