Izawa Submitted RENA to Retain Her RIZIN Title
Seika Izawa submitted RENA with a guillotine choke at 1:58 of round two on December 31, 2025, at RIZIN’s year-end event in Saitama. Izawa retained the women’s super atomweight championship after surviving a difficult opening round.
The champion rallied after adversity
RENA threatened early with her striking and put Izawa under pressure in the first round. Izawa adjusted by bringing the fight to the ground and looking for control positions.
In the second round, Izawa secured a guillotine choke and forced RENA to tap at 1:58. The submission ended the title bout before the scheduled five-round distance.
The official method was a guillotine choke. Izawa retained the RIZIN super atomweight title and remained unbeaten.
A year-end championship rematch
The fight headlined RIZIN’s December 31 event at Saitama Super Arena. It was a rematch between two of Japan’s most recognizable women’s combat athletes, with RENA challenging the reigning champion.
Izawa’s comeback made the title defense more competitive than a quick result might suggest. The first round saw her face meaningful danger before she shifted the contest toward grappling.
Her second-round choke ended a fight that had swung sharply in momentum.
RIZIN’s event records and contemporary reports list the second-round submission at 1:58. The result was a successful defense, not a title change.