Josh Willingham reacts after striking out swinging in the ninth inning of yesterday’s 10-4 loss. (AP Photo/David Zalubowski)

Rockies 10, Nationals 4: So much for trying to salvage something from a miserable Rocky Mountain adventure — Colorado pounded out eight extra base hits en route to a win and a sweep over the hapless Nats. For the second straight game, Washington’s starter couldn’t get out of the fourth inning — yesterday, it was Ross Detwiler’s turn. The 23-year-old lefty pitched adequately enough until the fifth inning, when the wheels abruptly fell off. Detwiler’s rotten fifth: single, single, walk, base-clearing triple, and an early shower — four runs, three hits, no outs recorded. Yuck. And somehow, the relief pitching and fielding were even worse than yesterday’s debacle — Adam Dunn committed two errors filling in for Nick Johnson at first, and Julian Tavarez and Ron Villone combined to allow four runs in the last three innings. Nyjer Morgan was the lone bright spot of the day: the speedy center fielder continued his hot streak with a three-for-four day. The Nats now head to Houston for a five-game set — including a game that will start in the 11th inning — and their last chance to grab something positive before the All-Star break.