The first UFC trilogy began in 1997 and ended in 2004, with two victories for the North American and one for the Brazilian.
One of the greatest rivalries in the history of MMA was marked as the first time that a fighter won all the fights in a trilogy, when Ortiz defeated Shamrock on three occasions.
Matt Hughes didn't do well in the trilogies. Against BJ Penn, the former champion also got the worst of it and ended up defeated on two occasions.
Stout and Fisher made the first trilogy in which none of the fighters involved won or even challenged for the UFC belt. Better for Stout, who won two fights.
Before reaching the UFC belt, Charles faced Nik Lentz three times. There were two victories for the Brazilian and one unsuccessful fight in a trilogy that began in 2011 and ended in 2019.
The last heavyweight trilogy was starred by Stipe Miocic and Daniel Cormier. Better for Miocic, who recovered from the defeat in the first meeting and won the last two.