In the wake of Ryan Howard reaching 100 RBI for a Phillies-record sixth consecutive season, SABR's Dan Heisman points out that Howard is close to another very lofty milestone.
If Howard can knock in 17 more runs by the end of the season, he would become just the seventh major leaguer ever to total 800 RBI over a six-year span. And what a list he would join:
Note: Most of the players above had more than one such stretch; we've listed just their highest six-year total.