To do this drill, you stride over the outside stick, and while completing the swing, work on getting the back foot over the back stick, really focusing on weight transfer. Note how in the pictures, she has stepped past the stick and to the tee, and in the next frame, began shifting her weight from her back leg to the ball. This drill is excellent for weight transfer and using the lower half to drive the ball.
OBP has become synonymous with the book “Moneyball” because at in the early 2000s, teams weren’t properly valuing players with high OBPs and the Oakland A’s could swipe talented players for cheap because they were one of the few teams paying attention to walk rate. These days, every team has come to accept how vitally important OBP is to their success, and that particular “market inefficiency” has been closed.
GB% – This stands for ground ball percentage, which is the percentage of balls a player hits that end up as ground balls. The league average on grounders last year was just .239, which means that only about 24% of ground balls end up as hits. So, because of that, you would expect players who hit a lot of grounders to have a lower BABIP, right? This is not necessarily true, however, because most ground ball hitters end up being the speedsters that are more likely to beat out grounders than your average player. In general, you can expect players with a high GB% to have a slightly higher BABIP, but you definitely want to take a look at their speed before making that assumption.
Recall that we can use the batter's OBP, the pitcher's OBP, and the league OBP to find an expected OBP for a given matchup using the odds ratio. Since gOBP is still a proportion, we can use it to perform the same analysis. To determine which is more accurate, we first group the batters and pitchers into bins with width five points (.005). We then find an expected OBP for all pitchers and batters in that bin, and compare this to the actual results of those matchups. As an example, consider the first pair in our database: David Aardsma and Bobby Abreu, who faced each other once in 2010.
In terms of detailed analysis, looking at a player's ability as a power hitter often involves using statistics such as someone's 'slugging percentage' (a function that's calculated by evaluating someone's number of moments at bat in relation to the nature of their hits and strikes). 'Isolated Power' (ISO), a measure showing the number of extra bases earned per time at bat that's calculated by subtracting someone's batting average from his slugging percentage, is another statistic used.[2]
Last season, the average hitter who belted between 20 and 24 home runs provided 2.9 wins above replacement, similar to what Asdrubal Cabrera (.280 average with 23 home runs and .810 OPS) gave the New York Mets in 2016, for which he was paid \$8.25 million. A 40-home run hitter, like Nelson Cruz (.287 average with 43 home runs and a .915 OPS), averaged 4.5 fWAR but was paid \$14.25 million. In other words, you could have two Cabrera-type hitters for a little more than it would cost to sign one like Cruz and get slightly more value overall.
Comparing a baseball or softball swing to a car engine is something that I do almost everyday. It’s an easy way to help kids and parents understand how the system inside the swing works. For someone who doesn’t look at hundreds of swings a day, it can be difficult to identify or help a player become a more efficient swinger of the bat. A lot of times coaches will see a result like a pop up or ground ball and associate the weak contact with lack of effort. Most of the time, this is simply not the case. In the following article I hope to help players understand the importance of not making “early mistakes” and also help coaches and parents break down the efficient swing. To do so, we will break the swing down into three phases.  The three phases are 1. Acceleration/Angle Creation, 2. Maintain, 3. Release. They are illustrated in the picture below in a Playoff home run by Francisco Lindor.
Of course, on base percentage isn't the only important statistic to determine the effectiveness of a baseball player.  This is because all walks drawn only put the hitter on first base and will rarely drive in a run, while hits are capable of putting the hitter on 2nd or 3rd base, or even crossing the plate with a home run.  Along with that, hits are capable of driving in many more runs than walks.  Other stats are used to calculate these, such as slugging percentage and OPS, or on base percentage + slugging percentage.  These statistics and their impact on baseball will be examined in later articles.  In the case of on base percentage, it is a hugely underrated stat that pays dividends for individuals and teams willing to take pitches.  It allows teams such as the Chicago White Sox, despite an extremely low team batting average, to still compete and put up a lot of runs.  Although it can't necessarily be proven that on base percentage is more important in judging the effectiveness of baseball players, it can be nonetheless shown that a hitter without an extremely high batting average can still be a great contributor and table setter for a major league team.

# On-Base Percentage (OBP) measures the most important thing a batter can do at the plate: not make an out. Since a team only gets 27 outs per game, making outs at a high rate isn’t a good thing — that is, if a team wants to win. Players with high on-base percentages avoid making outs and reach base at a high rate, prolonging games and giving their team more opportunities to score.

