Patty Sheehan, 1990 U.S. Women's Open at Atlanta Athletic Club (Golf)

With the last two rounds being played on Sunday, Sheehan took a nine-shot lead into the final 27 holes but lost to Betsy King by one stroke. Most collapses are mental, but in Sheehan’s case, the breakdown was physical. “I had no fuel on board when I went out [Sunday morning],” she said. “I started losing it. I was dehydrated. My body couldn’t work. I couldn’t think properly and I had no strength.”
Sheehan redeemed herself with victories in the 1993 and 1994 U.S. Opens. “It doesn’t hurt anymore,” she said. “Thank God I was able to win and get rid of all the demons.”