CHARLESTON, S.C. (AP) American Madison Keys powered into the finals of the Family Circle Cup with a 6-1, 6-4 victory over Lucie Hradecka on Saturday.
The 20-year-old Keys displayed serves clocked as high as 124 mph in taking a quick lead on Hradecka, a qualifier from the Czech Republic playing her seventh match in eight days.
Keys had seven aces and hasn't dropped a service game in the tournament. She'll face either defending champion Andrea Petkovic or No. 5 seed Angelique Kerber in Sunday's championship.
Petkovic and Kerber, good friends and fellow Germans, play later Saturday.
Keys' only WTA title came at Eastbourne in 2014. She hadn't made it past the Family Circle quarterfinals in two previous appearances. Keys has lost just 14 games in four matches this week.