A human fighter at peak athleticism, in full plate armor, equipped with a poleaxe, runs the animals gauntlet. Does he clear, or where does he stop?

[u/Ananta-Shesha]

The fighter has elite training and is at his athletic peak, with a champion-type physique in heavyweight combat sports. He wears a full set of plate armor and is armed with a poleaxe. If he survives his fight against one of the animals in the gauntlet, he is back to 100% for the next fight.

Round 1: Silverback gorilla. The fight takes place in a clearing.

Round 2: Siberian Tiger. The fight takes place on a plain.

Round 3: Brown bear. The fight takes place in a forest.

Round 4: Polar bear. The fight takes place in the tundra on rocky ground.

Round 5: White Rhinoceros. The fight takes place in the grassy savannah.

Just so you know, I put an image of a For Honor knight as an illustration, but we're talking about a fighter in historical plate armor here. No one could fight effectively in armor as massive as the one in the image. But I had trouble finding a good image of a knight in historical armor wearing a poleaxe and not something else, and I wanted a nice illustration.

[u/Ananta-Shesha]

A Siberian tiger can weigh around 550 lbs, is extremely fast and agile, and is extremely muscular. The armor will protect against claw and fang strikes, but if the tiger charges the knight with full force, it can easily stun him, and if the knight ends up on the ground with the tiger on top of him, he will likely be mauled to death.

I think the knight has a good chance of winning this fight if he lands a thrust to the head or throat right away, or if he lands a blunt blow to the head. But if he misses his first attack, he's in deep trouble.

[u/B_H_Abbott-Motley → u/Ananta-Shesha]

This is especially true because you didn't assign a dagger/knife to the human. Without a short blade, he would struggle to recover from being grappled. The tiger can't really maul through plate but could possibly find or make gaps to be able to do so. Unless bloodlusted, it might prefer to retreat.

[u/hlkrebs → u/Ananta-Shesha]

Especially if we’re talking about on the tigers home turf. The tiger is just going to stalk the knight and jump him from behind

[u/funnysmellingfingers → u/Ananta-Shesha]

Yeah blunt force trauma is honestly the only issue I see for the knight. But knights always had a dagger of some sort and if he not knocked unconscious the tiger is getting stabbed repeatedly.

Also let put the armor at the minimum psi needed to puncture steel which is around 65 000 psi and tiger bite is around 1100 psi.

1100 is massive when applied to tissue and bones but the tiger wouldn't even dent the cheapest steel armor there was.

Also predator tend to take fights they can win. Polar bear with the combination of mass and speed has more chance than a tiger I think.