And it gives 13.9. Now the lens focuses wide open and the comment was in the AF usage sense, so at F5.6 you get about EV+.3 more for focus.
My comment about it being dark was not about focus just about getting a decent image of a fast moving subject, IF the goal was to freeze action completely. That might not have been the object of course.
But I'm also curious about the EV +11, as I don't think in "EV" so was not at all sure of my number.