hitting

PA: plate appearances
AB: at bats
R: runs
H: hits
1B: singles
2B: doubles
3B: triples
HR: home runs
RBI: runs batted in
BB: walks
Kc: strike out called
Ks: strike out swinging
SB: stolen bases
CS: caught stealing
AVG: batting average
OBP: on base %
SLG: slugging %

fielding

PO: put outs
A: assists
Et: throwing error
Ef: fielding error
ERR: errors
%FP: fielding percentage

pitching

G: games
W: wins
L: losses
IP: innings pitched
BF: batters faced
ER: earned runs
ERA: earned run average
%FPS: % first pitch strike
K: strikeouts
BB: walks
K/BB: strikeouts-to-walks ratio
BAA: batting average against