Here is a full list of the thirteen fighters who became UFC champions whilst still undefeated in their professional MMA careers, in chronological order.
Last update: June 1st, 2021.
|Date fighter became UFC champion||UFC Champion||Record at start of title reign|
|Feb 7, 1997||Mark Coleman||6-0|
|Dec 21, 1997||Randy Couture||4-0|
|Feb 28, 2003||Tim Sylvia||15-0|
|Dec 27, 2008||Rashad Evans||13-0-1|
|May 23, 2009||Lyoto Machida||15-0|
|Oct 23, 2010||Cain Velasquez||9-0|
|Dec 6, 2012||Ronda Rousey||6-0|
|Jul 6, 2013||Chris Weidman||10-0|
|Mar 14, 2015||Joanna Jędrzejczyk||9-0|
|Nov 15, 2015||Holly Holm||10-0|
|Dec 30, 2016||Cody Garbrandt||11-0|
|Apr 7, 2018||Khabib Nurmagomedov||26-0|
|Oct 6, 2019||Israel Adesanya||18-0|