Series Preview: Colorado Rockies at Atlanta Braves

Kris Medlen will try to extend his 28-inning scoreless streak tonight against the Rockies.

With one swing of Chipper Jones' still powerful bat, the Atlanta Braves were able to stave off a sweep against the Philadelphia Phillies and gain some momentum heading into a four-game set against the Colorado Rockies.

Entering the series, Colorado sports a record of 55-77, and is in last place in the National League West. They also have a division worst run differential of -90.

A trio of outfielders have led the way offensively for the Rockies. Dexter Fowler is hitting .306/.391/.501 with a .386 wOBA and a 134 wRC+. He also has 13 home runs and 12 stolen bases.

Carlos Gonzalez enters with a line of .310/.380/.524 with a .383 wOBA and a 132 wRC+. He's second on the team in home runs (21) and first in steals (16). Tyler Colvin has received most of his plate appearances against right-handed hitters, and has put up an overall line of .294/.335/.557 with a .379 wOBA and 129 wRC+. He's got 16 home runs on the season.

Catcher Wilin Rosario is hitting .256/.302/.543 with a .350 wOBA and 110 wRC+. He also leads the team in home runs with 23 long balls in 2012.

First baseman Jordan Pacheo is hitting .309/.339/.416 while Josh Rutledge has a line of .353/.368/.633 with a .429 wOBA, 163 wRC+, and .374 BABIP.

Pitching matchups after the jump.

Monday September 3rd, 1:10 PM ET

Tyler Chatwood (RH) vs. Kris Medlen (RH)

No pictures this series sadly, as the widget isn't working as I write this. Chatwood has rotated between the bullpen and the rotation when he's been up with Colorado this season. He enters with a 4-3 record with 13 appearances, including six starts. Chatwood has an ERA of 4.81, FIP of 4.91, and xFIP of 4.30.

He has a 13.6% strikeout rate to go with a 10.2% walk rate. He's averaging about 5.5 strikeouts per nine innings, while averaging over four walks per nine. Chatwood has also vastly improved his ground ball rate from last year (with the Angels) to this season. His GB% was 47% last season, but it's all the way up to 55.7% this season.

Chatwood throws five pitches: a four-seam fastball, two-seam fastball, curve, slider, and change. Velocity wise, he throws hard as he averages over 94 miles per hour on the four-seamer, and 93 miles per hour on the two-seamer. Chatwood really relies on his two fastballs, throwing the two-seam 50% of the time and the four-seam 23% of the time.

In terms of his off-speed offerings, he'll use the curve and slider mostly while mixing in an occasional changeup. The slider averages just over 84 miles per hour, and is used primarily against right-handed hitters (especially with two strikes). The curve comes in at almost 77 miles per hour on average, and is mainly used against left-handed hitters.

His curve and change both have whiff/swing rates of over 27%, so they're easily his best swing and miss offerings. Chatwood's curve also has the highest ground ball/ball in play rate of any of his pitches.

Tuesday September 4th, 7:10 PM ET

Drew Pomeranz (LH) vs. Tommy Hanson.

Former Ole Miss star Drew Pomeranz takes on Tommy Hanson in game two of the series. Pomeranz has been shuffled back and forth between Triple-A and the bigs this year as well, and has a 1-8 record in 16 major league starts this season. He has a 5.13 ERA, 4.85 FIP, and 4.49 xFIP, while striking out almost over seven per nine and walking just under four.

Pomeranz has an 18.5% strikeout rate and a 9.7% walk rate. His issue has really been huge platoon splits, as Atlanta would be very smart to stack the lineup with right-handed hitters. Righties are destroying him to the tune of .294/.369/.509, while lefties are hitting just .125/.222/.125 against him.

The biggest difference is a large jump in line drive percentage, from 11% against LHH's to over 21% against RHH's.

In terms of stuff, Pomeranz throws a four-seam, two-seam, curve, and a change. Velocity wise, the four-seam averages just under 92 miles per hour while the two-seamer is just above 90 miles per hour. His four-seam has a solid 47% ground ball/ball in play rate on it. Pomeranz throws the pitch 67% of the time.

His curve is his main off-speed offering, and it's a good one. He throws it 14% of the time, mainly to left-handed hitters. The pitch has a 28% whiff/swing rate on it, the best of any of his pitches. It also has the highest GB/BIP rate of any offering as well.

Pomeranz throws his change exclusively to left-handed hitters, and the pitch has a 28% whiff/swing rate on it as well.

Wednesday September 5th, 7:10 PM ET

Alex White (RH) vs. Mike Minor

White, who hasn't made it out of the fourth inning in any of his past six starts, enters with a 2-7 record. He's another Rockie arm that has been shuttled between Triple-A and the majors so far in 2012. He has an ERA of 5.58, 5.11 FIP, and 4.47 xFIP.

White strikes out just over six batters per nine, while walking over four per nine. That's good for a 14.8% strikeout rate and a 10.5% walk rate for the season. He also sports a 55.7% ground ball rate thanks to an above-average sinker.

He throws four pitches: sinker, four-seam, slider, and change.

His fastball averages almost 94 miles per hour velocity wise, while the sinker comes in at an average of over 91 miles per hour. White throws the four-seam 43% of the time, and the two-seam 28% of the time. His two-seamer has a 67% GB/BIP rate on it, the best of any of his pitches.

The slider is his main off-speed offering, throwing it 19% of the time at an average velocity of over 84 miles per hour. He uses it more against right-handers (25% of the time) than left-handers (14% of the time). It has a big 20% whiff rate and an equally large 38% whiff/swing rate. It also has a 61% GB/BIP rate.

Thursday September 6th, 12:10 PM ET

Jhoulys Chacin (RH) vs Tim Hudson.

Chacin has been nails in his last three starts since coming off of the disabled list. On the season he is 2-4 in eight starts with a 4.85 ERA, 5.56 FIP, and 4.81 xFIP. He's an extreme fly-ball pitcher, as shown by his 41.2% ground ball rate.

He throws a four-seam, two-seam, curve, slider, and change. Both of his fastballs are averaging around 90 miles per hour this season, while his slider averages 81 miles per hour and the curve comes in at 78 miles per hour. Chacin's change averages 85 miles per hour.

Both fastballs get a decent amount of ground balls, especially the two-seamer, as it sports a 52.38% GB/BIP rate. His slider has a 15% whiff rate and a 29% whiff/swing rate. He doesn't use the curve as much, but it has a 31% whiff/swing rate on it that is the best of any of his offerings.

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