Saitama (Limitless) vs Goku (Mastered Ultra Instinct)

Goku opens with everything his Mastered Ultra Instinct body can do without conscious thought — Instant Transmission placing him inside Saitama's guard before the bald hero's enhanced senses register the displacement, a point-blank God-fist striking Saitama's jaw with divine-class force, followed immediately by a sustained God Kamehameha that floods the surrounding space with blue-white energy. The beam is genuine — the kind of output that staggers planetary-scale opponents — and it connects flush. Saitama skids backward, expression unchanged, a faint scorch mark on his suit already fading. He tilts his head and cracks his knuckles, not because it hurts, but because it was at least something. Goku's Ultra Instinct autonomic defense is perfect; every counter Saitama throws is slipped or deflected by a body that moves before a mind can second-guess it, and for a long stretch the fight looks almost even — a godlike martial artist threading the needle against a being whose strength literally has no ceiling.

Then the exchange turns. Saitama's limitless scaling means each subsequent Serious Punch carries more than the last, not marginally but exponentially, and when one finally clips Goku's shoulder rather than passing through empty air it sends him through the horizon before Ultra Instinct's evasion can process the follow-through. Goku Instant Transmissions back, bleeding divine ki but absolutely unwilling to quit — that much has never changed since the Saiyan Saga — and fires a rapid-sequence Kamehameha barrage, forcing Saitama to walk through raw energy rather than pursue. Saitama walks through it. He always walks through it. His invulnerability treats divine-class energy like a stiff breeze, and the overconfidence shared by both men keeps each committed to the straight line of their greatest strength: Goku trusting that Ultra Instinct can thread every blow forever; Saitama trusting that one clean hit ends universes.

Goku is ahead on skill and reading — Ultra Instinct is genuine precognitive evasion and it shows, shaving centimeters off Saitama's Serious Consecutive Punches so that the shockwaves detonate behind him rather than on him. But stamina is draining against a foe who does not tire and does not diminish, and Mastered Ultra Instinct, for all its perfection of motion, was never designed to outlast infinity on a point-blank brawl. Saitama cannot hit what Instant Transmission keeps moving; Goku cannot put down what limitless recovery keeps standing. The two men hang in the air exchanging blows at speeds that reduce their movements to afterimages, neither falling, neither finished, the fight going on precisely because the thing that would end it — one undodged Serious Punch, or an energy output Saitama cannot simply absorb — has not yet materialized in any form either fighter can guarantee.

WINNER: Unresolved