How Baseball Is Rigged For Lefties livescience.com 07 July 2008
In the general public, about 10 percent of people are left-handed. In Major League Baseball, about 25 percent of players are lefties. Any serious fan knows some of the reasons why certain positions favor lefties, but David Peters has come up with a laundry list of reasons to explain this anomaly.
Why Are Some People Ambidextrous? lifeslittlemysteries.com 02 April 2010
It is generally understood that there are four variations of handedness. There are people who are right-handed, left-handed, mixed-handed (when people prefer using their left hand for some tasks and their right for others), and people who are truly ambidextrous.
According to a study that was published in the January issue of Pediatrics, approximately one –in-100 people are ambidextrous, meaning they can use either hand for various (but not necessarily all) tasks with ease.
Lefty hitters can produce extra runs in youth baseball
In youth baseball, the left-handed hitters often have a better chance of hitting and getting on base than their fellow righties. After a few games into the season, our two left-handed hitters had half of the hits for the entire team (9-10yo). Balls hit by lefties to right field were being fielded by the inexperienced outfielders who delayed in throwing the ball in, so a single would turn into a double or triple. The team was producing three more runs per game than the competition.