In honor of worldtennisday and tournament tickets going on sale March 8th, we will be counting down the Top 20 Greatest Moments in BB&T Atlanta Open History. Here's #18: #18. In 2011, teenager #RyanHarrison reached first ATP semifinal in Atlanta. The 19-year old American upset #XavierMalisse and #RajeevRam before falling to eventual champ, #MardyFish . This performance shot Harrison into the top 100 for the first time.