If he were to win the Frys.com Open, he would have a two-year exemption on the PGA Tour.
"There's no pressure. Just enjoying it right now," Koepka said. "Looking forward to the weekend. I don't see any pressure. Yeah, it would be big. Obviously be nice to win and get status over here. But you play good, everything kind of takes care of itself."
It has so far not just the last two days, but all year.
Koepka, who make eight birdies and an eagle, was at 11-under 131.
Robert Garrigus (63) and Jim Herman (66) were two shots behind, while Camilo Villegas shot 66 and was another shot behind at 8-under 134. Kevin Tway, son of former PGA champion Bob Tway, had a 65 and was at 135. Lurking five shots behind were the Japanese duo of Hideki Matsuyama (66) and Ryo Ishikawa (67).
Koepka picked a good week to display his length and skill. He made most of his birdies with a wedge in his hand, and picked up two more birdies on the par 5s by missing eagle attempts from about 12 feet.
He was at the same course at Q-school where Jordan Spieth failed to advance. Spieth started out on the Web.com Tour, did well enough in his PGA Tour starts to get some money and momentum, and wound up with a win, a PGA Tour card, a trip to the Tour Championship and a spot on the Presidents Cup team.
Koepka, missing the amateur credentials and sponsor exemptions of Spieth, went a different direction.
South Africa. Switzerland. Kenya. Kazakhstan.
Much like the European Tour, its developmental circuit goes all over the world. Like the time in Kenya that his driver turned a 15-minute trip into over three hours, stopping on side streets along the way and making Koepka more nervous than he has been behind the wheel of his luxury courtesy car at CordeValle this week.
Sure, he thought about how much more comfortable it would have been to try a Web.com Tour schedule mainly in America. But he wouldn't trade the experience.
"You're traveling the world at 23," Koepka said. "That's good. And it's a good experience playing overseas. I think you'll see a lot more guys doing it. ... I think everybody wants to be a worldwide player. At least for me, that's what I want to be able to do play the European Tour and the PGA Tour. I just need to get established over here a little bit more."
The tournament is only halfway over, though Koepka is surely helped by having won four times in the last year on the Challenge Tour in Europe.
Herman also is on good form, though he can be excused if this doesn't feel like a PGA Tour opener. His offseason was one week. Herman played well late in the year but still didn't make it to the FedEx Cup playoffs. He played four of five weeks in the Web.com Tour Finals to earn his card back, and one week later, he was at CordeValle putting up rounds of 67-66 to assure himself a late tee time Saturday.
The low round Friday came from Andres Gonzalez, who also could use a big week.
Gonzalez thought he had his card wrapped up at the Web.com Tour Championship until Lee Williams made a 55-foot birdie putt on the last hole, and Andrew Loupe made a 5-foot par putt right behind him to knock Gonzalez out. He's only in the Frys.com Open because he finished in the top 10 in the previous PGA Tour event in August.
Gonzalez shot a 62 and was five shots out of the lead.