Sepp Straka shot an 8-under 64 on Saturday while his top competitors failed to match his sizzling pace, staking the Austrian to a four-shot lead over Charley Hoffman, Jason Day and Justin Lower after three rounds at The American Express.

I think that was the biggest challenge today was keeping aggressive on my targets,” Straka said after his two-under 70. “Nerves, just complete nerves. Stomach in a knot, the whole nine. So, yeah, just really excited about the way I handed the pressure today.

Straka’s round at La Quinta in many ways was the reverse of what might have been expected. Playing the back nine first, Straka made six birdies on the way to a 30, the kind of score generally associated with the front nine at the course that opened in 1959.