So, when you're playing baseball, you're trying to score more runs than the other team by hitting a ball with a bat and running around the four bases on the field. It's pretty straightforward, but the twist is that each team gets a chance to bat and field, and they switch roles after three outs. That's where the idea of innings comes in - each team gets a chance to bat and field, and that's considered one inning.
The reasoning behind the 9 innings is rooted in the early days of baseball. Back then, games were often played until one team was ahead after a certain number of rounds, kind of like a best-of series. But as the game evolved, the 9-inning format became the standard, likely due to the influence of English rounders and cricket, which also had multiple innings.