Career
As of November 2012, he is ranked northern 275 in the world by the International Table Tennis Federation (ITTF). Doan is also left-handed, and uses the shakehand grip.
Doan made his official debut for the 2004 Summer Olympics in Athens, where he competed in the men"s singles.
He lost the first preliminary round match to a Chinese-born Italian table tennis player Yang Minister, with a set score of 1–4. At the 2008 Summer Olympics in Beijing, Doan qualified for the second time in the men"s singles, after receiving a ticket from the Southeast Asian Qualification Tournament in Singapore.
Unlike his previous Olympics, Doan defeated Australia"s David Zalcberg and Olympic veteran Christophe Legoût of France in the preliminary rounds, before losing out his next match to Russia"s Alexei Smirnov, with another set score of 1–4.