‘S-HERTOGENBOSCH, Netherlands – No.6 seeded American CoCo Vandeweghe scored another win in her happiest of hunting grounds, having little trouble against Indy de Vroome in her 6-2, 6-4 opening round win at the Ricoh Open.

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There’s something about playing on grass that causes Vandeweghe’s powerful game to click together. Right here in the Netherlands, Vandeweghe brought home her first WTA title back in 2014, and last year she reached her first Grand Slam quarterfinals at Wimbledon.

Vandeweghe hardly needed more than an hour and fifteen minutes to reach the second round against Dutch wildcard de Vroome. The 20-year-old showed a lot of promise against the American; perhaps surprisingly, de Vroome out-aced the big serving Vandeweghe with eight aces to one. But Vandeweghe played more consistently in the important points, grabbing three of the four break chances she created.

Another American notched a victory today, with Madison Brengle scoring a big win against No.5 seed Laura Siegemund. Playing at the Ricoh Open for the first time, Brengle completed a three set upset against Stuttgart finalist Siegemund, coming back from a mid-match deficit to win 6-3, 3-6, 6-2 in just over two hours.

Siegemund wasn’t the only seed that took a tumble today with No.7 Eugenie Bouchard bowing out in straight sets at the hands of Belgian qualifier Elise Mertens. Mertens allowed the Canadian only one break point chance in the whole match and ran roughshod over Bouchard on her way to her 52-minute, 6-2, 6-0 victory, her first WTA main draw win of her career.

The grass is always greener! On to the second round ricohopen ?? https://t.co/36RVMvv4U6

— CoCo Vandeweghe (@CoCoVandey) June 6, 2016