It's been a forgettable summer for Cibulkova, who lost her opener in three of her four North American hardcourt events going into the US Open. And though she lost in the first round of the US Open last year, she has been as far as the quarterfinals here and had her best Grand Slam showing with a run to the final of this year's Australian Open.
Bellis was granted a wildcard into the US Open by virtue of winning the USTA Girls' 18s National Championship. She went into her first WTA-level match ranked 1208 and had never faced a Top 100 player in her brief ITF Women's Circuit experience.
The Turning Point
After splitting the first two sets, Bellis went down a break at 3-1 in the third set but managed to knot the set at 3-3 and went on to a 6-1, 4-6, 6-4 triumph that saw her break serve six times.
By The Numbers
The youngest Grand Slam main draw participant since Alizé Cornet at Roland Garros in 2005, Bellis became the youngest player to win a US Open match since Anna Kournikova in 1996. She also is the youngest American to win a US Open match since Mary Joe Fernandez in 1986.
"I went into the match thinking it was going to be such a great experience, but I never thought I would come out on top," Bellis said.
"I feel amazing. I'm still speechless and am in shock about that match. I went in thinking I was going to play as well as I could possibly play. I obviously played pretty well. So I'm really happy."