Now that we’ve covered slash line statistics and plate discipline numbers, all that’s left to go over is batted ball data. The most common batted ball stat that is used is batting average on balls in play, or BABIP for short. While a typical batting average tells you how often a player gets a hit in general, this batting average determines how often a player ends up getting a hit when they hit the ball within the field of play. It is calculated by subtracting home runs from totals hits and dividing that by at bats minus strikeouts minus home runs plus sacrifice flies, which translates to the following formula:
GB% – This stands for ground ball percentage, which is the percentage of balls a player hits that end up as ground balls. The league average on grounders last year was just .239, which means that only about 24% of ground balls end up as hits. So, because of that, you would expect players who hit a lot of grounders to have a lower BABIP, right? This is not necessarily true, however, because most ground ball hitters end up being the speedsters that are more likely to beat out grounders than your average player. In general, you can expect players with a high GB% to have a slightly higher BABIP, but you definitely want to take a look at their speed before making that assumption.
In baseball statistics, on-base percentage (OBP) is a measure of how often a batter reaches base for any reason other than a fielding error, fielder's choice, dropped or uncaught third strike, fielder's obstruction, or catcher's interference. OBP is calculated in Major League Baseball (MLB) by dividing the sum of hits, walks, and times hit by a pitch by the sum of at-bats, walks, times hit by pitch and sacrifice flies.[1] A hitter with a .400 on-base percentage is considered to be great[2] and rare;[3] only 55 players in MLB history with at least 3,000 career plate appearances (PA) have maintained such an OBP. Left fielder Ted Williams, who played 19 seasons for the Boston Red Sox, has the highest career on-base percentage, .4817, in MLB history.[4] Williams led the American League (AL) in on-base percentage in twelve seasons, the most such seasons for any player in the major leagues.[4][5] Barry Bonds led the National League (NL) in ten seasons, a NL record.[5][6] Williams also posted the then-highest single-season on-base percentage of .5528 in 1941, a record that stood for 61 years until Bonds broke it with a .5817 OBP in 2002.[7] Bonds broke his own record in 2004, setting the current single-season mark of .6094.[7]
Runs scored (R): Aside from when a player hits a home run, he'll need some help from teammates -- most of the time -- to score a run. Still, players can do a lot to increase the number of times they score. Getting on base frequently, stealing bases, taking extra bases on singles or doubles, taking a base on a passed ball right in front of the catcher or even being such a scary baserunner to draw a balk are ways to spin around the bases better than others. Guys who score the most runs are great players, not those simply lucky to have good teammates driving them in. Here are the top 10 all-time in runs scored: Rickey Henderson, Ty Cobb, Barry Bonds, Hank Aaron, Babe Ruth, Pete Rose, Willie Mays, Cap Anson, Stan Musial and Alex Rodriguez. Marginalize that group at your peril. - Snyder
```At the point of contact, we see a culmination of every drill worked on for power thus far. First, from the interlocking throws drill, we have a good palm up, palm down path at the point of contact. From the half and full turn drills, we see she has great hip rotation to the ball, from the paint stick and don’t squish the bug drills, she has excellent weight transfer to the launch point, so great that her back foot has come off the ground and moved forward. She is generating power from the lower half and harnessing it with her bat path. The crossover drill is a great drill to finish off the set of previous drills designed to generate power for softball.
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Power development for batting performance can be improved drastically through proper strength and power training. It is not to be trained through these ridiculous imitations of sport specific movement such as adding resistance bands or tubing to your bat and taking swings against the resistance of these tubes. I’ve also seen implements being attached to cable systems while mimicking swing patterns as well.

During Phase 3 or the release, the hitter will allow their arms to relax so the the barrel will continue upward through the path of the pitch with very little loss of bat speed.  Like I previously said, Phase 3 can happen earlier or later depending on the adjustment the hitter must make. If need be, the hitter can make contact during Phase 3 if they are early.  This is when you will see a hitter at contact with already extended arms.  This is not ideal but will save hitters when their timing isn’t perfect.  Just another reason why having a nice upward swing path is so important for longevity as a hitter.
