Emma Talley needed just 17 holes Thursday to advance out of the Round of 32 in championship match play at the U.S. Women's Amateur being played at the Nassau Country Club in Glen Clove, New York.
But she failed in her attempt to defend her 2013 title by falling in the Round 16 to Su-Hyun Oh.
Talley, a Princeton native and University of Alabama golfer, made it to the Round of 16 by dispatching Princess Mary Superal 3&1 in the Round of 32.
But Oh ended Talley's championship-repeat bid by winning the Round of 16 quarterfinal match 9&8.
In the win over Superal, Talley led 1 up after the first three holes. Superal made it all square on No. 4 before Talley went back ahead 1 up on the fifth hole. Superal tied it again on No. 6 and then went 1 up after winning No. 7 and No 8.
Talley made it all square on No. 9, went 1 up on No. 10 and maintained that lead through No 12. She went ahead 2 up at No. 13 and held that through the 16th hole.
Talley then took a 3 up lead and claimed the match at No. 17.
In the loss to Oh, the two golfers squared No. 1.
But Oh birdied every hole after, while Talley parred on each, in allowing Oh to build her 9 up advantage by hole No. 10.