Left Early on a Caught Fly

[Eastshire]

It doesn't necessarily follow from just what you posted that a catch isn't a play.

"If the throw is the first play" doesn't mean that only throws are plays. For example, if F4 tries to tag R1 and then wings it into the first base stands, the throw is the second play. It could be possible that a catch would be like a tag.

We still haven't found explicit proof one way or the other. It's not listed as a play but it's not listed as not a play either.