Polymarket vs FanDuel arbitrage

This is the thinnest overlap of the six pairs and the one where the live count is zero most often. Polymarket's player-market coverage is still filling in and FanDuel prices almost everything, so the set of bets both venues quote at once is small — and a two-sided position can only exist inside that set.

FanDuel moves on the money it takes and on what the market makers around it are doing. Polymarket moves when someone trades. Where both are quoting the same game line, the disagreement that opens a position is usually a Polymarket order book that has drifted on light volume rather than a FanDuel price that is wrong. That is worth knowing before you take one: the leg that moved is the leg that is more likely to keep moving.

Because the overlap is mostly game lines rather than player props, the stakes involved tend to be larger and the Polymarket depth question gets sharper. A game-line market on Polymarket can hold real size on a marquee fixture and almost none on a mid-week game with the same label. Check the size first; the position is only as good as the fill you actually get.

Polymarket odds today. Polymarket's taker fee is a fraction of a percent, which makes its headline quote very close to the all-in cost and often the cheapest of the exchanges in the middle of the price range.

FanDuel odds today. FanDuel's margin is inside the price, so it is charged on every bet regardless of the result.

Leave this page open — the board above rescans itself as Polymarket's and FanDuel's prices move, so a position that opens while you're reading appears on its own rather than needing a reload. Right now the two are both quoting 2+ Touchdowns, 3+ Touchdowns, Anytime Touchdown, Passing Touchdowns, Passing Yards, Receiving Yards, Receptions, Rushing Yards, Moneyline, Spread, and Total, which is the only ground a position between them can come from.

What a card here actually means

A fair line would put Polymarket's price and FanDuel's price on opposite sides of the same bet at exactly 100% of a certainty between them. This board only prints a card when the two real prices, net of both venues' fees, add up to less than that — the gap between 100% and what they actually sum to is the arbitrage, and the stake split tells you how to size each leg so both sides return the same amount whichever one wins. On a Polymarket vs FanDuel position that return is fixed rather than probable — expected value (EV) of a certain kind rather than a probable one, which is why it's usually smaller than a single-sided bet's edge.

Polymarket's leg is the one with a finite order book behind it on this Polymarket vs FanDuel pair — check its depth before you place the FanDuel side, since it's the side that can fill at a worse price or disappear while you're placing the second leg. Run Polymarket and FanDuel's exact numbers through the arbitrage calculator before you place either leg — the fee table above uses one fixed example, and your own prices won't match it exactly. For every other pair BeatVig tracks, see arbitrage bets today.