All 26 fighters made weight on Thursday for Friday's loaded Invicta FC 5 event.
The card at the Ameristar Casino in Kansas City, Mo., features a pair of title Invicta title fights, as well as a main card featuring the company debuts of two former Strikeforce champions and a former Bellator titleholder.
In the main event, Huntington Beach, Calif.'s Jessica Penne makes the first defense of her atomweight title, against Jackson's MMA fighter "Karate Hottie" Michelle Waterson. Penne weighed in at 104.9, Waterson 104.7.
Invicta will also crown its first flyweight champion on Friday night. Vanessa Porto (15-5) faces off against Miletich Fighting Systems' Barb Honchack (7-2). Porto came in at 124.8, Honchak at 124.6.
Cristiane "Cyborg" Santos made weight for her first fight in 16 months. The former Strikeforce featherweight champ, who sat out a year suspension due to a failed steroid test, checked in at 144.8 for her bout with Australian Fiona Muxlow (143.8).
In other bouts featuring former titleholders, ex-Strikeforce bantamweight champ Sarah Kaufman (124.8) will meet Cesar Gracie fighter Leslie Smith (134.9); and former Bellator strawweight champ Zoila Frausto Gurgel (125.5), now fighting at flyweight, meets Jennifer Maia (124.5).
Complete weigh-in results:
Jessica Penne (104.9) vs. Michelle Waterson (104.7)
Vanessa Porto (124.8) vs. Barb Honchak (124.6)
Cristiane "Cyborg" Santos (144.8) vs. Fiona Muxlow (143.8)
Sarah Kaufman (135.5) vs. Leslie Smith (134.9)
Zoila Frausto Gurgel (125.5) vs. Jennifer Maia (124.5)
Kaitlin Young (135.6) vs. Lauren Taylor (134.9)
Julia Budd (145.8) vs. Mollie Estes (144.4)
Bec Hyatt (115.4) vs. Jasminka Cive (115)
Jessamyn Duke (135.6) vs. Miriam Nakamoto (135.8)
Katja Kankaanpaa (115.3) vs. Juliana Carnerio Lima (115.4)
Alex Chambers (103.8) vs. Jodie Esquibel (105)
Rose Namajunas (115.6) vs. Kathina Catron (115.8)
Simona Soukupova (104.6) vs. Cassie Rodish (104.6)