One of the main reasons for positing a v layer separate from V is the behavior of ditransitive verbs. In particular, all the objects of a ditransitive verb seem to form a constituent of their own, separate from the verb: I gave (the books to Alice) and (the papers to Bob).
This can be explained if we assume that V selects all its objects, and then a separate v selects the subject, and finally V moves to the position of v (head movement). Then we can say that the objects are all inside the VP, forming a constituent, and the verb appears outside it (at the position of v).
That's presumably what's happening here. The verb ganado is generated at V position, and then moved to v (or copied and then the original is deleted if you prefer). The lower copy should have a strikethrough to indicate this, and I'm guessing it's just an error that it's not. Certainly we don't see two copies of the word ganado on the surface.