UFC on ESPN 12, also known as UFC on ESPN: Poirier vs. Hooker, UFC Vegas 4, and probably several others I can't think of will be held on Saturday, June 27, 2020 at the UFC APEX in Las Vegas, Nevada, United States.
The official weigh-ins will take place today, Friday at the event hotel, and will stream live on The UG at Noon ET. The event will have no late, ceremonial weigh-ins for the fans.
Main Card (ESPN, ESPN+ 8 p.m. ET)
Dustin Poirier (156) vs. Dan Hooker (155.5)
Mickey Gall (170) vs. Mike Perry (171)
Maurice Greene (255) vs. Gian Villante (255)
Brendan Allen (185.5) vs. Kyle Daukaus (185.5)
Tanner Boser (235) vs. Philipe Lins (234)
Julian Erosa (149.5) vs. Sean Woodson (149) for 150-pound catchweight
Prelim Card (ESPN, ESPN+ 5 p.m. ET)
Luis Pena (155) vs. Khama Worthy (154.5)
Takashi Sato (170.5) vs. Jason Witt (171)
Jinh Yu Frey (115.5) vs. Kay Hansen (115.5)
Jordan Griffin (145) vs. Youssef Zalal (145.5)