With just two days remaining until the second annual Noche UFC event, the weigh-ins are the final hurdle before the fights are made official. The pay-per-view event consists of just 10 fights, meaning only 20 fighters will hit the scales on Sept. 13.The official weigh-ins will begin at noon ET. / 4 p.m. GMT on Sept. 13 with each relevant fighter having two hours to weigh in. The event will conclude at 2 p.m. ET / 6 p.m. GMT unless all fighters hit their contracted mark before that time. View this post on Instagram Instagram PostNoche UFC 306 will be headlined by bantamweight champion 'Sugar' Sean O'Malley in his second title defense against No. 1 contender Merab Dvalishvili with the lone promotional Mexican champion Alexa Grasso also defending her title against Valentina Shevchenko in the co-main event. In total, eight fighters will be representing Mexico on the night, not including Diego Lopes, who is of Brazilian descent but currently resides in Jalisco.The event weigh-ins will be supplemented by the traditional UFC weigh-in show live from the UFC YouTube channel. The ceremonial weigh-ins will follow at 10 p.m. ET / 2 a.m. GMT on Sept. 13 live-streamed on the UFC website, YouTube channel and social media pages.Watch the UFC 306 weigh-ins on Sept. 13 from MMA Junkie on YouTube below:Noche UFC 306 fight cardView the full Noche UFC 306 fight card lineup below:Main card (10 p.m. ET / 2 a.m. GMT on ESPN+ PPV)(C) Sean O'Malley vs. Merab Dvalishvili, for the UFC bantamweight title(C) Alexa Grasso vs. Valentina Shevchenko, for the UFC women's flyweight titleBrian Ortega vs. Diego Lopes, featherweightDaniel Zellhuber vs. Esteban Ribovics, lightweightOde' Osbourne vs. Ronaldo Rodriguez, flyweightPrelims (8 p.m. ET / midnight GMT on ESPNews and ESPN+)Irene Aldana vs. Norma Dumont, women's bantamweightIgnacio Bahamondes vs. Manuel Torres, lightweightYazmin Jauregui vs. Ketlen Souza, women's strawweightEdgar Chairez vs. Joshua Van, flyweightEarly prelims (7:30 p.m. ET / 11:30 p.m. GMT on UFC Fight Pass and ESPN+)Raul Rosas Jr. vs. Aori Qileng, bantamweight