Samingdet Bangmadklongtan faced Duangsompong Jitmuangnon in a Muay Thai lightweight contest at Rajadamnern Stadium on Saturday, 15 August 2026. The bout was contested for the Interim Rajadamnern Stadium Lightweight Championship as part of the RWS Muay Thai: Samingdet vs Duangsompong event.
Samingdet Bangmadklongtan won by unanimous decision after five rounds.