MLB Advanced Stats FAQ
Batter Advanced Stats
- AVG – Batting Average
- OBP – On Base Percentage
- SLG – Slugging Percentage
- OPS – On Base + Slugging
- K% – Strikeout Rate
- BB/K – Walk Per Strikeout
- ISO – Isolated Power
- Spd – Speed
- BABIP – Batting Average on Balls in Play
- wRC – Weighted Runs Created
- wRC+ – Weighted Runs Created Plus Per FanGraphs
- wOBA – Weighted on Base Average
Pitcher Advanced Stats
- K/9 – Strikeouts Per 9 Innings Pitched
- K% – Strikeouts Per Batter Faced
- HR/9 – Home Runs Allowed Per 9 Innings Pitched
- HR/FB – Home Run Allowed Per Fly Ball Allowed
- AVGA – Opponent Batting Average Against
- BABIP – Opponent Batting Average on Balls in Play
- wOBA – Opponent weighted on base average
- SIERA – Skill Interactive Earned Run Average
- xFIP – Fielding Independent Pitching
- GB/FB – Groundball to Flyball Ratio
- STR% – Percentage of Pitches Thrown as Strikes
- Pit/G – Pitches Thrown Per Game