When a hitter puts the ball in play, the major league average to get a hit is only slightly above .300.  The upper tier of hitters can average around .340, which is how they manage to consistently hit above .300 year in and year out.  What this number means is that a ball hit in fair territory (many swings do not hit the ball fair) has nearly a 70% chance of being an out.  This is where the walk comes into play.  Hitters who are patient enough to work counts and take pitches are much more susceptible to walks than those who chase every first pitch.  The odds of reaching base after taking 4 balls is obviously 100%.  Essentially, hitters must be lucky in order to get a hit, while drawing a walk guarantees them to reach base.  This is why the walk is such a vital part of baseball overlooked by many. 
We’ve looked at the players with the higher batting averages, now let’s look at some of those players with low averages who were cursed at and ignored in fantasy.  We’ll start with last years whipping boy Carlos Santana and his .231 batting average.  We all loved his power and RBI numbers, but he dragged our averages down like the Titanic.  It might surprise you to know that Santana had a .365 OBP thanks in part to his 113 walks.  As a catcher we can tolerate low averages if a player hits for power, but not from someone who plays first (or third).  Using OBP though, Santana’s numbers were equal to Morneau in 3 categories and he had 10 more home runs. 
If the swing is on-plane early and the player is a little bit late on a fastball, he will still be able to hit a line-drive to the opposite field instead of either popping up or swinging and missing completely. If the bat is on-plane through the swing as well, a player that is fooled on a curveball will still be able to shoot the baseball somewhere instead of either rolling over or striking out.
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.
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To compare the performance of OBP and gOBP, we compute a weighted mean squared error (WMSE) to quantify the difference between the expected and actual statistic for the set of batter/pitcher matchups in each bin. The number of plate appearances is used to weight each bin, so that more common pairings affected the final score more than rarer ones. We collected all matchups between batters and pitchers with at least 50 total PAs in a season from 2010 through 2013, a sample of more than 750,000 PAs. The WMSE (along with the unweighted mean squared error) for both OBP and gOBP are given below.
Exactly how humans are able to estimate the expected position of a quickly moving ball is unknown. Obviously, this remarkable skill is learned through long practice. Eye-brain-body coordination is acquired only by going through the motions over and over; even so, the batter misses most of the time. Getting a hit three times out of ten at bat is considered an excellent average. It's interesting that George Schaller and other ethologists have observed that lions and cheetahs are also successful only about a third of the time in capturing their prey.

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, the batting average (BA) is defined by the number of hits divided by at bats. It is usually reported to three decimal places and pronounced as if it were multiplied by 1,000: a player with a batting average of .300 is "batting three-hundred." A point (or percentage point) is understood to be .001 . If necessary to break ties, batting averages could be taken to more than three decimal places.
Powerful Legs that are trained through various movement patterns and skill sets. For example, you create a ton of power by super setting (performing these two exercises one after the other with little rest, then repeating) an exercise like a squat and a box hop. This combination of a strength development exercise and a plyometric exercise create explosive power.
There’s a very good chance that you’ve heard these phrases at some point, “that was effortless” or “kid’s got easy power”. If you’re unfamiliar with “effortless power” you might not understand what I mean. Simply put it means that a hitter will display great power  but visually it doesn’t look like they tried to swing hard. Perhaps the more scientific way to describe and “effortless swing” would be, efficient.
We need to compare the best batting averages from 2000 — when offense was at an all-time high, thanks at least in part to the prevalence of performance-enhancing drugs in the game — with the averages of today, with pitching strong and PED testing rigorous. In 2000, 30% of all major league players with 400 plate appearances finished with a .300 batting average or better. So in 2014, if a hitter ranks in the top 30% of batting averages, why shouldn't he be considered the equivalent of a .300 hitter from 15 seasons ago?

A hit is more valuable than a walk?  Why?  Your team pays you to get on base.  Granted they want players that can hit, but they also see the advantage of the guy that can draw walks.  Sure the guy that gets a hit can drive in runs more frequently if men are on base, I can’t argue with that.  In the same respect, we don’t put an asterisk next to the runs driven in because the guy in front of you walked.  On the flip side, the guy who walks more has more opportunities to score runs, so you’re trading one category for the other. 
Follow through. Properly following through is important for multiple reasons. Not only will it help you to add all-important distance generating backspin to the ball, but it will help point out any flaws in your swing.[7] In most cases, you want your hands to finish high which ensures that the bat head stays through the hitting zone as long as possible.
Whereas with resistance bands, the force profile applies more force to your bat the further and further you swing it in front of your body– meaning, you are at maximum resistance during the follow-through of the swing. So not only does the weight affect central nervous system motor patterns, but the force profile of the bands does not positively benefit the swing either.
BAA is very common in evaluating pitchers -- especially when assessing opponent handed-ness splits. A pitcher cannot have an ERA against left-handed hitters because they are interspersed with righties in lineups. So when a pitcher's ability against hitters from each side of the plate is being compared, it is usually done by using either BAA or OPS-against.