Who would win?
Goku (Mastered Ultra Instinct) vs Luffy (Gear Fifth)
This matchup uses Mastered Ultra Instinct Goku and Gear 5 Luffy. Luffy combines an exceptionally flexible rubber body with advanced Haki and unpredictable attacks, but Gear 5 does not make him immune to damage. Goku combines instinctive movement with powerful strikes and ranged ki attacks, giving him the stronger overall attacking options in this comparison. We favour Goku to overcome Luffy’s defences, without treating either fighter’s transformation as unlimited protection.
- Ultra Instinct gives Goku an important advantage in reacting and fighting.
- Goku can attack with both physical force and ranged ki.
- Gear 5 and Haki make Luffy dangerous, but do not provide unlimited defence.
Goku from Dragon Ball Super in Mastered Ultra Instinct, the state the angels fight in, where his body dodges and counters on its own without conscious thought.
Monkey D. Luffy, captain of the Straw Hat Pirates in One Piece. Gear Fifth is his awakened Sun God Nika form, where his rubber body and the world around him bend like a cartoon.
📜 The evidenceWhat each fighter has actually shown, and the claims that don't hold up▼
Goku (Mastered Ultra Instinct)
- A Kamehameha left Full Power Jiren on the ground, and Jiren said the match was over.DBS ep. 130 · source
- Knocked Full Power Jiren around “with ease” and landed a strong blow to his chest.DBS ep. 129 · source
- Dodged Jiren's attacks automatically, appeared behind him and crushed his ki ball by hand, then deflected a blast aimed at the Universe 7 stands.DBS ep. 129–130 · source
- His clash with Jiren wrecked the Tournament of Power arena and cracked the gods' viewing stands.DBS ep. 129 · source
- Out-fought Jiren, then his body gave out from the strain before he could finish, and Jiren knocked him out of the arena.DBS ep. 129–130 · source
- “Outpaced Jiren the whole fight” He overwhelmed Jiren at first, then Full Power Jiren took the upper hand until Goku turned it round with a Kamehameha.DBS ep. 129–130 · source
Luffy (Gear Fifth)
- Beat Kaido by driving him deep into the earth with the Bajrang Gun — though Kaido had fought for a day and night and was worn down holding up Onigashima.One Piece ch. 1045–1049 · source
- Knocked Rob Lucci out with the Booming White Rocket; Lucci recovered later in the arc.One Piece ch. 1069–1070 · source
- Landed a Star Gun on Kizaru's head, then Gear 5 ran out and Luffy dropped nearly unconscious. Kizaru was back in action later.One Piece ch. 1092–1094 · source
- Got back up after Kaido's Bolo Breath and a Kosanze Ragnaraku that drove him through the floor.One Piece ch. 1045 · source
- Imu stabbed him through, which stopped him fighting until he ate stored food.One Piece ch. 1188–1191 · source
- “Planet-level punches” His biggest punch, a fist “nearly as big as Onigashima”, sent Kaido crashing into the ground: island scale, nothing planet-cracking.One Piece ch. 1049 · source
- “Heals from anything” He recovers by eating and resting — he needed a week after Kaido — and has never regrown a body part.One Piece ch. 1070 (recap) · source
The full breakdown
For the stat fans: every check the engine ran, fighting in character and with no holding back (engine v1.8.36).
In Character
In short
Goku exists on an entirely different order to Luffy — this is not a fight so much as a demonstration. Only Goku can put Luffy down. Luffy has no route that works here — everything available is either stopped or survivable, so Luffy cannot close the fight out. Only Goku has a valid win condition (a kill, a hold or a shutdown) — Luffy cannot end the fight. Goku obliterates the matchup. It is not close and it was never going to be.
The tables below show every check behind this, with the numbers the engine used.
Full engine breakdown
Power bracket
| Fighter | Bracket |
|---|---|
| Goku | 10 |
| Luffy | 6 |
Gap of 4. Awards 380 points to Goku.
Ability interactions
| Type | Interaction | Points |
|---|---|---|
| counter | Luffy's tactical precognition soft-counters Goku's speed blitz | +8 |
| regen | Luffy heals too fast for Goku to win just by wearing them down | — |
| speed | Goku is far faster (speed 9 vs 6) -> evasion + initiative (+20, survival not a kill) | — |
| invulnerability | Goku out-tiers the attacker; durability gate raised +3 (now 7) | — |
Soft counter: reduces an ability's effectiveness without nullifying it. Hard counter: the ability does not function against this opponent at all.
