RELIEVERS: Using Leverage Index
Apr 16 2013
This week, this column looks at early returns on Leverage Index in a few pens. Leverage Index (LI) was developed by Tom Tango and measures the amount of swing in the possible change in win probability indexed against an average value of 1.00. So relievers who come into games in various situations create a composite score around 1.00. If the average score for a reliever is above 1.00, then that reliever's manager is showing greater confidence in them to win games than those with an average score below 1.00.
LI is a fantastic tool for many reasons. One is to see a developing usage pattern for particular relievers in a given pen. For example, some pens will have a left-hander who often faces left-handed batters with large numbers of...
Almost!
You’re just a few clicks away from accessing this feature and hundreds more throughout the year that have a singular goal in mind: Winning your league. Subscribe to BaseballHQ.com here!
Already a subscriber? Sign in here
More From Relief Pitchers
This column examines the RPs who have at least a 20% K%-BB%, no more than a 1.0 HR/9, and no more than a 3.50 xERA as of July 1.
Jul 5 2026 3:09am
Jul 5 2026 3:09am
Returning closers and ineffective closers--this column has both and what to expect.
Jun 28 2026 3:07am
Jun 28 2026 3:07am
This column gets away from closers and looks at relievers who are being used in leverage by their teams. They are divided into groups by current xERA.
Jun 21 2026 3:07am
Jun 21 2026 3:07am
A look at skills in four more unsettled pens.
Jun 14 2026 3:05am
Jun 14 2026 3:05am
Here are your K%-BB% leaders and what you might expect going into the rest of June.
Jun 7 2026 3:11am
Jun 7 2026 3:11am
