Henderson among Women's Am semifinalists

Glen Cove, NY ( - Brooke Mackenzie Henderson hung on for a 1-up victory over Alison Lee on Friday to earn her place in the semifinals of the U.S. Women's Amateur Championship.

Henderson, who was the low amateur at this year's U.S. Women's Open, will be joined by Hannah O'Sullivan, Andrea Lee and Kristen Gillman.

O'Sullivan defeated Grace Na, 5 & 4, while Andrea Lee won a 2 & 1 decision over Eunjeong Seong and Gillman needed 20 holes to down Su-Hyun Oh at Nassau Country Club

Henderson and Alison Lee were all square through five holes after each won a hole before Henderson took a lead she would not lose with a par at the sixth.

The duo traded wins at the 12th and 13th, and again at the 16th and 17th to leave Henderson 1-up heading into the 18th, where Lee could not convert her birdie effort to hand Henderson a 1-up win.

Na held the early advantage against O'Sullivan with a par at the second, but she would not win another hole for the remainder of the match.

O'Sullivan evened the match with a birdie at the fourth, and then took control with three straight pars from the sixth, giving her a 3-up advantage. After moving five ahead with consecutive wins at the 12th and 13th, both players parred the 14th to hand O'Sullivan the 5 & 4 win.

Andrea Lee controlled her match against Seong from the start, winning four of the first five holes to claim a 4-up advantage.

Seong got back within two by winning consecutive holes at the eighth and ninth with pars, but could not get closer as she and Lee halved the next eight holes to give Lee the 2 & 1 victory.

Oh and Gillman were the third match to start, but the last to end as they needed extra holes to decide their tilt.

Oh held a 4-up lead when she parred the 10th before Gillman put together a late rally to square the match.

Gillman's comeback started with a birdie at the 13th and after pulling within two with a par at the 15th, she forced extra holes with back-to-back wins at the 17th and 18th.

Both players birdied their 19th hole to move on to the 20th, where Gillman rolled in a birdie to complete the comeback and earn the victory.

Oh was eliminated in the quarterfinals for the second straight year.

08/08 17:43:43 ET

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