The conclusion of the GIIB article shows that team gOBP has a correlation coefficient of 0.95 with R/G, a slight but meaningful improvement over the correlation coefficient of 0.93 between team OBP and R/G. This first test is straightforward: using Retrosheet, I collected team R/G, OBP, and gOBP for all 1,482 team seasons dating back to 1955. I then fit a linear model to these data and computed the correlation coefficients for each pairing. The results are below.
Here at Red Reporter, some of us are more interested in statistics than others, but we've all been known to use these newer metrics. Unfortunately, we don't always take the time to explain the figures. I know that I'm frequently guilty of inserting statistics without providing an adequate illustration of their meaning. In an effort to provide context to these figures and their use, we've decided to roll out a new series of posts exploring these new metrics. We will start with the simpler statistics and work our way to others from there. You won't need a statistics or mathematics degree to understand these posts, and best of all, we'll have fun. I promise.
Just before the pitcher pitches the baseball, you should be standing in a perfect stance so that you can hit the ball right. A good stance includes planting your feet firmly on the ground, slightly wider than your shoulders and your weight should be balanced on the balls of your feet. Such a stance will give you the rapid swinging freedom which you need when swinging the bat at the incoming ball.
My intention here is not to criticize Leyland, nor is it to promote sabermetrics as a healthy lifestyle for all baseball fans. I’d just like to share the location of a very comfortable place that I’ve found in the world of statistics, that has a pretty good overall viewpoint and doesn’t make me dizzy when folks start speaking in saber. I’d also like to make this a place that even a casual baseball fan, one that is intimidated by "advanced metrics" can get to rather easily, without getting queazy. It’s really not a steep climb.
Slugging percentage (SLG), the preferred statistic of Jim Leyland, is simply the number of total bases, again not counting walks, divided by the number of at bats. Four bases for a homer, three for a triple, two for a double, and one for a single. Slugging percentage has been around at least since I was a kid, and there was a regular column for SLG in the stat charts listed in the Detroit News every Sunday. The problems with SLG are that a triple isn’t really three times as valuable as a single, and a base on balls is treated like it never even happened. If you want to "just knock em in," that’s fine, but a triple doesn’t put three guys on base to knock in. They have to get on base or you can’t knock em in.
These six drills are designed to generate more power for hitters across the games of softball and baseball. Working on a good path to the ball and through the zone is immediately one of the most important factors in driving the ball. Once that is worked, then can work on several drills to improve hip and lower half rotation, then work into weight transfer from the back leg through the zone, and put it all together with the crossover drill. For more drills to improve power for softball hitters, check out the hitting drills in The Hitting Vault.
For small numbers of at-bats, it is possible (though unlikely) for a player's on-base percentage to be lower than his batting average (H/AB). This happens when a player has almost no walks or times hit by pitch, with a higher number of sacrifice flies (e.g. if a player has 2 hits in 6 at-bats plus a sacrifice fly, his batting average would be .333, but his on-base percentage would be .286). The player who experienced this phenomenon with the most number of at-bats over a full season was Ernie Bowman. In 1963, with over 125 at-bats, Bowman had a batting average of .184 and an on-base percentage of .181
First of all, what is on base percentage?  In the simplest terms, on base percentage (OBP) calculates how many times a batter reaches base excluding instances such as fielder’s choice and errors.  This means, unlike with batting average, walks are calculated into the equation.  Walks are an important part of baseball.  The more walks you accumulate the more times you’re on base.  This means added run scoring potential as well as stolen base opportunities, both of which are standard scoring categories in basic 5×5 leagues.  In fantasy, we count those runs and stolen bases regardless of who that person reached base, so why should the batter get credit for how he got on base as well?
The human ability to estimate trajectories of moving objects is difficult to explain. Good fielders begin their movement just as the ball is hit, without wasting even half a step. An outfielder instantly begins running toward the spot where he thinks the ball will fall. Sometimes, he will make a running catch without losing a stride, thrusting his glove into position at the last second.
The second number in a slash line represents on base percentage. This is calculated by dividing the total times a player gets on base (hits, walks, and hit-by-pitch) by a player’s total number of eligible at bats, essentially all trips to the plate minus events outside of the batters control, like reaching on error and hitting into a fielder’s choice). These “eligible at bats” are calculated by adding regular at bats with the total number of times walked, hit-by-pitch, and hit into a sacrifice fly. That gives you the following formula to calculate on-base percentage, or OBP for short.