Question 1

How much is Gum-Gum Giant Sumo Slap ST10-015 worth?

Accepted Answer

Gum-Gum Giant Sumo Slap ST10-015 from The Three Captains (ST-10) sells for €1.10 in Europe and $0.78 in the US, as of 3 November 2026.

Question 2

Is Gum-Gum Giant Sumo Slap ST10-015 going up or down in price?

Accepted Answer

Up. Over 30 days, since 6 October 2026, its Cardmarket price has risen 72%, from €0.64 to €1.10.

Question 3

Why is Gum-Gum Giant Sumo Slap ST10-015 priced differently in Europe and the US?

Accepted Answer

Cardmarket and TCGplayer are separate markets with their own sellers, buyers and supply. In the US it sells for $0.78 on TCGplayer, about €0.70, which is 37% lower than its €1.10 on Cardmarket. Prices are converted at the European Central Bank’s reference rate for the same day.

Question 4

Where does this price come from?

Accepted Answer

The European price is Cardmarket’s trend price, their daily estimate of what the card sells for now, from real sales. The US price is TCGplayer’s market price, from recent completed sales. Binderlist collects both every night and keeps each day’s price.

Question 5

What is the most valuable card in The Three Captains (ST-10)?

Accepted Answer

Monkey.D.Luffy ST10-002 at €13.46 on Cardmarket, as of 3 November 2026.

Set	The Three Captains (ST-10)
Number	ST10-015
Rarity	Common
Released	10 November 2023

Gum-Gum Giant Sumo Slap ST10-015 price

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Questions and answers

How much is Gum-Gum Giant Sumo Slap ST10-015 worth?

Is Gum-Gum Giant Sumo Slap ST10-015 going up or down in price?

Why is Gum-Gum Giant Sumo Slap ST10-015 priced differently in Europe and the US?

Where does this price come from?

What is the most valuable card in The Three Captains (ST-10)?

Most valuable in The Three Captains (ST-10)