Nationals 9, Marlins 2: Ryan Zimmerman belted a pair of homers and knocked in three runs while Tanner Roark pitched six scoreless innings to win his first major-league start as visiting Washington evened the series at one game apiece.Tyler Moore recorded two hits and two RBIs while Anthony Rendon and Jayson Werth had three hits apiece for the Nationals, who trail Cincinnati by eight games for the second National League wild-card spot. Roark (5-0) allowed only four hits, did not walk a batter and struck out four while throwing 71 pitches.Christian Yelich had a pair of hits and scored in a two-run seventh for the Marlins, extending his hitting streak to eight games. Miami starter Nate Eovaldi (3-6) allowed five runs and nine hits over three innings, tying his shortest stint of the season.Denard Span led off the game with a single and trotted home on Zimmerman's first blast to center field. Zimmerman hit the first pitch he saw from Eovaldi over the right field wall and Wilson Ramos added a two-run single in the third as the Nationals increased their lead to 5-0.Roark retired the first nine batters he faced before Chris Coghlan's single up the middle in the fourth, although he escaped a jam with a double play later in the frame. The Nationals tacked on a run in the sixth on Span's sacrifice fly and another in the seventh on an RBI double by Adam LaRoche.GAME NOTEBOOK: Washington LF Bryce Harper was a late scratch from the lineup due to a hip injury. Moore replaced him in the lineup. … Miami OF Juan Pierre singled in the sixth for his 2,212th career hit, passing Willie McCovey and tying Joe Kuhel for 176th on the all-time list, according to the Elias Sports Bureau. … Zimmerman, who had a career-best three homers at Baltimore on May 29, has four blasts in six September games.