Anyone in NJ that uses DraftKings would already know this, but just got an email about it, figured I'd share..
Between 6/19 and 7/3, for every $400 you bet on MLB games, you get a $200 free bet. Can claim this offer up to 10 times, for $2000 in free bets.
Bets require -300 minimum (no favorite higher than -300).
Odds Boost bets do not count.
Not too bad if you wager decent money.