Run
Run tool — projected footspeed on the 20–80 scale.
What Run means
The most objectively measurable tool: it maps almost directly onto home-to-first times and sprint speed. Also the tool that ages out first.
What counts as a good Run
Higher is better — roughly 40 is poor, 50 average, 60 good, and 70 or better elite.
Also written
run_tool · speed_grade
Source
FanGraphs