The US Open champion had a 36 - hole total of 10 - under par 132 .
The US Open champion could jump from number three in the world to number one with a long - sought victory at Riviera Country Club .
The US Open champion , who could jump from number three in the world to number one with a long - sought victory at Riviera Country Club , had a 36 - hole total of 10 - under par 132 .