UFC 78: Validation è l’evento del 17/11/2007.
- Main card (PPV)
- Weight class Method Round Time Notes
- Light Heavyweight Rashad Evans vince su Michael Bisping Decision (split) (29–28, 28–29, 29–28) 3 5:00
- Light Heavyweight Thiago Silva vince su Houston Alexander TKO (punches) 1 3:25
- Welterweight Karo Parisyan vince su Ryo Chonan Decision (unanimous) (30–27, 30–27, 30–27) 3 5:00
- Middleweight Ed Herman vince su Joe Doerksen KO (punch) 3 0:39
- Lightweight Frankie Edgar vince su Spencer Fisher Decision (unanimous) (30–27, 30–27, 30–26) 3 5:00
- Preliminary card
- Welterweight Thiago Alves vince su Chris Lytle TKO (doctor stoppage) 2 5:00
- Lightweight Joe Lauzon vince su Jason Reinhardt Submission (rear-naked choke) 1 1:14
- Lightweight Marcus Aurélio vince su Luke Caudillo TKO (punches) 1 4:29
- Welterweight Akihiro Gono vince su Tamdan McCrory Submission (armbar) 2 3:19