The Mariners rang up the visiting Rockies in their first two games. I like their chances for a three game sweep. Their ace Castillo lost a step last time out, but still only allowed 2 runs over 6 innings after two near perfect earlier outings. Castillo's WHIP is a paltry 0.74 to date. The Rockies start rookie Davis today. He pitched fairly well in the spring but didn't last more than 3 innings. The last two Rockies starters managed just 3+ innings each, so Colorado will be looking for some innings from Davis today. Either that, or tax an indifferent bullpen. The Mariners have a considerable step up on the Rockies in relief pitching.

The Mariners' offense has been a bit of a disappointment this season, but has started to perk up in the last week. The Rockies are 26th in OPS on the road. The M's are a large favorite, but won by 7 and 2 runs in the first games of the series. Take the Mariners on the run line at -1 1/2 runs.