John Price
Gang Gang
- Sep 19, 2008
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Useless Thread MDCCXCVIII: Bon Jovi Appreciation Thread
- Thread starter Sega Dreamcast
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John Price
Gang Gang
- Sep 19, 2008
- 385,037
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John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
Expected Weighted On-base Average (xwOBA)
xwOBA is formulated using exit velocity, launch angle and, on certain types of batted balls, Sprint Speed.
xwOBA is formulated using exit velocity, launch angle and, on certain types of batted balls, Sprint Speed.
Expected Weighted On-base Average (xwOBA)
Definition
Expected Weighted On-base Average (xwOBA) is formulated using exit velocity, launch angle and, on certain types of batted balls, Sprint Speed.
In the same way that each batted ball is assigned an expected batting average, every batted ball is given a single, double, triple and home run probability based on the results of comparable batted balls since Statcast was implemented Major League wide in 2015. For the majority of batted balls, this is achieved using only exit velocity and launch angle. As of 2019, "topped" or "weakly hit" balls also incorporate a batter's seasonal Sprint Speed.
All hit types are valued in the same fashion for xwOBA as they are in the formula for standard wOBA: (unintentional BB factor x unintentional BB + HBP factor x HBP + 1B factor x 1B + 2B factor x 2B + 3B factor x 3B + HR factor x HR)/(AB + unintentional BB + SF + HBP), where "factor" indicates the adjusted run expectancy of a batting event in the context of the season as a whole.
Knowing the expected outcomes of each individual batted ball from a particular player over the course of a season -- with a player's real-world data used for factors such as walks, strikeouts and times hit by a pitch -- allows for the formation of said player's xwOBA based on the quality of contact, instead of the actual outcomes. Likewise, this exercise can be done for pitchers to get their expected xwOBA against.
Why it's useful
xwOBA is more indicative of a player's skill than regular wOBA, as xwOBA removes defense from the equation. Hitters, and likewise pitchers, are able to influence exit velocity and launch angle but have no control over what happens to a batted ball once it is put into play.
For instance, Marcell Ozuna produced a .327 wOBA in 2018. But based on the quality of his contact, his xwOBA was .359.
Definition
Expected Weighted On-base Average (xwOBA) is formulated using exit velocity, launch angle and, on certain types of batted balls, Sprint Speed.
In the same way that each batted ball is assigned an expected batting average, every batted ball is given a single, double, triple and home run probability based on the results of comparable batted balls since Statcast was implemented Major League wide in 2015. For the majority of batted balls, this is achieved using only exit velocity and launch angle. As of 2019, "topped" or "weakly hit" balls also incorporate a batter's seasonal Sprint Speed.
All hit types are valued in the same fashion for xwOBA as they are in the formula for standard wOBA: (unintentional BB factor x unintentional BB + HBP factor x HBP + 1B factor x 1B + 2B factor x 2B + 3B factor x 3B + HR factor x HR)/(AB + unintentional BB + SF + HBP), where "factor" indicates the adjusted run expectancy of a batting event in the context of the season as a whole.
Knowing the expected outcomes of each individual batted ball from a particular player over the course of a season -- with a player's real-world data used for factors such as walks, strikeouts and times hit by a pitch -- allows for the formation of said player's xwOBA based on the quality of contact, instead of the actual outcomes. Likewise, this exercise can be done for pitchers to get their expected xwOBA against.
Why it's useful
xwOBA is more indicative of a player's skill than regular wOBA, as xwOBA removes defense from the equation. Hitters, and likewise pitchers, are able to influence exit velocity and launch angle but have no control over what happens to a batted ball once it is put into play.
For instance, Marcell Ozuna produced a .327 wOBA in 2018. But based on the quality of his contact, his xwOBA was .359.
Barrel
Definition
The Barrel classification is assigned to batted-ball events whose comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage since Statcast was implemented Major League wide in 2015.
But similar to how Quality Starts have generally yielded a mean ERA much lower than the baseline of 4.50, the average Barrel has produced a batting mark and a slugging percentage significantly higher than .500 and 1.500, respectively. During the 2016 regular season, balls assigned the Barreled classification had a batting average of .822 and a 2.386 slugging percentage.
To be Barreled, a batted ball requires an exit velocity of at least 98 mph. At that speed, balls struck with a launch angle between 26-30 degrees always garner Barreled classification. For every mph over 98, the range of launch angles expands.
For example: A ball traveling 99 mph always earns 'Barreled' status when struck between 25-31 degrees. Add one more mph -- to reach 100 -- and the range grows another three degrees, to 24-33.
Every additional mph over 100 increases the range another two to three degrees until an exit velocity of 116 mph is reached. At that threshold, the Barreled designation is assigned to any ball with a launch angle between eight and 50 degrees.
Definition
The Barrel classification is assigned to batted-ball events whose comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage since Statcast was implemented Major League wide in 2015.
But similar to how Quality Starts have generally yielded a mean ERA much lower than the baseline of 4.50, the average Barrel has produced a batting mark and a slugging percentage significantly higher than .500 and 1.500, respectively. During the 2016 regular season, balls assigned the Barreled classification had a batting average of .822 and a 2.386 slugging percentage.
To be Barreled, a batted ball requires an exit velocity of at least 98 mph. At that speed, balls struck with a launch angle between 26-30 degrees always garner Barreled classification. For every mph over 98, the range of launch angles expands.
For example: A ball traveling 99 mph always earns 'Barreled' status when struck between 25-31 degrees. Add one more mph -- to reach 100 -- and the range grows another three degrees, to 24-33.
Every additional mph over 100 increases the range another two to three degrees until an exit velocity of 116 mph is reached. At that threshold, the Barreled designation is assigned to any ball with a launch angle between eight and 50 degrees.
Kairi Zaide
Unforgiven
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
John Price
Gang Gang
- Sep 19, 2008
- 385,037
- 30,538
PanthersPens62
Paul & Stanley
PanthersPens62
Paul & Stanley
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