November 16, 2012

WAR ON STATS

A favorite stat for people to debate the value of baseball players is WAR. WAR stands for Wins Above Replacement. A player's WAR number is supposed to represent the number of team wins the player has added to the team total above that of a AAA-AAAA replacement player. The calculation includes factors for defensive support and value for high leverage or more difficult positions and situations.

The components in the WAR calculation track how much above "average" a player was during a season. But the WAR number itself is Wins Above Replacement. It has been said that the difference between an average player and a replacement level player is about 20 runs during a full season. The runs-to-wins is put through a conversion formula (typically, 10 runs equals 1 win).

This is fine to attempt the judge the value of individual players in an average talent pool. But baseball is still a team sport relying upon individuals to get wins.

Which led me to check on the 2012 season from a team perspective.

The San Francisco Giants won the World Series. The regular season record was 94-68. If you total up all the hitting and pitching player WAR numbers you will find:

28.9 hitter WAR + 5.5 pitcher WAR = 34.4 team WAR.

Then the question, what is an "average" baseball team? In a 162 game season, it is simple. A team that goes .500 (81-81) is average. Two teams ended 2012 at .500: Arizona and Philadelphia.

The Diamondbacks season record was 81-81. If you total up all the hitting and pitching player WAR numbers you will find:

17.7 hitter WAR + 13.3 pitcher WAR = 31.0 team WAR.

The Phils also finished the season 81-81. If you total up all the hitting and pitching player WAR numbers you will find:

15.0 hitter WAR + 10.8 pitcher WAR = 25.8 team WAR.

If we compare the World Series champion Giants to the Diamondbacks and Phils team WARS, the Giants team was +3.4 WAR better than Arizona and +8.6 WAR better than Philadelphia.

Since we have "two" average teams, if we average the team WARs (56.8/2) the average team WAR is 28.4. If you compare the average team WAR of 28.4 to the Giants team 34.4, one can calculate that the Giants as a team were 21 percent better than an average major league team in 2012.

If you compare that to victories, the Giants were +13, or 16 percent above an average .500 team.

Now for the other end of the standings.

The Chicago Cubs had a bad rebuilding season. The team 2012 record was 61-101. If you total up all the hitting and pitching player WAR numbers for the Cubs you will find:

11.8 hitter WAR + (0.1) pitcher WAR = 11.7 team WAR.

If you compare the Cubs team WAR of 11.7 to the Giants team WAR of 34.4, the Cubs are -22.7 WAR. That means the Cubs were 66 percent worse than the Giants.

If you compare the Cubs team WAR of 11.7 to the average .500 club WAR of 28.4 WAR, the Cubs are -16.7. That means the Cubs were 58.8 percent worse than an average team in 2012.

So how far are the Cubs away from being a competitive ball club?

The WAR scale for players indicates that one who is 8.0 WAR plus is an MVP type player; 5.0 WAR plus is an All-Star caliber player; 2.0 WAR plus is a starter; 0-2 WAR is a bench player; and below 0 is replacement level.

The highest WAR player on the roster is Darwin Barney at 4.6, then Starlin Castro at 3.5, then Ryan Dempster at 3.3 (who is no longer on the team) and then Anthony Rizzo at 2.2. Barney's WAR has to be skewed by his defense error less streak. Even so, based on the WAR player scale, the Cubs only have three starters on their 25 man roster, and not one is of All-Star caliber.

In order for the Cubs to competitive, the team needs double digit WAR numbers for hitting and pitching. The team needs to add 11 players of 2.0 WAR  and above (6 fielders and 5 starters) just to become an average team in 2013.