 CHICAGO--BUSINESS WIRE--Rush Street Interactive, Inc. NYSE: RSI RSI, a leading online casino and sports betting company in the United States, today announced financial results for the first quarter ended March 31, 2021. First Quarter 2021 Financial Highlights Revenue was 111.8 million during the first quarter of 2021, an increase of 218, compared to 35.2 million during the first quarter of 2020. Net loss was 76 thousand during the first quarter of 2021, compared to a net loss of 12 