In January 2009, Rousso just missed the televised six-handed WPT final table while playing at the World Poker Tour Season VII Southern Poker Championship; she finished in seventh place and earned $79,117. In the head-to-head single-elimination 2009 National Heads-Up Poker Championship tournament, Rousso made it to the finals of the 64-person field before losing to Huck Seed. Along the way to her runner-up finish, she defeated Doyle Brunson, Phil Ivey, Paul Wasicka, Daniel Negreanu, and Bertrand Grospellier. Previously, Shannon Elizabeth's 2007 semi-final appearance had been the best female finish in the annual event. The March 6–8 tournament was broadcast on NBC over six consecutive Sundays from April 12 – May 17, 2009. , her tournament winnings exceed $3,100,000. In May 2009, Rousso won the 79-entrant €25,000 EPT High Roller Championship, which had a first prize of 720,000 Euros. However, at the final table, the three final contestants elected to chop chips at €420,000 and leave €150,000 for the winner. The €570,000 win, which converts to $749,467, represents the highest payday of her career. The win propelled Rousso to sixteenth place on the 2009 earnings list as of May 5.