'Tis the season for me to to write a post about how good Matt Holliday is at baseball so that I can give it a punny headline.

In 2013, as with every other year Holliday's worn the birds on the bat, Holliday performed at an elite level. For your consideration, Holliday's 2013 stats:

G PA R HR RBI BA OBP SLG OPS ISO wOBA wRC+ fWAR 141 602 103 22 94 .300 .389 .490 .879 .190 .383 148 4.5

Holliday's age 33 season for the Cardinals was close to his career average season.

HOLLIDAY: 2013 vs. CAREER AVERAGE SEASON



PA R HR RBI BA OBP SLG OPS ISO wOBA wRC+ Average 612 95 25 97 .311 .387 .531 .911 .220 .394 140 2013 602 103 22 94 .300 .389 .490 .879 .190 .383 148

The chart makes clear that Holliday's power was lacking in 2013, as compared to his average career season. The reasons for this are two: Busch Stadium is particularly sapping to right-handed batters' power and slugging has fallen off over all of baseball in recent years. To illustrate, let's compare Holliday's all-universe 2007 with his less-ballyhooed 2013.

In 2007, Holliday placed second in the National League MVP vote on the strength of the following batting feats:

G PA R HR RBI BA OBP SLG OPS ISO wOBA wRC+ 158 713 120 36 137 .340 .405 .607 1.012 .267 .428 151

Holliday's 2007 batting line is eye-popping. It was worth 7.8 Fangraphs Wins Above Replacement (fWAR). Holliday's 2013 was worth 4.5 fWAR. On the surface, Holliday's 2007 in Colorado was clearly better than his 2013 seasons in St. Louis.

HOLLIDAY: 2007 vs. 2013

Year PA R HR RBI BA OBP SLG OPS ISO wOBA wRC+ 2007 713 120 36 137 .340 .405 .607 1.012 .267 .428 151 2013 602 103 22 94 .300 .389 .490 .879 .190 .383 148 Diff. -111 -17 -14 -43 -.040 -.016 -.117 -.133 -.077 -.045 -3

No matter which rate stat one looks at, Holliday's 2007 was superior to his 2013 on paper. That is, until we get to the last column--Weighted Runs Created Plus (wRC+).

wRC+ is a stat that takes a players batting line and adjusts it in two ways: (1) It adjusts for park effects; and (2) It adjusts for the overall run-scoring environment of the league. wRC+ also adjusts a player's batting line to a scale on which 100 is average. Every point above 100 is one percentage point above average (and every point below 100 is a percentage point below average).

The reason that Holliday's 2007 and 2013 are so close in wRC+ is that Holliday put up the two offensive lines in very different batting environments. In 2007, he was hitting in the high altitude hitting paradise of Denver during a healthy run-scoring period for MLB overall. Last season, Holliday was hitting in the right-handed batting hell of Busch Stadium III during an offensive depression in MLB as a whole.

OVERALL MLB BATTING STATS: 2007 vs. 2013

Year BA OBP SLG OPS ISO wOBA 2007 .268 .336 .423 .758 .155 .331 2013 .253 .318 .396 .714 .143 .314

RHB STATS: COORS 2007 vs. BUSCH 2013

Year BA OBP SLG OPS ISO wOBA 2007 .294 .351 .469 .820 .175 .355 2013 .243 .302 .356 .658 .115 .291

Busch Stadium was death for righthanded batsmen in 2013. The difference in righthanded batter performance in 2007 Coors and 2013 Busch is staggering. So large in the gulf that Holliday's 2013 batting line in Busch might be more impressive than his 2007 stats in Coors.