Stuff+ is a relatively new baseball stat. FanGraphs tracks its version back to 2020, and the stat “looks only at the physical characteristics of a pitch.” That includes things like velocity, arm angle and release point, spin rate and spin direction, and movement. It is on a scale similar to OPS+ or wRC+, where 100 is average, 101 is 1% better than average, and 99 is 1% worse than average, etc. It is also a stat that the New York Mets excelled in during 2025, and a number the franchise’s front office seems to place significant importance on.
NY Mets seem to put heavy importance one pitching stat
