LOS ANGELES (AP) — Sam Burns respects Riviera enough not to take too many chances. His patient approach led to a 5-under 66, a five-shot lead and a place in the record book at the Genesis Invitational. He was at 12-under 130, tying the lowest 36-hole score at this PGA Tour event off Sunset Boulevard. It was last set by Mike Weir and Shigeki Maruyama back in 2004. Dustin Johnson did enough right in the afternoon for a 67. That put him five shots behind along with Joaquin Niemann, Jason Kokrak and Tyler McCumber. Jordan Spieth shot a 68 and was another shot back.
