The latter came in at 115.5 pounds for the fight, while her fellow strawweight contender VanZant did the same.
In the co-headliner, perennial lighweight contender Jim Miller will throw down with Michael Chiesa, and they came in at 155.5 and 156 respectively.
Here are the complete weigh-in results for Thursday’s UFC Fight Night 80 card. The event will take place at the The Chelsea at The Cosmopolitan.
Main Card (UFC Fight Pass, 10 PM/ET)
Rose Namajunas (115.5) vs. Paige VanZant (115.5)
Michael Chiesa (156) vs. Jim Miller (155.5)
Sage Northcutt (155.5) vs. Cody Pfister (156)
Thiago Santos (185) vs. Elias Theodorou (185)
Preliminary Card (UFC Fight Pass, 6:45 PM/ET)
John Howard (170) vs. Tim Means (170)
Omari Akhmedov (170) vs. Sergio Moraes (171)
Kevin Casey (185) vs. Antonio Carlos Junior (185)
Johnny Eduardo (135) vs. Aljamain Sterling (135.6)
Santiago Ponzinibbio (170) vs. Andreas Stahl (171)
Nathan Coy (170) vs. Danny Roberts (169.5)
Phillipe Nover (145) vs. Zubaira Tukhugov (145)
Kailin Curran (115) vs. Emily Kagan (115)