UFC 200: Tate vs. Nunes was a mixed martial arts event produced by the Ultimate Fighting Championship held on July 9, 2016, at the T-Mobile Arena on the Las Vegas Strip in Paradise, Nevada.

A welterweight rematch between The Ultimate Fighter 5 winner and former lightweight title challenger Nate Diaz and the then current UFC Featherweight Champion Conor McGregor was originally expected to headline the event.

UFC President Dana White clarified that McGregor's removal was related to his refusal to come to a press conference that week, because "he was in Iceland training and didn't want to ruin his preparation for the fight".

[14] Subsequent to that victory, Jones was stripped of the title and suspended indefinitely from the UFC in connection with a hit-and-run incident that he was involved in.

[16] Their rematch was originally expected to take place at UFC 197, but Cormier pulled out three weeks before the event due to injury and was replaced by Ovince Saint Preux, in what became an interim title bout.

[18] The event suffered another major hit only three days before it happened, as it was announced that Jones was pulled out by USADA due to a potential Anti-Doping Policy violation stemming from an out-of-competition sample collection on June 16.

[22] Due to those major changes, the already scheduled UFC Women's Bantamweight Championship bout between then champion Miesha Tate and top contender Amanda Nunes was revealed as the new main event.

[22] Lesnar also headlined UFC 100 and with Jones' absence, he and Jim Miller remained as the only two fighters to compete at both milestone events.

[31] The featured bout of the preliminary card was a women's bantamweight contest between former title challenger Cat Zingano and The Ultimate Fighter: Team Rousey vs.

He was not given a second attempt to make the weight because the recently introduced early weigh-in procedures set a 10:00 a.m. cut-off time and Hendricks weighed in at the last possible moment.

[45] ^ Johny Hendricks was fined 20 percent of his purse ($20,000) for failing to make the required weight for his fight with Kelvin Gastelum.

[55] Lesnar was eventually suspended by the NSAC on December 15 for a period of one year, retroactive to the date of the event and his win was overturned to a no contest.

[56] On July 18, the NSAC confirmed the substances for which Jones tested positive: hydroxy-clomiphene, an anti-estrogenic agent and letrozole metabolite, an aromatase inhibitor.

A temporary suspension placed on Jones' Nevada fight license was subsequently extended by a unanimous vote, while a formal hearing was expected for September or October.