Tyler Glasnow has been gradually reducing his walks this year. (Photo Credit: Tom Bragg)

Last night I noticed that Tyler Glasnow had a ridiculously low walk rate, at least for Tyler Glasnow standards. All year Glasnow has been striking out well over a batter an inning on average. Earlier in the season, he had a very high walk rate, due to his inability to repeat his delivery. As the season has gone on, the walks have dropped. After last night's start, he had a 3.06 BB/9 ratio in his last ten games, which is outstanding when you've also got a 12.31 K/9 in that same time period.

I wanted to get a look at how Glasnow was improving with his walks as the year went on. So I started with his tenth game of the season, and looked at his rolling BB/9 average for every start in his previous ten...

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