Off sponsors for his fight with Brock Lesnar.
From Kevin Iole's article on Joe Lauzon.
"Heavyweight Frank Mir made $40,000 to show and $40,000 to win for his submission victory over Brock Lesnar at UFC 81 in Las Vegas. But Mir also made $85,000 in sponsorship deals, more than doubling his haul. Even with the $60,000 bonus Mir earned from the UFC for submission of the night, his sponsorship money still amounted to 38.9 percent of his income."
Damn, some good sponsors.