The Fort Worth Stock Show and Rodeo ends its 24-day run on Sunday, but not before selling off the grand champion steer.
Blackjack, 13-year-old Callie Stedje's European Crossbred, sold for $140,000 Saturday.
Weatherford-based Happy Davis Foundation ponied up the cash.
Stedje plans to spend the money on college.
Meagan Boxwell's reserve grand champion steer was purchased by Coors Distributing Company of Fort Worth for $100,000.