KBO odds

One market per game, and it is the whole board

There is one question per game and no second layer beneath it. Across the whole slate the board carries the result and nothing else — the same market repeated on every fixture rather than a deep book on a few.

That is unusual even among the thinner boards here. Most leagues thin out by dropping their exotic markets first and keeping a core of three or four; this one has a core of one, applied uniformly.

The tie that pays half — and it is not hypothetical

This is the clause to read before anything else on the page. The market's published rule says that if the game is cancelled entirely with no make-up, or ends in a tie, it resolves fifty-fifty. If it is merely postponed, the market stays open until the game is completed.

In most baseball leagues a tie clause is boilerplate that never fires, because extra innings run until somebody leads. Korean baseball caps them. A regular-season game that is still level when the cap is reached is recorded as a tie — it happens a couple of times a season to most clubs, and up to half a dozen in a heavy year, and it counts in the standings.

So a two-outcome market here is not the clean binary the same market is elsewhere. Neither share wins outright; both settle at half. On a share bought at a short price that is a loss, and on one bought long it is a gain — the same asymmetry that makes the clause worth reading rather than skimming.

What is not on this board

There is no run line and no run total, on any game. There are no player markets — no home-run or strikeout lines. There is no first-five-innings book. And there is no season pool of any kind: no championship market, no award field, nothing that holds a price between games.

It is worth stating against the sibling board rather than in the abstract: the American baseball page on this site carries a first-five-innings book with its own draw outcome, home-run and strikeout markets by the dozen, a run-line ladder and a full slate of season pools. Same sport, and almost none of it is here. If you want that depth in baseball, it is one page away.

Ten clubs, a closed league, a long schedule

The KBO League is ten clubs playing a long schedule against each other — a heavily repeated fixture list rather than a wide one, so any two clubs meet many times across a season. There is no promotion or relegation: the league is closed. The competition below it is mostly farm squads attached to the top-flight clubs, alongside a military team and a city-owned side, rather than a second tier anyone is promoted out of.

For a bettor the repetition is the point. The same matchup recurs often enough that a view on it gets tested repeatedly, which is a different rhythm from a league where two clubs meet twice a year.

A step-ladder postseason, not a bracket

The KBO postseason is unusual and worth knowing even though no market on it is listed here. Five clubs qualify and they enter at different rungs rather than filling a bracket: the lowest qualifiers play first, and the winner climbs to meet the next club up, and so on. The regular-season winner sits out every round and waits at the top for whoever survives.

The practical effect is that finishing first is worth far more than finishing second — not a seeding advantage but a bye through the entire ladder. That asymmetry is why late-season games between the top clubs carry weight the standings alone do not convey.

What lands in your balance

You deposit a supported coin — Bitcoin, Ether, USDT, USDC, SOL or BNB among others — with no identity check. It converts to Polymarket's US-dollar stable unit on Polygon, and that is the unit every KBO position is priced, traded and settled in.

Once inside, your position moves with the game rather than with the coin you sent.

What a ticket costs, and how the money leaves

The cost is a flat 1% OVERDOG fee plus Polymarket's own fees, shown together before you commit. Nothing further is buried inside the price, because the price is made by an order book rather than by an internal risk sheet.

When the market resolves, winning shares redeem for $1 each on-chain and the payout is recorded on Polygon, where anyone can verify it. Withdrawals go back out in crypto, with no cards or bank transfers anywhere in the flow.

No vig on KBO prices

Every KBO outcome trades as a share that pays $1 if it happens and nothing if it does not, so the price reads as the market's implied chance for that club — with the tie case above priced into it. Those prices come from an order book rather than from a margin added to a line, which is what no vig means. It describes how the price is built and never implies a bet will win.

On a two-outcome market there is nowhere for a margin to hide except in those two numbers, which is why the distinction is easy to see here and harder to see on a long field.

No identity check, and a wallet you can export

You deposit and withdraw in crypto with no identity check, and you can export your wallet and withdraw anytime — we can't freeze you. There is also no house position to defend, so betting the KBO well never gets your account limited or closed. Settlement runs on-chain via Polymarket on Polygon, where every resolution is publicly verifiable.

On a board this thin the real constraint is liquidity rather than permission: what limits the size of an entry is how much book stands behind that game at that moment, never a decision about your account.