This is canon Thor, not Rune King and no Odinforce. Thor has Mjolnir and his magic belt. Thor gets no breaks between battles until after battle 5, and then he gets 1 day of rest. No BFR, Thor cannot tap into other dimensions and he cannot use time control or time warps. No morals for Thor, he's not holding back, he also has Warrior's Madness, but doesn't go insane.
Fight takes place on an uninhabited Earth, planet-busting attacks work but don't destroy the planet. No prep. A character is out of the fight if KO'd, incapacitated, or killed.
13 rounds, how far does Thor get, or which battles does he win?
1: Fantastic Four (classic versions of each)
2: Ares, Colossus
3: Abomination, A-Bomb
4: Green Scar Hulk, Skaar with his axe and sword
5: Ghost Rider, Hercules (No weapons for the two, except Johnny's bike, but no chains, no mace, no axe or sword.)
From now on, 1 day rest between battles.
6: Classic Juggernaut
7: Gladiator, starts battle with full confidence
9: Void Sentry
10: Silver Surfer at full power
11: Dr Strange classic
12: Thanos with IG
13: Galactus at full power (Thor gets odinforce here.)