DraftKings on Thursday reported a rise in fourth-quarter revenue to $323m up 43%.

“This was a transformative year for DraftKings. We further established ourselves as a leader in the rapidly evolving digital sports and gaming industry, launched products in six new states and announced a business combination with Diamond Eagle and SBTech to become a public company,” said Jason Robins, co-founder and Chief Executive Officer of DraftKings. “I am excited to have closed out 2019, having achieved net revenue of $323M for the full year, a 43% increase over 2018.”

Upon close of the business combination, DraftKings will become the only vertically-integrated pure-play sports betting and online gaming company based in the United States.

Through the business combination, DraftKings expects to realize synergies by transitioning its risk and trading sports betting platform to SBTech’s, instead of relying on a third-party platform. In addition to reducing costs, DraftKings will control its backend system and product roadmap, differentiating the company from other U.S. operators and giving it the ability to tailor its sports betting product to U.S. sports and users.