As the ball bounced down the terraced seating behind the right-field wall at Lupton Stadium, Colin Simpson rounded the bases.
The Oklahoma State baseball team edged Texas Christian University 7-6 on Saturday in Fort Worth, Texas.
The Cowboys (17-8 overall, 4-1 Big 12) hit five home runs, but the Horned Frogs had none.
Although TCU had a 6-5 advantage in the top of the ninth inning, Simpson, a senior catcher/outfielder, led off with his home run to reach a tie.