Colorado @ Baltimore preview

Last Meeting ( Aug 17, 2013 ) Colorado 4, Baltimore 8

The Baltimore Orioles will try to turn a gift-wrapped victory into a winning streak when they host the Colorado Rockies on Sunday in the finale of their three-game series. Baltimore won 8-4 on Saturday on the strength of a seven-run third inning and benefited from an error, two walks, a wild pitch and a passed ball as it snapped a four-game slide. The Orioles moved within three games of Oakland for the second wild-card spot in the American League and are 5 1/2 games behind Boston in the East.

The Rockies are 6-2 in their last eight games with the help of catcher Wilin Rosario, who is hitting .385 with 11 RBIs during a nine-game hitting streak despite nursing a hamstring injury. The Orioles' Scott Feldman is 1-3 with a 7.66 ERA in four home starts since being acquired from the Chicago Cubs on July 2. He will oppose Jhoulys Chacin, who is coming off a strong performance against San Diego on Monday and has recorded seven straight quality starts.

TV: 1:35 p.m. ET, ROOT (Colorado), MASN2 (Baltimore)

PITCHING MATCHUP: Rockies RH Jhoulys Chacin (11-6, 3.18 ERA) vs. Orioles RH Scott Feldman (2-3, 5.18)

Chacin has alternated wins and losses over his last six decisions following a 14-2 victory over the Padres when he yielded one run and five hits in eight innings. The 25-year-old Venezuelan is 4-3 with a 1.87 ERA, 1.13 WHIP and .236 batting average against while yielding one home run in 57 2/3 innings covering nine road starts. Chacin, who has never faced the Orioles, is 2-2 with a 2.19 ERA and 1.00 WHIP in five starts since the All-Star break.

Feldman is 9-9 with a 4.00 ERA in 22 combined starts with the Chicago Cubs and Baltimore, and has pitched only once since Aug. 3. The 30-year-old from Kailua, Hawaii, earned a no-decision after allowing two runs (one earned) and four hits while striking out eight in 5 1/3 innings in the Orioles' 7-6 loss at Arizona on Monday. Michael Cuddyer is 7-for-13 with two home runs, three doubles and five RBIs against Feldman, who has three quality starts in seven outings with Baltimore.

WALK-OFFS

1. Baltimore's J.J. Hardy, who leads all shortstops with 22 home runs and 66 RBIs, was a late scratch from Saturday's lineup because of back spasms. He is listed as day-to-day.

2. Rockies closer Rafael Betancourt, who was out since July 14 because of appendicitis, pitched a perfect eighth inning Saturday. Betancourt, who missed nearly a month earlier in the season with a groin injury, has 15 saves in 16 chances.

3. The Orioles lead the major leagues with a .992 fielding percentage and are on pace to commit 48 errors this season. The record for fewest errors in a 162-game season is 65 - set by the Seattle Mariners in 2003 - while the 2007 Colorado Rockies hold the mark for highest fielding percentage at .989.

PREDICTION: Rockies 3, Orioles 2