The victory was his seventh without a loss.
Moonwalk In Paris finished third as the race went in 1:39.97 over the Meydan Racecourse all-weather track.
Soft Falling Rain, a South African-bred 3-year-old by National Assembly, started his career in his homeland without a loss in four tries, then won two earlier trials at Meydan during the World Cup Carnival. Paul Hanagan had the mount for trainer Mike de Kock.
Facing 15 rivals, Hanagan established Soft Falling Rain in mid-pack early in the race, outside of rivals and out of trouble. He began to move toward the leaders on the far outside as the field hit the straight and wore down the leader with a relentless advance.
A French runner, Sarkiyla, finished fourth.