|The opening goal|
The home side improved with Jakkaphan hitting the post and Tanasrich should have done better as the Emerald Nagas took a 1-0 lead into the break.
Both sides were reduced to ten men shortly after the rain soaked interval with Somneuk and Teeradech dismissed after the referee took a belated interest in an off the ball scuffle between the pair.
Shortly before the hour, Chawin outpaced his marker to set up Dion Marc who kept his cool to double the advantage.
Customs pushed men forward to salvage the game, but they were then susceptible to the pacy counters led by Chawin and Dion Marc.
Chawin should have made it 3-0 but he hit the post after Mbella's pacy run.
The third goal came five minutes from time when Dion Marc sprang the offside trap in the centre circle and he rounded the keeper to finish off his unattended run.
The African began showboating and was smashed in the face by Jo's elbow for his troubles. The referee was right next to the incident and astonishingly gave both players a yellow card.