HomeRacingDragbike RacingKings of Grudge Video Highlights, Union Dragway Dragbike Racing Kings of Grudge Video Highlights, Union Dragway Share: Facebook Video highlights from the “Kings of Grudge” at Union Dragway, South Carolina, March 15th, 2015. Share: Facebook Jack Korpela Previous ArticleHTP Performance Backs IDBL Next ArticleEric McKinney Becomes First Pro Mod Racer to Run a Three at 625 Pounds, Fourth Overall March 22, 2015