Answered January 12th, 2020

Corey Kluber threw in 2 games when pitching at least 6 innings and allowing 1 or fewer run in the 2016 World Series.

who was the most recent pitcher to have at least two games with 6 innings pitched and 1 or fewer runs in a season in a world series
Interpreted as:
Who was the most recent pitcher to have at least two games with 6 or more innings pitched and 1 or fewer runs in a season in a world series?

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