I was lucky enough to be present to watch UT pitcher Adrian Alaniz pitch a no-hitter against the hated Sooners back in 2005.
It was really incredible watching the tension ratchet up inning after inning and then throw after throw. He had 6 Ks total and one walk in the 6th on a 3-2 pitch, which was the only baserunner allowed on for the entire game. He retired the final 15 in order.
Watching a no-hitter is amazing by itself, and when it's against your hated rival, it's even better. What a year that was, of course it ended up in Augie's second baseball NC at Texas.