tonight, 12 teams will go head-to-head in the nfl's preseason kick off but the real winner is jason robinse ceo of draft kings, one of the fastest businesses in fantasy sports. jason joins us live from where the action is. jason, great to speak with you again. >> thank you, thank you for having me. >> how much is a preseason kick off mean to you in revenues and/or fan engagement? >> well, the preseason is really just the hype coming into the regular season of the nfl, which is our biggest growth period every year. really the time when we add the most new customers and run the biggest games and have the most exciting prizes. >> how big are the prizes because that's a big cost for your business giving away the money and advertising. so what sorts of prizes are we talking about? >> our biggest contest going in week one is a $10 million contest, it's $20 to enter. top prize is $2 million. second prize is $1 million. $500,000 to third and so on and so forth and that will be kicking off on september 13th, week one of the nfl season. >> how do you measure your return on investment on that sort of