By THE HERALD-WHIG STAFF
LOS ANGELES -- Six weeks into his rookie season on the PGA Tour and Quincy native Luke Guthrie continues to find himself in the mix on the weekends.
Guthrie posted his second top-25 finish of the season and fourth top-30 finish when he fired a 1-under 70 Sunday at Riviera Country Club and wound up tied for 21st at 3-under overall in the Northern Trust Open.
Guthrie has made four cuts and currently sits 59th on the PGA Tour money list with $213,753.
John Merrick won a two-hole playoff with Charlie Beljan for his first career victory. The finished at 11-under.