# Questions tagged [sabermetrics]

For questions about statistical or other mathematical analysis of players and teams to identify potential advantages or opportunities. The term is most commonly used with regard to baseball, but other sports (e.g. American football) can benefit from similar analysis.

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### Why is ERA multiplied by 9?

Mathematically speaking, the 9 doesn't contribute any meaningful information. The same information would be encoded in the ERA using Earned Runs/Innings Pitched
322 views

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

A lot of Baseball teams are using data-driven approach and computer modelling to help them better succeed in games. The most famous example being Billy Beane of Oakland Athletics (2001-2003), ...
65 views

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

As of the time of this post, Gio Gonzalez's WAR is 0.01 ahead of Max Scherzer. It's a pretty small difference, but when I look at the more traditional stats, it's really hard to see why they should ...
69 views

### Is there a more complete baseball Leverage table?

I am interested in doing some baseball analysis with Leverage. I found Tom Tango's Leverage table from The Book as well as Baseball-Reference's data pages (e.g., this pitching page). However I ...
79 views

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

Whether justifiably or not, in modern baseball conversations, W.A.R. (wins above replacement) has become the goto statistic to qualify who's the best in the game. My question is, can it be applied ...
1k views

### How are wOBA constants chosen?

Fangraphs has a list of wOBA constants. They seem pretty arbitrary to me, though. How were those created?
62 views

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

When calculating slugging percentage, why do the numbers of singles, doubles, and triples get multiplied by 2, 3 and 4, respectively, in the numerator? And, perhaps related, why does the HR count ...
399 views

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

I am looking into defining my own simple metrics for a video game to evaluate how well a player is performing. To that regard I have been reading about Sabermetrics and the general impression I get ...
3k views

### Baseball and DWar

Two part question really. What is the formula for calculating DWar? Also, as I understand it; it seems to rely on some stats that were historically considerably less stringently monitored than say ...
133 views

### What's the chance of 6 swings and misses in a row using only your SO pitch?

I was watching a Masahiro Tanaka game last year and he got out of a men on 2nd and 3rd with no outs jam by striking out the first two batters. He just kept throwing his "out pitch" and they just kept ...
1k views

### Normal Distribution and Sports

One core idea in sports analytics is to be skeptical of hot streaks as being evident of anything more than just something a normal distribution would account for. What I've never understood, is would ...
6k views

### Sabermetrics Applied to American Football, Specifically the NFL

Sabermetrics and advanced stats have become a big part of baseball in the recent years. Defensive shifts are growing rapidly. "Old School" stats are becoming less relevant compare to "New School" ...
114 views

### Why do the Oakland As value a low strikeout rate?

Last year, the Oakland A's traded Grant Green to the Los Angeles As for Alberto Collaspo. Both had similar statistics (as of 2013), and both can play second base. (Collaspo has since been moved to ...
164 views

### A new sabermetric baseball statistic?

Let's award a batter 2 points for a single, 3 pts for a double, 4 pts for a triple, and 5 pts for a homerun. To complete the statistic, let's award the batter 1 point for a walk, and 1 point ...
279 views

### How would an “inside the park home run” affect BABIP?

"Normal" home runs are those that leave the park, that fielders don't have a chance of catching. As a result, they are not counted in the "balls in play" part of BABIP. On the other hand, an "inside ...