Katarina Srebotnik became a professional WTA player in 1998. Staying strictly with doubles since 2010, the Slovinian reached a career-high singles ranking of world No. 20 and was the best in the world in doubles in July 2011.

The 40-year-old won four singles titles on the WTA Tour, but her best results have come from doubles, where she won 39 titles including the 2011 Wimbledon title. Even after all these accomplishments, Srebotnik is still receiving awards this late in her career, including a Guinness World Record.

"The fact that I did not know this information shows that I was never overwhelmed by my results. For me my career was fine as it was, I simply focused on playing tennis, that's how the results ended up coming in," Srebotnik said after receiving the award.

According to the WTA, Srebotnik is “the first male or female to win the first main-draw tournament entered in all three disciplines of the sport.” This includes singles, doubles, and mixed doubles.

Winning Makarska's doubles title in 1998, Estoril singles in 1999 and Roland Garros mixed doubles in 1999 led her to history.