Question

How many pitchers pitched in the tournament?

Answer 1

5 pitchers hope this helps

Answer 2

5 pitchers

Explanation:

As you can see, there is data for 5 different pitchers (each listed separately on the x / horizontal axis)

So, there are 5 pitchers--regardless of how many innings they each pitched (unless one of them theoretically pitched 0 innings, but that is not the case)