The athletes competing on Saturday's historic UFC 300 pay-per-view event officially weigh-in on Friday morning in Las Vegas.  The fight fighter is expected to step on the scales at Noon ET.

The event takes place at T-Mobile Arena and is headlined by two world title bouts. The middleweight title is on the line in the fight card's main event between champion Alex Pereira and former titleholder Jamahal Hill.  Hill tipped the scales at 205 pounds.   

In the co-main event, women's flyweight champion Zhang Weili puts her title on the line against Yan Xiaonan.  Both women officially weighed in at 115 pounds.

Also on the fight card, lightweight contender Justin Gaethje puts the symbolic "BMF" belt up against former featherweight champion Max Holloway.  Both men officially weighed in at 156 pounds. 

UFC 300 Weigh-In Video

UFC 300 Official Weigh-In Results

Main Card: (ESPN+ PPV, 10:00 p.m. ET)

• Alex Pereira (205) vs. Jamahal Hill (205)

• Zhang Weili (115) vs. Yan Xiaonan (115)

• Justin Gaethje (156) vs. Max Holloway (156)

• Charles Oliveira (156) vs. Arman Tsarukyan (156)

• Bo Nickal (186) vs. Cody Brundage (186)

Preliminary Card: (ESPN+, 8:00 p.m. ET)

• Jiří Procházka (206) vs. Aleksandar Rakić (206)

• Calvin Kattar (145.5) vs. Aljamain Sterling (146)

• Holly Holm (136) vs. Kayla Harrison (136)

• Sodiq Yusuff (146) vs. Diego Lopes (146)

Early Preliminary Card (UFC Fight Pass, 6:00 p.m. ET)

• Jalin Turner (155.5) vs. Renato Moicano (156)

• Jéssica Andrade (116) vs. Marina Rodriguez (116)

• Bobby Green (156) vs. Jim Miller (155.5)

• Deiveson Figueiredo (135.5) vs. Cody Garbrandt (136)