The image shows that a Polymarket user earned hefty gains by betting on Seoul Mayor Oh Se-hoon’s victory in the June 3 local elections. [SCREEN CAPTURE]

A bettor on blockchain-based prediction platform Polymarket has reportedly pocketed roughly $160,000 from a wager on Seoul Mayor Oh Se-hoon’s victory in local elections on Wednesday.

A user operating under the nickname “JackInT” placed large wagers on several key battleground regions ahead of local elections, including the cities of Seoul and Busan as well as South Gyeongsang, according to Polymarket.

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The user’s total investment reached $321,500, and the account showed profits of $97,863 over the past 24 hours alone.