MLB commissioner Rob Manfred didn’t make many changes to pace-of-play for the big leagues, but more changes to Minor League Baseball will be taking place in 2018.
The biggest change is the new extra-innings rule, which institutes that starting in the 10th inning, there will be a runner at second base to begin the inning.
To be specific, the runner who will be granted second base will be the player in the batting order previous to the leadoff hitter in the inning. When it comes to pitchers and the effect it will have on their ERA, the runner at second will be deemed a runner who reached base via an error, but an error will not be charged to any player or team.
The two other big changes for pace-of-play are limiting mound visits, which is different based on a minor league level and reducing the pitch clock to 15 seconds with no runners on base at Double-A and Triple-A.