RC

Runs Created -- Invented by Bill James, there are now numerous variations. James' most basic definition is:

RCb = Basic Runs Created = OBP * SLG * AB, or RCb = OBP * TB

His more advanced formula is:

RC = A * B /C

where

A = H + BB + HB - CS – GDP

B = TB + .52 * (SB + SH + SF) + .26 * (BB + HB - IBB)

C = AB + BB + HB + SH + SF

A quick and dirty alternate formula is:

RC = [(H + BB) * TB] / (AB + BB)

See the Wiki page for further details.