Ben Popescu

Base running metrics measure a player's impact on run advancement, focusing on decisions and speed while excluding stolen bases and double-play outcomes for more accurate evaluation.

Walk percentage, or BB%, measures the frequency a hitter reaches base via walks, reflecting plate discipline and on-base skills crucial for performance analysis in baseball.

wGIDP measures a hitter's impact on runs by grounding into double plays, accounting for opportunities and run expectancy, offering insights into a player's situational value.

wOBA quantifies a hitter's offensive contributions by assigning run values to various events, providing a more accurate measurement of effectiveness than traditional batting metrics.

wRAA measures a hitter's offensive contribution by comparing their weighted on-base average to league averages, quantifying runs added or lost relative to average performance.

Weighted Runs Created quantifies a baseball player's offensive contribution in terms of runs, adjusting for league averages and ballpark effects to provide accurate performance insights.

wRC+ is an advanced batting metric that quantifies a hitter's offensive value, normalizing results to league average and facilitating player comparisons across different eras and ballparks.

wSBRA quantifies a player's contribution to runs via stolen bases, comparing their performance to league averages for accurate evaluations in fantasy and player analysis.

WHIP is a crucial metric for evaluating pitchers, measuring baserunners allowed per inning through the ratio of walks and hits to innings pitched.

WPA measures the impact of a player's action on a team's winning chances, calculated by the difference in win probability before and after a play.