From Baseball Reference: on August 18. 1998, the Braves got nine hits against the Giants, all doubles. Will this feat ever be repeated? About 20% of hits are doubles. let’s say that for some ballparks, or some batting lineups, the chance a hit will be a double goes up to 1/4. Then you might figure the chance of nine hits all being doubles would be (1/4)^9, about one in a quarter-million. (If the chance of a double is 1 in 5, this goes down to one in two million.) From that point of view, it’s not so shocking; there have been about three hundred thousand MLB games played this century, so why not? Two problems. 1. Doubles used to be a lot less common then they are now. 2. If you hit nine doubles off a team’s pitching staff, it probably means they’re having a terrible day, and it probably means at some point you’re going to hit a home run. I think a much better way to assess whether another team’s likely to match the Braves is to check how many times a team has managed eight doubles without a hit. And nobody has. Not seven, either, or six. And just five teams have had 5 doubles in a game with no other hits. I think the Braves are safe here. And I think this is a good example of a question where just looking at the data gives you a much more robust answer than a half-assed probability calculation.