NEW YORK (AP) - Miesha Tate announced her retirement inside the octagon following a loss to Raquel Pennington at UFC 205.

The 30-year-old Tate says the loss played a role in her decision. She says: "I had a lot more to give but I couldn't pull it out of myself."

Tate defeated Holly Holm in March to win the bantamweight title and then lost the belt in her first title defense to Amanda Nunes in July.

Tate (18-7) had coached Pennington on "The Ultimate Fighter," a reality show used by the UFC to recruit new talent.

Pennington won a methodical bout and unanimous decision on Saturday night, with only one judge awarding Tate a round. It was the first of two women's bouts on the main UFC 205 card.

The Madison Square Garden crowd gave Tate a loud ovation following her surprise announcement.