PIT is pitches thrown or pitch count.
It means the % of fouls there are in a game
Left on base.
There is no standard stat with the abbreviation of FA.
"R" is for runs scored which means the number of times a player crosses home plate.
an at bat
relief (Pit)cher strike outs I have never seen KO used in baseball. K is typically used for pitching stats meaning Strikeout. KO is an abbreviation used in boxing meaning Knock out
Assists i think
Either hits or homeruns
youre out from hitting