When I last wrote about run scoring in late May, the early returns were a little mixed. Thanks in part to a relatively strong April for MLB hitters, the decline in MLB run scoring had stabilized, and even ticked up a little bit. That did not hold up this season, and MLB run scoring continued to decline:
So what is happening? We know that the decline can't be blamed on increasing use of specialized bullpens. Batted ball types haven't changed much:
Strikeout rates, on the other hand, have ballooned:
That strikeout trend is pretty insane. But it should also be noted that MLB BB% tied its record low in 2014.