Chavez was a great, and my all-time #2 favourite fighter, but he did lose his 12th fight, so he should not really count...

Non Chavez; Jofre/Caraballo 99 fights

Kim/Benvenuti 89 fights

Trinidad/Campos 79 fights

Zarate/Zamora 75 fights (74 by TKO/KO)

Holmes/SpinksI 75 fights

Oliva/Brunette 69 fights

Robinson/ServoI 68 fights

Foreman/FrazierI 66 fights

Tyson/Tucker 65 fights

Holmes/Cooney 64 fights

Campos/Turner 64 fights