Well, to be fair, in the context of a Versus match, it would count as being down long enough for a TKO/win for his opponent.
Question though. What's Ed's top speed like? I know vampires are super fast, and he is exceptionally fast even for a vamp, but are we ever given a solid reference just how fast? Wondering how he compares to one of Hawkeye's arrows.
In combat he and Felix were blurring around in bursts. And Edward had been starving himself for quite a while so he was nowhere near 100% during that fight. In fact, he should be too fast for Loki to hit.