The Iron Mask FilesUnofficial fan guide

Dream matchup · Earth-616 comics

Doctor Doom vs. Bucky Barnes

James Buchanan Barnes, Captain America's wartime partner, the Winter Soldier and, for a time, Captain America himself. Here are the odds against every version of Doom, the tale of the tape and the powers behind the numbers.

By the editors of The Iron Mask Files · Updated October 19, 2026

Who wins? The short answer

Doctor Doom, almost every time. In this site's fan ratings, classic Doctor Doom wins 86% of their one-on-one fights, and his best chance is as God Emperor Doom, who wins more than 99%.

Dream matchup

Bucky Barnes and Doctor Doom have never fought in the comics. These odds come from their powers alone, under the site's fight rules. Why we include dream matchups.

In the film: Sebastian Stan is on Marvel's announced cast for Avengers: Doomsday, which opens December 18, 2026. Everything we know about Avengers: Doomsday.

Classic Doom86%Favored
VS
Bucky Barnes14%Long shot

The verdict: Doom wins most nights

Fight rules: both fighters at their peak, no preparation, no allies, only their own powers and personal gear. A win is a knockout, a restraint they can't escape, or a forced surrender. The percentages are fan estimates, not official information.

Doom's edge

Doom's armor turns away bullets and a bionic fist with ease. Up close or at range, Bucky needs a weak point, and Doom doesn't leave many.

Bucky Barnes's edge

A super-strong bionic arm, a lifetime as a soldier and assassin, a sniper's patience and aim, and a stint carrying Captain America's shield.

Odds against every version of Doom

Doom's chance of winning, version by version. The strongest Doom here, God Emperor Doom, wins >99% of the time; the weakest, Fox Doom (2005), wins 50%. The last column says what moves each version away from classic Doom's 86%.

DoomDoom winsBarOutcomeWhat changes
Doom
Classic Doom
86%FavoredThe baseline Doom
Power Cosmic Doom
Power Cosmic (1967)
99%FavoredOverall +70 for this version
Beyonder-powered Doom
Beyonder power (1985)
>99%FavoredOverall +130 for this version
Unthinkable Doom
Unthinkable (2003)
99%FavoredOverall +65 for this version
Life Force Doom
Life Force (2012)
>99%FavoredOverall +110 for this version
God Emperor Doom
God Emperor (2015)
>99%FavoredOverall +150 for this version
Infamous Iron Man
Infamous Iron Man
84%FavoredOverall −4 for this version
Sorcerer Supreme Doom
Sorcerer Supreme (2025)
98%FavoredOverall +55 for this version
Doom 2099
Doom 2099
86%FavoredOverall −4 for this version; +3: Cyberpathy: he can talk to machines directly, and the Fantastic Four's suits and gadgets are machines.
Van Damme
Van Damme (Ultimate)
73%FavoredOverall −20 for this version
Fox Doom (2005)
Julian McMahon (2005)
50%Toss-upOverall −45 for this version
Fox Doom (2007)
Surfer's board (2007)
96%FavoredOverall +35 for this version
Fox Doom (2015)
Toby Kebbell (2015)
73%FavoredOverall −20 for this version

Tale of the tape

Eight stats on a 1-to-10 scale, classic Doom against Bucky Barnes. How the stat scales work.

StatClassic DoomBucky Barnes
Strength65
Speed75
Agility57
Durability95
Size65
Fighting skill69
Intelligence96
Ranged attack86

Bucky Barnes's power set

Who is Bucky Barnes?

Real name
James Buchanan Barnes
First appearance
Captain America Comics #1 (Mar. 1941)
Created by
Joe Simon and Jack Kirby
On screen
Sebastian Stan (2011 to 2025), who returns in Avengers: Doomsday

Bucky was Captain America's partner in World War II (Captain America Comics #1, 1941), believed killed in 1945, then revealed to have been turned into the Soviet assassin known as the Winter Soldier (Captain America vol. 5, 2005). After Steve Rogers was thought dead, Bucky took up the shield (Captain America #34, 2008), and in 2024 he led his own Thunderbolts. He has never fought Doom one-on-one in the comics.

Signature feats

Weaknesses and limits

Gear

Bionic arm, rifles and knives.

Affiliations

The Thunderbolts
Led the team from 2024.
Captain America
Steve Rogers's partner since 1941.

In a team fight

The marksman: precise, patient and deadly. Build a team against Doom.

Questions and answers

Who would win, Doctor Doom or Bucky Barnes?

In this site's fan ratings, classic Doctor Doom wins 86% of their one-on-one fights, so Doom is the favorite. Doom's edge: Doom's armor turns away bullets and a bionic fist with ease. Up close or at range, Bucky needs a weak point, and Doom doesn't leave many. Bucky Barnes's edge: A super-strong bionic arm, a lifetime as a soldier and assassin, a sniper's patience and aim, and a stint carrying Captain America's shield.

Have Doctor Doom and Bucky Barnes ever fought?

No. They have never fought in the comics, so this is a dream matchup: the odds come from their powers alone, under the site's fight rules.

Is Bucky Barnes in Avengers: Doomsday?

Yes. Sebastian Stan is on Marvel's announced cast for Avengers: Doomsday, which opens December 18, 2026.

Which version of Doom has the best chance against Bucky Barnes?

God Emperor Doom, who wins >99% of the time in these ratings. The weakest is Fox Doom (2005), at 50%.

What is Bucky Barnes's biggest weakness against Doom?

Human, apart from the arm.

How strong is Bucky Barnes?

Bucky Barnes's top-rated powers on this site are Marksmanship (9/10: A sniper of the highest order) and Combat training (9/10). On the site's 1-to-10 stat scale: strength 5, durability 5, intelligence 6, ranged attack 6.

Related matchups

Further reading

Looking for pictures? See official art on the Marvel Database, a fan wiki. This site does not host Marvel artwork.