FIP
Fielding Independent Pitching -- a metric that estimates ERA based only on outcomes the pitcher controls: strikeouts, walks, hit batters, and home runs.
Like judging a salesperson by their own calls made, not the team's total revenue.
Why it matters
FIP strips out defense and luck, revealing a pitcher's true skill level. A big ERA-FIP gap suggests regression is coming.
How DMP uses this
DMP factors in FIP for pitcher evaluation when assessing game environments and expected run scoring.
Common mistake
Ignoring FIP when it diverges from ERA -- a 3.00 ERA with 4.50 FIP means the pitcher is due for correction.