Hits allowed per nine innings

From BR Bullpen

Hits allowed per nine innings
Abbreviations H/9, H/9IP
Type Pitching
Components hits allowed, innings pitched
Formula
H / 9 IP = (H * 9) / IP

Hits allowed per nine innings pitched (H/9IP or H/9) is a statistic measuring the average number of base hits by a pitcher in nine innings pitched. Nolan Ryan has the lowest ratio in history, at 6.5553 H/9 IP.