Saturday's sports calendar is packed with action, and DraftKings is rolling out a major welcome offer to match the excitement. New users can secure $300 in bonus bets simply by placing a winning $5 wager. This is a perfect opportunity to add some extra stakes to a thrilling day of NBA and MLB matchups.

The hardwood heats up as the 2026 NBA Playoffs tip off. The evening features a compelling double-header: the Atlanta Hawks visit the New York Knicks at 6 p.m. ET, followed by the Los Angeles Lakers taking on the Houston Rockets at 8:30 p.m. ET. With playoff intensity from the opening tip, every possession will be crucial.

On the diamond, the MLB schedule is equally loaded, highlighted by a clash between the St. Louis Cardinals and Houston Astros. The Cardinals, a surprising early-season contender, look to extend a winning streak after a strong series-opening victory.

For those looking to leverage this DraftKings promotion, expert insights can help shape your strategy. SportsLine's projection model, which simulates every MLB game 10,000 times, has identified a key pick for the Cardinals-Astros game. Meanwhile, their NBA analysts are breaking down the pivotal matchups, like Hawks guard Nickeil Alexander-Walker's high-scoring performances against the Knicks this season.

Combining expert picks into a parlay could amplify potential returns, making that initial $5 bet work even harder. Remember, the core of this offer is straightforward: sign up, bet $5, and if it wins, you'll receive $300 in bonus bets to use on future wagers. It's a powerful way to kickstart your sports betting experience on a day full of can't-miss games.