UFC 13: The Ultimate Force è l’evento del 30/05/1997
- Lightweight Finals
- Weight class Method Round Time Notes
- Lightweight Guy Mezger vince su Tito Ortiz Submission (guillotine choke) 3:00
- Lightweight Semifinals
- Lightweight Guy Mezger vince su Christophe Leininger Decision (unanimous) 15:00
- Lightweight Enson Inoue vince su Royce Alger Submission (armbar) 1:36
- Lightweight Alternate bout
- Lightweight Tito Ortiz vince su Wes Albritton TKO (corner stoppage) 0:31
- Heavyweight Finals
- Weight class Method Round Time Notes
- Heavyweight Randy Couture vince su Steven Graham TKO (punches) 3:13
- Heavyweight Semifinals
- Heavyweight Steven Graham vince su Dmitri Stepanov Submission (armlock) 1:30
- Heavyweight Randy Couture vince su Tony Halme Submission (rear-naked choke) 1:00
- Heavyweight Alternate bout
- Heavyweight Jack Nilson vince su Saeed Hosseini TKO (punches) 1:23
- Heavyweight bout
- Heavyweight Vitor Belfort vince su Tank Abbott TKO (punches) 0:52