In a fight to the death, who would win? A peak teenager male, versus a peak grown woman?

Hand-to-hand, fight to the death.

R1: Both of them are average people.

R2: The teenager is a college level boxing and wrestling champion, the woman is a amateur Krav Maga.

R3: The teenager is a amateur kickboxer, the woman has a black belt in Taekwondo.

Bonus R4: They have to kill each other with medieval armour and weapons.
In a fight to the death, who would win? A peak teenager male, versus a peak grown woman?
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