Ponsana played badminton at the 2004 Summer Olympics, defeating Miho Tanaka of Japan in the first round but losing to Gong Ruina of China in the round of 16. In 2008, she was defeated in the second round by Zhang Ning of China with the score 23–21, 17–21, 7–21.[2] Ponsana also competed at the Asian Games in 2002, 2006, and 2010, and won the 2010 women's team silver medal. At the Southeast Asian Games, she has collected 3 gold, 3 silver, and 3 bronze medals from 2001 to 2011. Ponsana graduated with a bachelor's degree in law from Sripatum University, and she is studying there to earn her master's in Management. She then represented her country and university to compete at the 2007 Universiade. At that games, she won a gold in team event and a bronze in mixed doubles event.[3]