Question: What is the name of the rivalry game that is played in the same stadium as the State Fair Classic, thats name is derived from the river that forms part of the boundary between Texas and Oklahoma?

The State Fair Classic (known as the Southwest Airlines State Fair Classic for sponsorship purposes) is an annual college football game between the Grambling State University Tigers and the Prairie View A&M University Panthers of the Southwestern Athletic Conference.  The game often occurs the weekend before the Oklahoma–Texas Red River Showdown game; the new Texas State Fair Football Showdown is also scheduled to take place on the third weekends of the 2018 and 2019 fairs and will feature Southern and Texas Southern.  The game is played on a neutral site at the Cotton Bowl in Fair Park, Dallas, Texas during the State Fair of Texas. <SEP>  The participants are the Oklahoma Sooners football team of the University of Oklahoma and the Texas Longhorns football team of the University of Texas at Austin.  The game is played the week following the State Fair Classic featuring Prairie View A&M University and Grambling State University.  The series is one of the major rivalries in NCAA football and in all of American sports. The Red River Showdown, commonly called the Red River Rivalry, the Red River Classic, or the Red River Shootout, is an American college football rivalry game played annually at the Cotton Bowl stadium in Dallas, Texas, during the second weekend of the State Fair of Texas in October.  The name is derived from the Red River that forms part of the boundary between Texas and Oklahoma that has in the past caused conflict between the two states, most notably the 1931 Red River Bridge War. <SEP> The Sabine Shoe is the name of the bronze shoe trophy that was awarded to the winner of the annual football game between the Louisiana–Lafayette Ragin' Cajuns (formerly the Southwestern Louisiana Bulldogs) and the Lamar Cardinals.  The first Sabine Shoe trophy was awarded in 1937 to the winner of the SLI–Lamar football game.  The name of the bronze rivalry trophy was derived from the Sabine River that forms part of the Texas–Louisiana border.  USL defeated Lamar in the 1978 edition of the rivalry game, but the Ragin' Cajuns were not awarded the trophy as it had vanished.  The Sabine Shoe trophy now sits in at trophy case in the Ragin' Cajun Athletic Complex in Lafayette, Louisiana.  The two teams have met 34 times on the football field, with the Ragin' Cajuns currently holding a 23–11 edge in the all time series.  The game has been infrequently played following the Ragin' Cajuns departure from the Southland Conference in football.  Following the 1981 season, the conference was one of several forced to reclassify from NCAA's Division I-A to Division I-AA.  The Ragin' Cajuns, a member of Division I-A since 1978, met the NCAA requirements to remain a Division I-A member and chose to continue participation in that sub-division. <SEP> The Red River State Fair Classic (formerly the State Fair Classic and, more recently, the Shreveport Classic) is an American college football game played annually in Shreveport, Louisiana, at Independence Stadium (formerly State Fair Stadium) during the State Fair of Louisiana.  It traces its historical lineage from a series of 160 games played over the 106 football seasons between 1911 and 2016.  By having first paired historically black colleges and universities in 1922, the contest holds the distinction of being the oldest annual black college football classic, edging out the Turkey Day Classic by two years and the similar Texas State Fair Classic by three years.  Also, so far, the earliest documented use of the term "classic" as part of an annual black college football game's formal name has been dated to the 1927 Louisiana State Fair Classic.