 Muangthong United has rivalries with Buriram United, Port, Chonburi, against whom they contest the Thailand Clasico, and TOT SC, against whom they contest the Chaeng Watthana derby.The rivalry with Port is rooted in Kor Royal Cup stampede when Port was forfeited due to crowd riots in 2009.In 2014 Muangthong United fans and Port fans were riot with armed rebellion at Udon Ratthaya Expressway in Pak Kret Expressway area so that police and military were come out to fix the problem .