Atomweight: 96-105 lbs

Jessica Penn and Naho Sugiyama compete for the inaugural Invicta atomweight championship.
1	Jessica Penne	def.	Naho Sugiyama	Submission (triangle choke) @ 2:20 of R2	Invicta FC 3: Penne vs. Sugiyama	10.06.12
2	Michelle Waterson	def.	Jessica Penne	Submission (armbar) @ 2:31 of R4	Invicta FC 5: Penne vs. Waterson	04.05.13
		def.	Yasuko Tamada	TKO (knee & punches) @ 4:58 of R3	Invicta FC 8: Waterson vs. Tamada	09.06.14
3	Herica Tiburcio	def.	Michelle Waterson	Submission (guillotine choke) @ 1:04 of R3	Invicta FC 10: Waterson vs. Tiburcio	12.05.14
4	Ayaka Hamasaki	def.	Herica Tiburcio	Decision (split) @ 5:00 of R5	Invicta FC 13: Cyborg vs. Van Duin	07.10.15
		def.	Amber Brown	Submission (armbar) @ 2:52 of R3	Invicta FC 16: Hamasaki vs. Brown	03.11.16
		def.	Jinh Yu Frey	TKO (doctor stoppage/cut) @ 4:38 of R2	Invicta FC 19: Maia vs. Modafferi	09.23.16
Ayaka Hamasaki vacates the Invicta atomweight championship in order to compete in the strawweight division. Jinh Yu Frey and Minna Grusander compete for the vacant Invicta atomweight championship.
5	Jinh Yu Frey	def.	Minna Grusander	Decision (unanimous) @ 5:00 of R5	Invicta FC 30: Frey vs. Grusander	07.21.18
		def.	Minna Grusander	Decision (split) @ 5:00 of R5	Invicta FC 33: Frey vs. Grusander 2	12.15.18
Jinh Yu Frey is stripped of the Invicta atomweight championship after failing to make weight for her Invicta FC 39 title defense. Contenders have yet to be determined to compete for the vacant Invicta atomweight championship.