Lauren Coughlin on top after first round of CPKC Women's Open

(Photo credit: Sergei Belski-USA TODAY Sports)

Lauren Coughlin enjoyed a run of four birdies over six holes and emerged with the first-round lead at the CPKC Women's Open on Thursday in Calgary.

Coughlin carded a 4-under-par 68 at Earl Grey Golf Club to establish a one-shot edge over Jennifer Kupcho, Thailand's Ariya Jutanugarn and Australians Hannah Green and Minjee Lee.

Alison Lee, Gigi Stoll, New Zealand's Lydia Ko a