However, on March 24, 2006, Shaughnessy beat No. 3 seed Justine Henin 7–5, 6–4 in the second round of the NASDAQ-100 Open in Miami. She then won a WTA-level event in Rabat, beating eighth seeded Martina Suchá in three sets. It was her fourth tour title. She became the first American to win a WTA-level title as well as the first to reach a WTA final in 2006. Shaughnessy afterwards reached the second round at Istanbul, beating third seeded Anna Chakvetadze in the first round. She then fell in the first round in the French Open to top-seeded Amélie Mauresmo, 4–6, 4–6.
