WAR Calculator - Wins Above Replacement

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Position players use the batting-runs method; pitchers use the FIP-based method.
Weighted Runs Above Average from batting. Measures how many more runs above league-average an batter contributes via the plate, park-adjusted. Use wRAA from FanGraphs or a similar source.
runs
Combined baserunning value: UBR (base advancement) + wSB (stolen bases) + wGDP (grounded-into-double-play avoidance). Available from FanGraphs player pages.
runs
Defensive value above average. FanGraphs uses Ultimate Zone Rating (UZR); Baseball Reference uses Defensive Runs Saved (DRS). Either can be entered here.
runs
Position determines the positional adjustment (see reference table). Harder defensive positions receive a positive bonus; easier spots receive a deduction.
Games played at the listed position, used to prorate the positional adjustment. For a full 162-game season use 162.
G
A small correction that balances total league-wide WAR to the expected total (typically between -2 and +2 runs). Set to 0 if unknown.
runs
Runs added simply by playing at all, rather than a replacement-level player. FanGraphs allocates roughly 20 runs per 600 PA (full season). Prorate for a partial year.
runs
Converts run value to wins. The formula is 9 x (lgR/lgIP) x 1.5 + 3; it typically falls between 9 and 10. Use 9.5 when the exact value is unavailable.
R/W
WARAll-Star
4.9

Wins Above Replacement

Positional adjustment6.48runs
Total runs above replacement46.48runs
4.9 WAR
Below Replacement<0Role Player0-2Solid/Good2-4All-Star4-6Superstar/MVP6+

WAR: 4.9 - All-Star.

  • Total runs above replacement: 46.5, divided by runs-per-win to give WAR.
  • Batting contributes 15.0 runs (32% of the total), the largest single component for most hitters.
  • Playing SS adds a +6.5-run positional adjustment for 140 games.
  • Fielding runs: +3.0, indicating above-average defense.
  • Baserunning adds +2.0 runs above average.
  • Replacement runs (20.0) account for the value earned simply by being a regular starter rather than a freely available bench player.

Next stepThis is a solid rotation or lineup piece. Pairing WAR with wRC+ and defensive metrics gives a fuller evaluation.

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