The margin of victory equalled the AFC Cup record, first registered by Uzbekistan's Nasaf Qarshi who beat India's Dempo in a group stage tie in 2011.
Ceres made their early dominance count by taking the lead on the quarter-hour mark when Mike Ott’s cut-back eventually found its way to Takumi Uesato to finish from close range, before Spaniard Bienvenido Maranon made it two soon after with a header from just a yard out.
With the rain coming down heavily, the floodgates had now well and truly opened as Uesato added his second by tapping in Jeffrey Christiaens’ cross and Maranon then dinked home a penalty after the lively Mike Ott was brought down by Touch Pancharong.
OJ Porteria bent in a fifth with the outside of his right foot just after the half hour and, after a period of relative calm, Sub Sovanrithy headed Patrick Reichelt’s cross from the right into his own net as the hour approached.
Captain Carli de Murga headed in a seventh from Manuel Ott’s cross, before the provider turned scorer when his shot from distance found the bottom corner. Porteria then rounded off the scoring with his second to bring a miserable evening for Boeungket to an end.