DraftKings is offering a $300 bonus bet promotion for first-time bettors who wager $5 and win on Thursday night matchups. The promotion is available for the Celtics-Knicks, Heat-Raptors, and White Sox-Royals games. The offer is a testament to DraftKings' commitment to making sports betting more accessible and enjoyable for all. The Celtics have been one of the most dominant teams in the NBA this season, boasting a strong squad with a mix of veteran leaders and young talent. The promotion has added an extra layer of excitement to the games, with fans eagerly anticipating the possibility of receiving $300 in bonus bets.