SAN JOSE, California, Oct 13, 2012 (AFP) - Blixt closed with a three-under par 68, collecting $900,000 in prize money and becoming the third rookie to win on the US tour this season.
"It's unbelievable," Blixt said. "This is the biggest dream I ever had. The greatest two weeks."
Blixt broke through Sunday after coming close this season with three top-10 finishes. He finished third last week at the Shriners Hospitals for Children Open and tied for third at the Byron Nelson Championship.
The native of Nassjo, Smaland, carded his fourth round in the 60s to finish with a 16-under 268 total on the CordeValle golf course.
Americans Tim Petrovic and Jason Kokrak tied for second. Petrovic shot a 64 and Kokrak had a 68.
Third-round leader John Mallinger had a 72 to tie for fourth at 14-under 270 with US compatriot Jimmy Walker, Fiji's Vijay Singh and Alexandre Rocha of Brazil. Walker closed with a 62 and Singh and Rocha shot 68.
Blixt ranks third on the tour in strokes gained putting and managed to recover from a poor approach shot on 18 Sunday by two-putting for the victory.
Petrovic made birdie on the 17th to get to 15-under. He two-putted for par at the last.
Kokrak joined him as a runner-up after he eagled the driveable par-four 17th to gain a share of the lead. He also parred the 18th hole.
Walker, who started on the back nine, shot a course record-tying 62 to vault into a share of fourth place.
Last year's winner, Bryce Molder, carded a two-under 69 to tie for 11th on 273.
Leading scores on Sunday after the fourth round of the $5 million Frys.com Open (par-71, USA unless noted):
268 - Jona Blixt (SWE) 66-68-66-68
269 - Jason Kokrak 68-66-67-68, Tim Petrovic 70-68-67-64
270 - John Mallinger 66-62-70-72, Alexandre Rocha (BRA) 69-67-66-68, Vijay Singh (FIJ) 70-66-66-68, Jimmy Walker 73-68-67-62
271 - Jeff Overton 68-69-68-66
272 - Russell Knox (SCO) 70-68-65-69, Gary Woodland 66-72-66-68
273 - Martin Flores 71-67-68-67, Charles Howell 66-69-66-72, Zack Miller 70-69-66-68, Bryce Molder 71-67-66-69, Patrick Reed 73-67-70-63
274 - Steven Bowditch (AUS) 71-64-71-68, Scott Dunlap 70-63-70-71, Ernie Els (RSA) 71-68-69-66, Danny Lee (NZL) 69-67-67-71, Jeff Maggert 67-71-67-69, Chez Reavie 73-65-68-68