ESPN put a small qualifier at the bottom of RPM — which said that the formula changed… but they never really brought it up. Terrible metric.. that was a great metric… before they changed it. This is the real creator of RPM… and even he talked about how horrible the formula and metric was…. after he left.. and they totally changed it.
https://www.reddit.com/r/nba/comments/19flcui/what_happened_to_espns_real_plus_minus/

