Thursday night brings a packed sports slate, and DraftKings is rolling out a major welcome offer for new users. Place your first $5 bet, and if it wins, you'll receive $300 in bonus bets to use on NBA, MLB, and more. It's a perfect chance to add some extra stakes to a night featuring pivotal matchups across the league.

The action tips off with a heavyweight Eastern Conference clash as the Boston Celtics visit the New York Knicks. The Celtics have been on a tear, winning four straight and 11 of their last 13, looking every bit like the championship contender they were built to be. Despite being on the road, Boston's recent form and a strong 4-1 record in New York over the past two seasons make them a compelling underdog play at +145 odds, according to some expert models.

Meanwhile, the Miami Heat head north to face the Toronto Raptors, who are favored by 4.5 points. Over in the MLB, the Kansas City Royals and Chicago White Sox face off in an American Central showdown. Analysts suggest combining these three picks into a parlay could yield a massive +625 payout.

Whether you're backing a surging contender or looking for value on the road, this DraftKings promotion lets you kickstart your action with significant bonus capital. Just remember, a winning $5 first bet unlocks the full $300 in bonus bets, turning a small wager into major potential for the games ahead.