Player Value
Pitcher WAR
Enter FIP, innings, and role. We return a FanGraphs-style pitching WAR estimate with every run on screen — no black box.
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Inputs
3.40
Fielding Independent Pitching. League average ≈ 3.90.
180
3.90
Role
Relievers get a leverage multiplier. Default 1.00 / 1.20.
Result
3.3
Average rotation piece
- Runs above avg
- +10.0
- Replacement
- +19.8
- Leverage
- 1.00
- Runs / win
- 9.0
(10.0 + 19.8) × 1.00 / 9.0 = 3.3 WAR
Methodology
This is a transparent, simplified fWAR pitching model. It starts from FIP versus league FIP, scales by innings, adds replacement value, applies a role leverage factor, and divides by runs per win.
RAA = ((lgFIP − FIP) / 9) × IP Replacement = IP × (0.11 starter | 0.08 reliever) pWAR = (RAA + Replacement) × leverage / RPW RPW = 9 + (lgFIP − 3.90)
Limits No park factor, no infield-fly adjustment, no team defense, no exact FanGraphs G/F split. Use it to build intuition and check a claim — not to replace the published leaderboard.
