Player cards show two stat lines: blue for offense, green for defense. Both affect your score - don't draft on the batting line alone.
Hitters: AVG, OBP, SLG, ISO, HR, SB. Defense row shows real fielding stats from that season; if unavailable, DEF RTG fills in.
Pitchers: ERA, WHIP, IP, W-L, K, SV. Starters need volume. Closers need dominance and saves.
OBPAbove .370 is excellent. Above .400 is elite. Walks score runs, so OBP matters more than batting average alone.
ISOIsolated power (SLG - AVG). Strips out singles to measure true extra-base ability. Above .200 is above average; above .280 is elite. Relevant from any era.
FLD%Above .985 is excellent for most positions; above .995 is elite. Below .960 is a liability regardless of the bat.
ASTInfielder range - SS, 2B, 3B. High assists means covering ground and turning double plays.
POOutfield range - especially CF. A center fielder with 350+ PO is elite.
CS%Catchers only. Above 35% is elite. Shutting down the running game takes away free bases every night.
E / DPFewer errors and more double plays translate directly to outs. A SS with 20+ E is costing wins regardless of the bat.