You can use the bonus money on sports wagers as long as the wagers have odds of -200 or greater. Greater means moving towards the positive side.
You can use your bonus on these odds: -200, -110, 115, 250
You cannot use your bonus on these odds: -201, -250, -500
Please note that wager will not count towards the play-through requirement until the bet settles. (Does not matter if you win or lose the bet)