LONDON, Great Britain - A chilled-out CoCo Vandeweghe is comfortable on grass - and her perfect record at Wimbledon so far this year, without a single set dropped, proves that.
The American secured a straight-sets win over Tatjana Maria, coming through 6-4, 6-2, but she insisted it was a tough contest.
"Tatjana is a very tricky player," the 25-year-old told reporters afterwards. "She constantly is putting pressure on you, whether it's to make a pass or continue a point through. She's very fast. She makes it very difficult, and constantly tests your nerve to be able to come up with the goods."
Vandeweghe also beat her first-round opponent Mona Barthel in straight sets, 7-5, 6-2, and she says she is feeling more at ease on grass as she settles into the tournament.
"Second match you're feeling a lot calmer about your choices in play," she said, adding that she was particularly pleased with her improved serve as well as her volleys.
She has a packed schedule at the Championships, pairing up with Jelena Jankovic for the doubles competition - and she admits that it's unlikely she will get chance to enjoy herself too much on rest day, Middle Sunday.
"I don't have any plans," she admitted. "Usually there's a practice involved, but it's pretty chill. This year I got invited to a Sunday party, but I doubt I'll be able to go. I usually end up missing out on all these fun things to do and have to go work, actually.
"It will be pretty chill - probably come out here [to Wimbledon] after waking up at 11:30 - nothing too stressful!"