Karrie Webb has less than a month to regain a spot in the Australian Olympic team after she was dramatically overtaken by a young woman whom she has mentored today.
Su Oh, the 20-year-old from Melbourne, leapt 22 spots in the women's Rolex Rankings after her tied-eighth finish in the Women's PGA Championship, the LPGA Tour's second major of the season, near Seattle.
For the first time ever, Oh at world No. 40 is ahead of Webb at No. 53. Perth's Minjee Lee, at world No. 13, is safe in the two-person team for Rio de Janeiro in August when golf returns to the Olympics for the first time since 2004.
The 41-year-old Webb has said for several years now that she would continue playing on the main tour at least until the Olympics, which was a major target for her as well as a potential point where she could scale back her tournament play.
As a torch-bearer at the 2000 Sydney Olympics, a strong patriot and a lover of all sports, Webb would be terribly disappointed to miss out, particularly after she was inside the rankings since they became public.
But Oh, who began the season with only limited starts on the LPGA Tour after a disappointing rookie season in America in 2015, has kept performing.
Oh and Lee, also 20, were members of an Australian amateur team which won the women's team world title in 2014 and also were members of the Karrie Webb Scholarship squad while they were in Golf Australia's elite amateur system.
They are still both members of Golf Australia's rookie squad of young professionals.
Lee has won twice on the LPGA Tour and established herself as one of the best players in the world, while Oh won the Australian Ladies Masters.
Sixty players will compete in the women's section of the Olympics with a maximum of two players from each nation other than if a player is ranked top 15, in which a nation can have a maximum of four players.
In Australia's case, the maximum will be two players and the young superstars currently hold the cards. The cut-off date is July 11; the top two on that date will go to Rio.