Credit One Charleston Open Round: Three Americans were the first players to reach the WTA 500 Credit One Charleston Open Round of 16, with Madison Keys, Amanda Anisimova and defending champion Danielle Collins all booking third-round spots on Tuesday evening.
The reigning Australian Open champion Keys needed one hour and 42 minutes to defeat Caroline Dolehide 6-3, 7-6(4), finally closing out her compatriot on her eighth match-point opportunity.
Keys held her first four match points while up a set and a break at 6-3, 5-4. However, Dolehide erased those chances and two more in the following game, battling back to level footing in the second set of the power-hitting clash. Keys then needed to hold firm in the tiebreak before she at last defeated her compatriot, WTA reports.