. If he was the guy who was awake then how did he get from the scene of the car crash to the baseball stadium and back in less than 2 minutes?
. Why would he tell people that he didn't have a flashfoward? Isn't the more logical thing to do lie and say that you did have a flashfoward?
Here's the thing, we don't know how far away the stadium was from where he crashed, plus, Mark (main guy) actually saw him quite a bit after the blackout. And saying he didn't have a flashfoward in a way makes more sense because he can make a big deal and obsess over it, which would make people think he really didn't see anything. This is working so far on Mark. Another thing is the way the camera looks at him during unnecessary times and shows him being a little bit nervous and shifty is kind of a director's way of foreshadowing.
Now, on the other hand, a simple way of explaining why he didn't see anything is this. After the pilot, there was a preview of whats to come and it showed his fiance telling him that she saw their wedding. An easy and unexciting explanation is that he just fainted from being nervous at his wedding, and that is why he didnt see anything lol