Longest continuous 1v1 fights?

[Juan]

The MC from Tin Star was said and shown to be able to fight for weeks and not be the slightest bit winded.

The MC from Heroes Rise fought nonstop against several different legendary superheroes for around 3 days in the last book.

[Drift]

Bast vs Apophis
Lasted multiple thousand years.

[SonDeathEater]

Mohji and Cabaji from the Buggy Pirates fighting for 12 hours straight until Richie one shots them in the Buggy Pirate cover story

[Akrona]

Iirc, the Doomslayer (from the Doom reboot) fought hoards of demons in hell for millennia without rest.

[R]

Ban in the recent chapter fought "how many decades?" in one go.

[Mythoclast]

This should apply to Meliodas too since the dragon Ban was fighting was just pre-resurrection Mel.

[COV]

Do temporal distortions really count? Not to object to anything just saying because time flows differently and such

[Rave]

Surprised nobody has mentioned this one yet; Alucard fought his familiars for 30 years straight until he successfully killed all of them

[Juan]

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Do temporal distortions really count? Not to object to anything just saying because time flows differently and such

there really wasn't a temporal distortion. time flies faster in Purgatory than in Earth, but everyone in there still experiences time as normal.

It's like a far more deadly Hyperbolic Time Chamber.

[COV]

Then the experiencing of their original time should determine the person’s actual stamina, not how long they live in said different time flow.

[Juan]

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Then the experiencing of their original time should determine the person’s actual stamina, not how long they live in said different time flow.

they ARE experiencing those decades in real time, what the fuck?

[ihascaketoo!]

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Then the experiencing of their original time should determine the person’s actual stamina, not how long they live in said different time flow.

Like Juan said it's similar to the hyperbolic time chamber. Gohan didn't come out a day older he when he stepped out, he actually aged and spent that year training with his dad.

[COV]

But they can’t follow that time flow he had no idea how long he had been in there, like how people ask themselves or others how long they have been stuck in jail, or on a deserted island, or trapped in some space. And trust me, the way he has been acting he definitely lost some parts of his mind, talking to himself.

at least in the hyperbolic time chamber they have a clock to help