Cricket pitch
From Tardis Wiki, the free Doctor Who reference
A cricket pitch was the place where cricket was played. Because it was comprised mostly of grass and dirt, it was mistakenly called a "field" by those unfamiliar with the game. However, as the Fifth Doctor once corrected Erimem after being shown round the TARDIS' version for the first time, it was definitely a pitch, not a field. (BFA: No Place Like Home)
Behind the scenes
Technically, the pitch is just that part of the overall playing surfac between the two sets of stumps. It's therefore, roughly, the place where the bowling, batting, and scoring occurs. It's very rough analogue in baseball is the diamond. But this point hasn't been made clear in Doctor Who-related fiction.
