The 1973 Astro-Bluebonnet Bowl, part of the 1973 bowl game season, took place on December 29, 1973, at the Houston Astrodome in Houston, Texas. The competing teams were the Tulane Green Wave and Houston Cougars, with each competing as a football independent. Houston won the game 47–7.

Teams Houston

The 1973 Houston squad finished the regular season with a 10–1 record with its lone loss coming against Auburn. The 10–1 record was the best recorded in the school's history to that point. The appearance marked the third for Houston in the Astro-Bluebonnet Bowl, and their fifth overall bowl game.

Tulane

The 1973 Tulane squad finished the regular season with a 9–2 record with losses coming against Kentucky and Maryland. Prior to victory over Vanderbilt, the Green Wave accepted an invitation to play in the Astro-Bluebonnet Bowl. The appearance marked the first for Tulane in the Astro-Bluebonnet Bowl, and their fifth overall bowl game.

Game summary Houston - Marshall Johnson 75 run (Ricky Terrell kick), 12:13 remaining in the 1st quarter Houston – Leonard Parker 1-yard touchdown run (Ricky Terrell kick), 8:41 remaining in the 2nd quarter Houston – Leonard Parker 3-yard touchdown run (Ricky Terrell kick), 1:24 remaining in the 2nd quarter Tulane – Tom Fortner 32-yard touchdown pass from Buddy Gilbert (David Falgoust kick), 1:06 remaining in the 2nd quarter Houston – Nobles 2-yard touchdown run (Ricky Terrell kick), 6:42 remaining in the 3rd quarter Houston – Donnie McGraw 1-yard touchdown run (Ricky Terrell kick), 5:28 remaining in the 3rd quarter Houston – Donnie McGraw 32-yard touchdown run (kick failed), 13:41 remaining in the 4th quarter Houston – David Husmann 7-yard touchdown run (kick failed), 6:53 remaining in the 4th quarter

Statistics Statistics Houston Tulane First downs 26 10 Yards rushing 402 102 Yards passing 253 71 Total yards 655 153Punts-Average 3-43.3 9-39.2Fumbles-Lost 6-4 2-1Interceptions Thrown 1 4Penalties-Yards 5-55 4-26

Aftermath Beginning in 1996, the Green Wave and Cougars became conference rivals when Conference USA began play in football (the conference began play in basketball and other sports during the 1995–96 school year). Both schools moved to the American Athletic Conference in 2014, with the Cougars eventually moving to the Big 12 Conference in 2023.

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