My answer is the BEST ANSWER (no brag, just fact lol): The reason why most first basemen are left handed is almost all other positions in the infield besides first base makes a huge advantage of being right handed. read more
The reason why most first basemen are left handed is almost all other positions in the infield besides first base makes a huge advantage of being right handed. There have been an occasional left handed catcher years ago but usually they get moved due to baseball “traditions” of no left handed catchers. read more
Left-handed first baseman are also advantageous in attempting to pick off baserunners at first, as the left-hander can catch and tag in one motion, often doing both at the same time, while right-handed first baseman must sweep their glove across their body, costing them a crucial fraction of a second in applying the tag. read more
Point is, for all infielders EXCEPT the first baseman, the vast majority of throws are "across the body" for a right hander, which is why most second basemen, shortstops, and third basemen are right-handed. Now think about a first baseman. read more