Live sure bets and arbitrage opportunities for KBO events across 100+ bookmakers. Updated every 5 minutes.
Right now the feed shows 1 live opportunity in 1 competition, priced across 2 bookmakers, with the best returning 1.00%.
The most common market type in the current feed is goals & totals, appearing in 1 opportunity. These are counted directly from the outcome labels the feed returns on each arbitrage leg, so the figures below reflect the markets bookmakers are actually pricing right now rather than a fixed list.
Baseball arbs concentrate in the moneyline, run line and total markets. The structural detail to check is whether the books are quoting the same market definition — a moneyline that includes extra innings is not directly comparable to one that books to the end of regulation. Once both legs settle on the same definition, the arbitrage calculation is standard.
The test is always the same regardless of sport: take the implied probability of every outcome you intend to back (1 ÷ decimal odds for each), add them up, and look at the total. Anything under 1.00 is an arbitrage, and the gap tells you the return before you place a single bet. OddsFetcher runs that comparison across every bookmaker in the feed continuously, so the opportunities listed at the top of this page are the ones where the total is genuinely below 100%.
Working out where to put the money is the practical next step. Each leg needs a stake proportional to its implied probability, and the free arbitrage calculator does that split for you from a total bankroll figure. If you would rather understand the arithmetic first, the sure bet calculation guide walks through two-way and three-way markets with worked examples, and the arbitrage betting guide covers how opportunities get created in the first place.
Not all baseball opportunities appear on this page at the same moment. Bookmakers reprice constantly, so the feed turns over throughout the day. To see every sport at once, use the live arbitrage scanner, or sure bets finder for a dedicated view. Single-outcome markets where one book's price is sharper than the consensus are listed separately under value bets.
Baseball arbs concentrate in the moneyline, run line and total markets. The structural detail to check is whether the books are quoting the same market definition — a moneyline that includes extra innings is not directly comparable to one that books to the end of regulation. Once both legs settle on the same definition, the arbitrage calculation is standard. Right now the feed shows 1 live opportunity in 1 competition, priced across 2 bookmakers, with the best returning 1.00%.
OddsFetcher tracks odds from more than 100 bookmakers across the whole site, and the KBO page above shows how many of them are currently pricing live KBO markets: 2 bookmakers are contributing right now. The number changes constantly because bookmakers add and drop markets. You can see the full list of every bookmaker currently in the feed on the bookmaker coverage page.
In the current feed the market types producing KBO arbitrage are goals & totals. The most common market type in the current feed is goals & totals, appearing in 1 opportunity.
This page is scoped to KBO, so the opportunities listed are the ones priced for KBO specifically. When no KBO arb is live, that is a temporary gap in the feed rather than an absence of KBO arbitrage — bookmakers reprice continuously, and the wider Baseball markets are shown on the Baseball page in the meantime.
Convert each decimal price to its implied probability by dividing 1 by the odds, then add those probabilities together across every leg you are backing. If the total is below 1 — for example 0.98 — you have an arbitrage, and the guaranteed return is (1 ÷ 0.98) − 1. The stake for each leg is proportional to its implied probability, so a KBO three-way market needs three separate stakes. The arbitrage calculator on this site does this for any set of prices automatically.
Comparing prices at different bookmakers is legal wherever sports betting is licensed, and an arbitrage is genuinely risk-free in theory — the profit is locked in before you place the bets. It is not risk-free in practice: you need an account at every bookmaker you back, the prices can move between finding an arb and placing the bet, and minimum-bet or stake-limit rules can prevent a full stake split. Most arbers also treat the profit as small and compound slowly rather than a large income.