Riviera Country Club, Pacific Palisades, California
Round one of the 2019 Genesis Open began on schedule at 6:40 a.m. PT before weather caused a suspension of play at 7:30 a.m. PT
Following the suspension of play, the weather rapidly deteriorated and officials announced that play would remain suspended until at least 1 p.m. PT.
Officials also announced that when play resumes, all first-round scores will be reset. 10 groups had begun the first round at the time of the suspension. The last time a round was reset on the PGA TOUR was at the 2013 Dell Technologies Championship (third round).