Thavoncharoen represented
Thailand at the 2008 Summer Olympics in
Beijing. She competed at the
100 metres sprint and placed sixth in her heat without advancing to the second round. She ran the distance in a time of 11.82 seconds. Together with
Sangwan Jaksunin,
Orranut Klomdee and
Nongnuch Sanrat she also took part in the
4 × 100 metres relay. In their first round heat they placed fifth in a time of 44.38 seconds was the eleventh time overall out of sixteen participating nations. With this result they failed to qualify for the final. ==Achievements==