Sean Forman: WAR is “GDP for baseball”

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There was some big news in the baseball stats community recently, as Baseball Reference and FanGraphs agreed to a common replacement level in their Wins Above Replacement statistic. Though the two sites’ computation of the statistic still differs in other ways, creating some uniformity in replacement level should clear up some of the confusion around the stat among casual observers.

Sean Forman, the creator of Baseball Reference, responded to some general criticisms of WAR yesterday. Most notably, he referred to WAR as “GDP for baseball”. GDP, of course, stands for Gross Domestic Product, an estimate of the market value of a country’s goods and services. WAR often gets tossed aside because it’s complicated, requires a lot of steps to calculate correctly, and is a single number that covers broad subject matter, but Forman shows how those criticisms are not levied against GDP despite being very similar in nature. If you trust GDP, you should trust WAR.

(Obligatory picture of Mike Trout above, just because.)

Athletics score 21 runs, rout Angels

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After drubbing the Angels 10-0 on Wednesday, the Athletics stayed hot, scoring 21 runs to once again rout the Angels on Thursday afternoon. Edwin Jackson got the start, yielding two earned runs on three hits and three walks with seven strikeouts over 5 1/3 innings.

The offense started in the bottom of the third inning, when the A’s plated five runs. That featured a two-run double from Matt Chapman and a three-run home run from Stephen Piscotty. In the fourth, the A’s scored seven more on RBI singles from Jed Lowrie, Khris Davis, Matt Olson, and Stephen Piscotty, which were followed up with an RBI double from Ramon Laureano and an RBI single from Marcus Semien. In the sixth, the A’s bolstered their lead to 18-2 when Laureano hit a bases-loaded single, Semien hit a bases-clearing double, Josh Phegley hit an RBI single, and Franklin Barreto knocked in a run with a double play. The following inning, with position player Francisco Arcia pitching, Nick Martini hit a two-run homer and Chad Pinder made it back-to-back jacks with a solo shot of his own, pushing the score to 21-2.

Arcia hit a solo homer for the Angels in the top of the ninth to make it 21-3, then Kaleb Cowart popped out to end the game. It’s the sixth time a team has scored 20-plus runs this season and the first since the Mets won 24-4 over the Phillies on August 16. The other occurrences: Dodgers 21-5 over the Brewers on August 2, Nationals 25-4 over the Mets on July 31, Diamondbacks 20-5 over the Padres on July 7, and Phillies 20-1 over the Marlins on April 7.

Notables in the box score for the A’s: Martini had three hits and three runs scored, Piscotty had four RBI, Semien had three hits and five RBI, and Phegley had three hits with three runs scored.

With Thursday’s win, the A’s cut their deficit to 3.5 games behind the Astros in the AL West. They have a six-game lead over the Rays for the second Wild Card and trail the Yankees by two games for the first Wild Card. Nine games remain in the regular season for the A’s.