One of the rare feats where a current Mr O was defeated....how many times has this happened? Not many!
Six times:
Schwarzenegger def. Oliva - 1970
Schwarzenegger def. Zane - 1980
Haney def. Bannout - 1984
Cutler def. Coleman - 2006
Jackson def. Cutler - 2008
Cutler def. Jackson - 2009