Kershaw's Strikeout:Walk Dominance

Clayton Kershaw has been especially dominant so far this year and last night reached 100 strikeouts with only 5 walks, the fewest walks with 100 strikeouts in the modern (i.e., post-1900) era. Wow!

Kershaw's career has been historically dominant so far.

Note: The use of 'modern' is a hedge, simply because Major League Baseball record-keeping was much sketchier before 1900. It's not that we know another player did this, but basically that people don't know and are being cautious about the phrasing.