Year	Competition	Venue	Position	Event	Notes
Representing Thailand	Representing Thailand	Representing Thailand	Representing Thailand	Representing Thailand	Representing Thailand
2006	Asian Junior Championships	Macau, China	8th	110 m hurdles (99 cm)	14.58
2007	Asian Indoor Games	Macau, China	9th (h)	60 m hurdles	8.17
2008	Asian Junior Championships	Jakarta, Indonesia	6th	110 m hurdles (99 cm)	14.09
2009	Asian Championships	Guangzhou, China	6th	110 m hurdles	14.07
2009	Asian Indoor Games	Hanoi, Vietnam	5th	60 m hurdles	7.88
2009	Southeast Asian Games	Vientiane, Laos	1st	110 m hurdles	13.89
2010	Asian Games	Guangzhou, China	6th	110 m hurdles	13.81
2011	Asian Championships	Kobe, Japan	4th	110 m hurdles	13.96
2011	Southeast Asian Games	Palembang, Indonesia	1st	110 m hurdles	13.77
2013	Asian Championships	Pune, India	5th	110 m hurdles	14.07
2013	World Championships	Moscow, Russia	31st (h)	110 m hurdles	14.71
2013	Southeast Asian Games	Naypyidaw, Myanmar	1st	110 m hurdles	13.72
2014	Asian Games	Incheon, South Korea	3rd	110 m hurdles	13.61
2015	Asian Championships	Wuhan, China	4th	110 m hurdles	13.77
2015	Southeast Asian Games	Singapore	1st	110 m hurdles	13.69
2015	World Championships	Beijing, China	35th (h)	110m hurdles	14.00