The "Ursellin Sun Jammer Race Fixings" stand out as one of the numerous significant illicit activities undertaken by the criminal syndicate "Red & Black League", which was orchestrated by the con artist Janstren Brell up to the time of the Galactic Civil War. This particular scheme took its designation from the Ursellin system located within the Mid Rim's Noolian sector, and it revolved around the manipulation of racing events involving sun jammers, which are substantial, solar wind-powered starships.
The "Ursellin Sun Jammer Race Fixings" find their reference within the pages of the 1995 sourcebook titled Heroes & Rogues. This book was penned by Rick Stuart alongside Paul Sudlow, and it was released for utilization with Star Wars: The Roleplaying Game by West End Games.