I doubt they'll be longer. I'm fairly certain that the math will show that they'll be shorter. I agree. I'd bet that it's likelier that one team rather than both can score the new rule baserunner. Plus, some games will end when the home team's first batter drives in the winning run. This new setup should promote sac bunting, especially for the home team when the visitors couldn't score in their extra inning half. Sac bunting makes sense in a sudden death situation when there's a runner on second with no outs. I'm in a mathy mood, so I went ahead and did some calculations. According to this nice website (https://gregstoll.dyndns.org/~gregstoll/baseball/runsperinning.html), the probability of scoring a run the way adults do, with an inning that begins with none on and none out, is 26%. With none out and a runner on second, it's about 62%. Making a few simplifying assumptions, you can go from there to an average of 2.60 extra innings playing real baseball and 2.12 extra innings playing with a runner starting on second and none out. So it's a little quicker to start with a runner on second. I did not do any calculations assuming a home run derby, coach pitch, or tee ball. I have yet to hear any actual baseball fan come out in favor of this. Extra innings mean more baseball, and what baseball fan doesn't love more baseball? The problem - if there is one - is that there's less baseball per minute than there used to be, not that extra inning games go on for too long. Edgy MD wrote: The 20-second pitch clock was already established in the minors last season. They are reducing it to 15 when there are no runners on base. And they've certainly curtailed mound visit length and frequency, both at the major and minor-league levels. Aggressively and, to my thinking, counter-productively. Have those shortened games? What do the numbers show? Yeah, by about 10 minutes. https://www.milb.com/milb/news/toolshed-time-of-game-down-across-board/c-127176290