On December 28, 2021, Gregory A. Carlin notified the Executive Chairman of Rush Street Interactive, Inc. (the “Company”) of his resignation as a member of the Board of Directors of the Company (the “Board”), and from any other offices, committees or positions that he holds, effective as of December 28, 2021. Mr. Carlin’s decision was not the result of any disagreement with the Board or the Company on any matter relating to its operations, policies or practices.