• Hero: Jimenez (3-2) won, allowing one run in seven innings, and has now allowed two earned runs in last 20 innings.
• Rockin' along: With two hits, Matt Holliday extended his hit streak to 15 games. He also reached the 100 RBI mark for the second straight season with a run-scoring single in the fifth.
• Steady climb: With the win, the Rockies moved back into a tie with the Dodgers for third in the NL West.
• Quotable: "They have a chance to have a very good pitcher at this level. That's terrific stuff when you can pitch a whole game in the mid-90s with that curve, a changeup and a slider. Four pitches in a kid that young." -- Washington manager Manny Acta on Jimenez
-- ESPN.com news services
Rockies 5, Nationals 1
DENVER (AP) -- The Rockies have been counting on some inexperienced arms in their quest for an NL playoff spot.
Ubaldo Jimenez showed the team again Saturday night that he can be trusted to do his part.
"This guys is making his way in a very calming fashion," Colorado manager Clint Hurdle said. "He has slowed things down and shown a lot of poise and confidence."
Jimenez (3-2) fanned four and walked two in his third consecutive stellar outing. In his last three starts, he's allowed one run and 10 hits in 20 innings.
"They have a chance to have a very good pitcher at this level," Washington manager Manny Acta said about Jimenez. "That's terrific stuff when you can pitch a whole game in the mid-90s with that curve, a changeup and a slider. Four pitches in a kid that young."
With the win, the Rockies remained 4 1/2 games behind the San Diego Padres in the wild-card race. Colorado also moved back into a tie with Los Angeles for third in the NL West.
"I threw more sliders because my curve ball wasn't any good," Jimenez said. "My slider got me strikeouts and groundballs when they were looking for fastballs."
Tim Redding (3-4) lasted four-plus innings in his shortest outing of the season, giving up five runs and six hits and walking five. Redding had won his previous two starts.
Tulowitzki homered into the Colorado bullpen in right field to tie the game at 1 in the bottom half of the inning.
"I sat on a fastball on 3-2," Tulowitzki said. "There's nothing else to look for in that situation and I got it."
Jimenez worked out of a jam in the fourth inning. Dmitri Young led off with a single and Austin Kearns drew a walk. Jimenez struck out Wily Mo Pena and retired Ronnie Belliard and Brian Schneider to end the inning.
Hawpe homered just inside the left field foul pole in left in the fourth inning. The blast followed a one-out single by Garrett Atkins and gave Colorado a 3-1 lead.
"It was a four-seam fastball that was down in the outside corner of the plate," Redding said. "As much as I hate to do it, I have to tip my cap there."
Redding didn't retire anyone in the fifth inning and left after allowing an RBI single to Holliday and walking Atkins with the bases loaded to force in a second run and make it 5-1. Chris Schroder replaced Redding and retired the side without any further damage.
"Tim didn't throw strikes," Acta said of Redding. "And this is the wrong place to pitch behind in the count."
RHP Jason Bergmann will join the Nationals in Los Angeles and be activated from the DL in time to make Tuesday's start against the Dodgers. ... Schroder retired all nine he faced and struck out five in three innings of relief. ... RHP Aaron Cook (strained left oblique muscle) will throw a simulated game Tuesday in San Francisco. ... Holliday has a 15-game hitting streak, and made two sliding catches in short left field. ... Tulowitzki has a 10-game hitting streak.