# Tag Info

Accepted

### Sabermetrics and statistics, why so fitting for baseball?

Most of baseball takes place in a single one on one interaction: Pitcher throws, Batter hits. In that sense, it is fairly easy to tease out the performance of the batter and the pitcher based on the ...
• 12.9k
Accepted

### Why data-driven approach to soccer is slow to catch on?

The simple answer is because baseball is much easier to analyze than soccer: baseball very easily breaks down into a series of separate events (pitches), each of which have an clear outcome (strike, ...
• 24.6k
Accepted

### Has W.A.R. been used in this fashion?

There has been analysis done to look at the correlation between individual WAR and the record of teams. Most entities that calculate WAR make the same assumption that a team full of replacement level ...
• 699

### How are wOBA constants chosen?

From the Fangraphs wOBA explanatory page: Exactly how much to weigh each of the components of wOBA was determined using linear weights. Linear weights are calculated using the average Run ...
• 12.9k

### Why is ERA multiplied by 9?

ERA stands for Earned Run Average and to put it in other words, the average number of runs given up per game. Earned runs divided by innings pitched gives you the average number of runs per inning, ...
• 1,154

### Elo-like metrics that replace ERA/BA/OBP that account for the strengths of the pitcher/batter?

No element of ELO would make sense for baseball at the individual performer level. Individual performers don't really have individual outcomes - every outcome depends on everyone else; and further, ...
• 12.9k
Accepted

### How to determine winning team from the MLB retrosheet "event" file?

No, there is no "winning" record in the event file. That is what the Game file is for. I don't think there's a better way using the event file than to match the winning pitcher (which is ...
• 12.9k

### Why data-driven approach to soccer is slow to catch on?

According to Nate Silver in The Signal and the Noise a major reason that Baseball is so amenable to analysis is that it's played a lot more. Topflight baseball schedules have 162 games a season ...
• 121
1 vote
Accepted

### Why is Gio Gonzalez's WAR is 0.01 ahead of Max Scherzer in ESPN's current WAR rankings?

Well it's depends on the type calculation that being done and there is no one way to determine WAR. As for FIP values, ESPN uses WAR data provided by Baseball Reference which doesn't use FIP values ...
• 6,504
1 vote
Accepted

### What determines the coefficients in the definition of slugging percentage?

I think you just have the definition of slugging percentage wrong. Quoting from Wikipedia: [Slugging percentage] is calculated as total bases divided by at bats SLG = ((1B) + (2 x 2B) + (3 x ...
• 24.6k

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