Win conditions tested
| Check | Goku | Luffy |
|---|---|---|
| Kill | PASS reach 7 vs Luffy's 4 | FAILED reach 5, needs 8 |
| Contain | FAILED no containment method | FAILED no containment method |
A kill lands only when the attacker's reach meets or beats the defender's resistance. Containment must clear two bars: it has to out-reach the opponent's escape and reach 8 to hold permanently — below that it is a temporary hold that lapses. A fighter who fails both cannot end the fight, however much damage they do — which is how an outmatched fighter can still force a stalemate.
Can they threaten at all?
| Fighter | Has a usable offensive route |
|---|---|
| Goku | YES |
| Luffy | YES |
This checks only whether a fighter can meaningfully attack at all. It is tested before the win conditions above — so a fighter can pass here and still have no way to finish the opponent.
Rulings
| Goku has no rating for resisting being knocked out or shut down, so it is read from their tier as 7 rather than as none (incap resistance 0 -> 7) |
| Luffy has no rating for resisting being knocked out or shut down, so it is read from their tier as 3 rather than as none (incap resistance 0 -> 3) |
| Only Goku has a valid win condition (a kill, a hold or a shutdown) — Luffy cannot end the fight |
Final score
| Key awards | Points |
|---|---|
| Only Goku has a valid win condition (a kill, a hold or a shutdown) — Luffy cannot end the fight | +150 |
The largest awards, not a full ledger — bracket gap, attribute clash and counter points are listed in their own sections above.
Goku 570 · Luffy 38 — margin +532, graded decisive. Points accumulate from the checks above. The engine resolves the fight; the AI only narrates the result it reached.
No Holding Back
In short
Morals make no difference to this one — it resolves exactly as above.
Full engine breakdown
Power bracket
| Fighter | Bracket |
|---|---|
| Goku | 10 |
| Luffy | 6 |
Gap of 4. Awards 380 points to Goku.
Ability interactions
| Type | Interaction | Points |
|---|---|---|
| counter | Luffy's tactical precognition soft-counters Goku's speed blitz | +8 |
| regen | Luffy heals too fast for Goku to win just by wearing them down | — |
| speed | Goku is far faster (speed 9 vs 6) -> evasion + initiative (+20, survival not a kill) | — |
| invulnerability | Goku out-tiers the attacker; durability gate raised +3 (now 7) | — |
Soft counter: reduces an ability's effectiveness without nullifying it. Hard counter: the ability does not function against this opponent at all.
Win conditions tested
| Check | Goku | Luffy |
|---|---|---|
| Kill | PASS reach 7 vs Luffy's 4 | FAILED reach 5, needs 8 |
| Contain | FAILED no containment method | FAILED no containment method |
A kill lands only when the attacker's reach meets or beats the defender's resistance. Containment must clear two bars: it has to out-reach the opponent's escape and reach 8 to hold permanently — below that it is a temporary hold that lapses. A fighter who fails both cannot end the fight, however much damage they do — which is how an outmatched fighter can still force a stalemate.
Can they threaten at all?
| Fighter | Has a usable offensive route |
|---|---|
| Goku | YES |
| Luffy | YES |
This checks only whether a fighter can meaningfully attack at all. It is tested before the win conditions above — so a fighter can pass here and still have no way to finish the opponent.
Rulings
| Goku has no rating for resisting being knocked out or shut down, so it is read from their tier as 7 rather than as none (incap resistance 0 -> 7) |
| Luffy has no rating for resisting being knocked out or shut down, so it is read from their tier as 3 rather than as none (incap resistance 0 -> 3) |
| Only Goku has a valid win condition (a kill, a hold or a shutdown) — Luffy cannot end the fight |
Final score
| Key awards | Points |
|---|---|
| Only Goku has a valid win condition (a kill, a hold or a shutdown) — Luffy cannot end the fight | +150 |
The largest awards, not a full ledger — bracket gap, attribute clash and counter points are listed in their own sections above.
Goku 570 · Luffy 38 — margin +532, graded decisive. Points accumulate from the checks above. The engine resolves the fight; the AI only narrates the result it reached.