Met RHP Matt Harvey and Red Sox Clay Buchholz are tied for the MLB lead with 4 wins each. Astros RHP Philip Humber leads the MLB in losses with 4. Giants RHP Sergio Romo has the MLB lead with 8 saves.

Buchholz has pitched 30 innings to lead the MLB. He pitched 7 innings in each of his first two starts. Then he pitched 8 innings in each of his third and fourth starts.

Tigers RHP Max Scherzer leads all innings qualified pitchers with at a 14.21 strikeouts per nine innings rate. Twins RHP Kevin Correia, 3.38 K/9, is the lowest. Correia’s has a 2.95 earned run average. Scherzer has a 2.84 ERA.

Giants RHP Tim Lincecum so far has walked 5.56 batters per nine innings, the highest rate in the MLB. Cardinals RHP Adam Wainwright (29ip) and Athletics RHP Bartolo Colon (19ip) each have not walked a batter in 2013.

Twins RHP Vance Worley has allowed the worst batting average on balls in play, .403, among innings qualified pitchers. He has a career .316 BABIP allowed. Mariners RHP Hisashi Iwakuma has allowed a MLB low .119 BABIP, so far in 2013.

Athletics LHP Brett Anderson has generated the highest ground ball rate, 65.5 percent, among innings qualified pitchers. Orioles LHP Wei-Yin Chen, 29.7 percent, has the lowest rate.

Clay Buchholz and Nationals LHP Ross Detwiler each have a 0.90 ERA, tied for the lowest among innings qualified pitchers. Padres RHP Edinson Volquez’s 8.84 ERA is the highest.

Adam Wainwright has the highest wins above replacement, 1.5, for a pitcher so far in 2013.

In 18.2 innings in 2013 Rays RHP Roberto Hernandez (Formerly Fausto Carmona) has intentionally walked 3 hitters to lead the MLB. He only intentionally walked 3 hitters in 659.1 innings pitched, 114 games, between 2008 and 2012.

Edinson Volquez has leads the MLB with 5 wild pitches.

Tigers RHP Justin Verlander has thrown 439 pitches, the most so far in 2013.

Ross Detwiler has thrown a fastball 92.5 percent of the time so far in 2013, to lead innings qualified pitchers. Outside of Blue Jays knuckleballer, R.A. Dickey, Rangers RHP Yu Darvish has thrown the fewest percentage of fastballs, 30.6 percent.

Among innings qualified pitchers Nationals RHP Stephen Strasburg has averaged the fastest fastball, 95.7 miles per hour. When you include relievers, basically anyone who’s pitched in 2013, Cardinals RHP Trevor Rosenthal has the highest average fastball velocity at 97.7mph.

Reds LHP Aroldis Chapman’s average fastball has dipped year of his career so far and the trend has continued into 2013.

- 2010: 99.6 mph. 15 games.
- 2011: 98.1 mph. 54 games.
- 2012: 98.0 mph. 68 games.
- 2013: 97.1 mph. 10 games.

The two lowest average fastball velocities in the MLB among innings qualified pitchers, are both on the Blue Jays. R.A. Dickey’s fastball has averaged 82.2 mph and LHP Mark Buehrle’s has averaged 84.7 mph.

Batters have swung at 39.3 percent of Adam Wainwright’s pitches outside the zone so far in 2013, to lead all innings qualified pitchers. Also among innings qualified pitchers, hitters have been most patient hitting off of Diamondbacks RHP Trevor Cahill, swinging at only 37.1 percent of his total pitches.

Hitters have only made contact on 61.7 percent of Red Sox RHP Ryan Dempster’s pitches so far in 2013, the lowest rate among innings qualified pitchers.

Cardinals rookie RHP Shelby Miller has thrown a first pitch strike 73.2 percent of the time, to lead the MLB. Batters have a .768 On-base plus slugging after Miller starts a plate appearance with a ball so far in 2013. When he starts the count with a first pitch strike batters only have a .404 OPS. Padres RHP Jason Marquis has started with a first pitch strike only 46.3 percent of the time, the lowest percentage in the MLB.

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Source: Fangraphs & Baseball-Reference. Stats as of Sun. April 21, 2013 4:18 AM ET