Baseball betting with Bitcoin and crypto
Baseball betting with Bitcoin and other crypto on OVERDOG means backing Major League Baseball at prices pulled straight from the Polymarket exchange — set by traders, with no bookmaker margin. You fund in Bitcoin or another supported coin, bet with no identity check, and settle on-chain.
The live baseball board above lists what's in play — moneylines, run lines, run totals, NRFI and innings specials, and World Series futures. Below is the durable picture: which teams and leagues you can bet, what each bet type means, and how betting baseball on Polymarket through OVERDOG works.
Betting is entertainment, not income — stake only what you can afford to lose.
What baseball can I bet on?
OVERDOG's baseball board is built around Major League Baseball — all thirty MLB clubs across the American League and National League — the same teams the major books cover, priced as live exchange markets rather than fixed bookmaker lines.
American League — East, Central and West
The American League splits into three divisions. The AL East pits the New York Yankees, Boston Red Sox, Toronto Blue Jays, Baltimore Orioles and Tampa Bay Rays against one another; the AL Central gathers the Cleveland Guardians, Detroit Tigers, Kansas City Royals, Minnesota Twins and Chicago White Sox; the AL West runs through the Houston Astros, Seattle Mariners, Texas Rangers, Los Angeles Angels and the Athletics. Division rivals meet often over a long season, which keeps their moneylines and run lines busy on the board.
National League — East, Central and West
The National League mirrors that structure. The NL East features the Atlanta Braves, Philadelphia Phillies, New York Mets, Washington Nationals and Miami Marlins; the NL Central holds the Chicago Cubs, Milwaukee Brewers, St. Louis Cardinals, Cincinnati Reds and Pittsburgh Pirates; the NL West is led by the Los Angeles Dodgers, San Diego Padres, San Francisco Giants, Arizona Diamondbacks and Colorado Rockies. Interleague play puts AL and NL clubs on the same card, and the postseason narrows both leagues to the World Series.
KBO, NPB and international baseball
Baseball betting runs beyond MLB. When their seasons overlap, Asian leagues such as the KBO in South Korea and NPB in Japan open moneyline and totals markets of their own. Which leagues are live shows on the board above — MLB anchors the American summer from spring through October, and the international calendars help fill the gaps around it.
Baseball bet types
Here is what you can bet on OVERDOG's baseball board, from the game winner to the first-inning specials — each one a live market priced by the order book, not a fixed bookmaker line.
Moneyline (game winner)
The moneyline is the straight bet on which team wins the game. Baseball's moneyline is two-way — there is no draw, since extra innings play the game to a result — so you are simply backing the home or away side. Because starting pitching swings a single game so heavily, moneyline prices move sharply the moment a probable starter is announced or scratched.
Run line (the baseball spread)
The run line is baseball's spread, almost always set at a run and a half. A favorite at -1.5 must win by two runs or more to cover, while an underdog at +1.5 covers by winning outright or losing by a single run. It is how you take a shorter price on a strong favorite or extra cushion on a live underdog, and it trades as a live market on the board.
Over/under run totals
Totals ask whether both teams' combined runs finish over or under a posted number, such as 8.5, regardless of who wins. A duel between two ace starters in a pitcher-friendly park tends to price under; a matchup of thin bullpens on a hot day prices over. Team totals narrow the same question to one club's runs.
NRFI, first five innings and extra innings
Baseball's specials price parts of a game rather than its final result. NRFI — 'no run first inning' — bets on whether the opening frame stays scoreless, and its YRFI counterpart takes the other side. First-five-innings markets settle on the score through the top and bottom of the fifth, isolating the starting pitchers before the bullpens take over, while extra-innings markets bet on whether a game runs past the ninth. These are the deepest specials on the baseball board.
World Series and season futures
Season-long futures price a whole campaign rather than one game — the World Series winner, the pennant in each league, division titles and award races such as MVP and Cy Young. These outright markets carry many contenders at once, so each lives on its own futures pool page, linked from the board, rather than in the single-game list here.
How to bet baseball with crypto on OVERDOG
Betting baseball with crypto on OVERDOG is crypto in, crypto out — the trading in between happens in a dollar-denominated unit:
1. Deposit a supported coin — Bitcoin, Ether, USDT, USDC, SOL or BNB — with no identity check. It converts to Polymarket's US-dollar stable unit on Polygon (about one-to-one with the dollar), the unit every position is priced, traded and settled in.
2. Pick a baseball market from the live board — a moneyline, run line, total or NRFI — and buy shares in the outcome you want at the exchange price. The cost is a flat 1% OVERDOG fee plus Polymarket's own fees, shown together before you commit — there is no separate bookmaker margin and no promotions.
3. When the game resolves, each winning share redeems for one dollar on-chain, and you withdraw back to crypto. There are no cards or bank transfers.
Betting baseball on Polymarket with OVERDOG
OVERDOG is an access layer to the Polymarket exchange, not a bookmaker. When you bet baseball here, your order routes to Polymarket's real order book — you just get a betting-terminal experience over it, with crypto funding and no account gates.
No vig — real order-book odds
Every baseball outcome trades as a share that settles at one dollar if it happens and zero if it does not, so the price reads directly as the market's implied probability. Because those prices come from an order book rather than a bookmaker's spreadsheet, there is no margin — no vig — baked in. It describes the price only; it never implies a bet will win.
Winners are never limited
There is no house taking the other side of your bet, so there is no book to protect. Betting well never gets your account limited or closed — a structural contrast with sportsbooks, which routinely restrict winning baseball bettors.
No-KYC, your custody
You deposit and withdraw in crypto with no identity check, and you can export your wallet and withdraw anytime — we can't freeze you. Settlement runs on-chain via Polymarket on Polygon, where every resolution is publicly verifiable.