While we are debating this, I must weigh in. The Chapin player seems to check back when he realizes he is in an offsides position and then drifts back into the offsides position when the ball 'seems' to be played (you cannot tell due to camera angle). The BC player enters pretty late and it looks like he's coming from up the field, not to the side. Also, you can see the BC players raising their hands asking for the offsides. I wish we could see when the ball was actually played, but based on this I think that the player is offside.
