Step onto the top step of the dugout. Calibrate pitching matchups, execute defensive shifts, command pitch sequences, and witness late-inning Win Probability swings in real time.
Created by Tom Tango, Leverage Index quantifies how critical a game moment is compared to average (LI = 1.0). An LI above 3.0 represents a game-deciding turning point where a single pitch or misaligned infielder can swing the outcome by over 40% win expectancy.
With runners at 3rd with fewer than 2 outs, managers face the eternal tradeoff: Infield In prevents the go-ahead run at home on routine grounders (+18% chance of out at plate), but inflates the hitter's batting average on balls in play (BABIP) by over 60 points through widened holes.
A high-velocity sinker induced ground ball rate jumps 22% against same-handed hitters when pitched down-and-in. When pitching backward with two strikes (elevated 4-seam after horizontal sweepers), whiff probability reaches peak efficiency against free-swingers.