UFC 91: Couture vs. Lesnar è un evento di MMA del 15 novembre 2008. Si tiene a MGM Grand Garden Arena, Las Vegas, Nevada, U.S.. Qui trovi la card completa con i risultati degli incontri.
| Categoria | Incontro | Esito |
|---|---|---|
| Main card (PPV) | ||
| Heavyweight | Brock Lesnar vs Randy Couture (c) | TKO (punches) R2 3:07 |
| Lightweight | Kenny Florian vs Joe Stevenson | Submission (rear-naked choke) R1 4:03 |
| Welterweight | Dustin Hazelett vs Tamdan McCrory | Submission (armbar) R1 3:59 |
| Heavyweight | Gabriel Gonzaga vs Josh Hendricks | TKO (punches) R1 1:01 |
| Middleweight | Demian Maia vs Nate Quarry | Submission (rear-naked choke) R1 2:13 |
| Preliminary card | ||
| Lightweight | Aaron Riley vs Jorge Gurgel | Decision (unanimous) (29–28, 29–28, 29–28) R3 5:00 |
| Lightweight | Jeremy Stephens vs Rafael dos Anjos | KO (punches) R3 0:39 |
| Lightweight | Mark Bocek vs Alvin Robinson | Submission (rear-naked choke) R3 3:16 |
| Welterweight | Matt Brown vs Ryan Thomas | Submission (armbar) R2 0:57 |