Going to syndicate winners of Launch Hackathon to my AngelList syndicate

I'm hosting our second hackathon (http://hackathon.launch.co) in three weeks in SF. Last year's winner was accepted to YC and invested.

This year we're going to invest $50k in each of the two winners and then syndicate to my angellist syndicate (which is now $775k) if the founders want to do that.

any thoughts/questions?