Horse racing will return to Arlington Racecourse in 2020. The Illinois Racing Board voted unanimously today to award 68 racing dates next year at the track in Arlington Heights. The nine- to-zero vote comes a week after board members criticized track owner Churchill Downs over its decision not to seek a casino license. Regulators are voting on racing licenses for next year and to decide on 2020 racing dates. Churchill Downs has not committed to racing at Arlington beyond 2021.