1. What is Pitcher WAR?

WAR (Wins Above Replacement) is a comprehensive statistic that attempts to measure a pitcher's total value to their team by comparing them to a replacement-level player. It accounts for both pitching and fielding performance.

2. How Does the Calculator Work?

The calculator uses the FIP-based WAR formula:

Where:

• Innings Pitched — Total innings pitched by the player
• League FIP — Fielding Independent Pitching for the league
• Pitcher FIP — Player's Fielding Independent Pitching
• Runs Per Win — Typically around 9-10 runs per win
• Replacement Level — Usually about 0.03 runs per inning

Explanation: The formula converts runs saved (through better pitching) into wins, then adds a replacement level adjustment.

3. Importance of WAR Calculation

Details: WAR provides a single number that represents a player's total contribution, making it valuable for comparing players across positions and eras.

4. Using the Calculator

Tips: Enter all required values. League FIP is typically around 4.00-4.50. Runs per win is usually about 9-10. Replacement level is often set at 0.03 runs per inning.

5. Frequently Asked Questions (FAQ)

Q1: What's a good WAR value for a pitcher?
A: 0-1 WAR is replacement level, 2-3 is solid starter, 4-5 is All-Star level, 6+ is MVP candidate.

Q2: How does this differ from bWAR or fWAR?
A: This is a simplified version. bWAR uses RA9 while fWAR uses FIP. Both have additional adjustments.

Q3: Why use FIP instead of ERA?
A: FIP focuses only on outcomes the pitcher can control (K, BB, HR) and removes defensive effects.

Q4: How accurate is WAR?
A: It's an estimate with about ±0.5 WAR margin of error. Best used for broad comparisons rather than small differences.

Q5: Can WAR be negative?
A: Yes, negative WAR means the player performed worse than a typical replacement player.