In December 2017, Chalawan won the Rajadamnern Stadium 118lb title. Last night, he fought to defend the belt against Wirachai Sit. Kong Siam.
He put Wirachai down for an eight count with an uppercut in the third round. The fight continued for less than thirty seconds before he then landed a heavy left hook to the body, winning by knockout.
Here are some highlights from the fight, from the Muay Siam News Facebook page: