We talk about small sample sizes frequently here on DRaysBay, so here are the points at which certain statistics become reliable: Offense Statistics: * 50 PA: Swing% * 100 PA: Contact Rate * 150 PA: Strikeout Rate, Line Drive Rate, Pitches/PA * 200 PA: Walk Rate, Ground Ball Rate, GB/FB * 250 PA: Fly Ball Rate * 300 PA: Home Run Rate, HR/FB * 500 PA: OBP, SLG, OPS, 1B Rate, Popup Rate * 550 PA: ISO Pitching Statistics: * 150 BF - K/PA, grounder rate, line drive rate * 200 BF - flyball rate, GB/FB * 500 BF - K/BB, pop up rate * 550 BF - BB/PA