Tarrasque vs Balrog

The Tarrasque from Dungeon and Dragons battles the fearsome Balrog from Middle-Earth. Who wins?

VERSUS

balrog wins

Tarrasque firmly sets the Balrog's top teeth on the curb, and applies his foot to the back of said Balrog's head with irresponsible levels of force.

Balrog loses unless it is capable of casting a Wish spell.

Balrog lose bad here. Balrog lose with Gandalf the Gray one vs one. Tarrasque can tank a team of 4 epic characters. Gandalf the Grey is not on D&D epic level. Terrasque stomps.

This.

LOTR characters are not on the level of top D&D characters.