HARRISON, N.Y. -- An impressive streak for world No. 1 Lydia Ko ended Friday in the second round of the KPMG Women's PGA Championship.
Shooting one of the worst rounds of her professional career, a 3-over-par 76 at Westchester Country Club, Ko missed her first cut on the LPGA Tour after qualifying for the weekend 53 consecutive times as an amateur and pro.
The 18-year-old New Zealander, who has two LPGA Tour victories in 2015 and seven in her career, ballooned to a four-over 40 on her second nine Friday to finish 36 holes at two-over 148 and miss the cut by one stroke.
"I made a double and just couldn't get anything turned around," Ko said of a 6 on her 11th hole of the round, which was followed by three bogeys over the next four holes.
Ko birdied her 17th hole.
"It was already kind of too late."
Ko's performance came on the heels of lackluster finishes in her three most recent tournaments, in which she tied for 41st, 16th and 27th after winning the Swinging Skirts LPGA Classic in April. Ko tied for 51st in the year's first major, the ANA Inspiration.