Chankrachangwong competed in badminton at the 2004 Summer Olympics in women's doubles with partner Saralee Thungthongkam. They defeated Denyse Julien and Anna Rice of Canada in the first round and Chikako Nakayama and Keiko Yoshimoti of Japan in the second. In the quarterfinals, Chankrachangwong and Thungthongkam lost to Zhang Jiewen and Yang Wei of China 15-2, 15-4.
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