Polymarket tennis: match odds, set markets and the retirement rule

The match winner is the moneyline: one market, two players, and the question is who advances. Around it, the matches we read on 3 November 2026 carried the winner of set 1 and of set 2, total sets over/under 2.5, a set handicap such as −1.5, a game spread, over/under lines on the games in a set and in the match, and a “completed match” market. Each is its own market with its own price and its own depth.

Depth is the main thing to know about tennis here. The matches we read had traded from about $350 to about $430K each, and half had traded less than roughly $2K. The big numbers belong to tour-level matches; the many small ITF and Challenger matches are thin, and a thin market has a wide gap between the price to buy and the price to sell. That gap is a cost on top of any fee, so the “traded so far” line on each card is worth a look.

Prices can move fast once a match is under way, and a limit order you left resting will not be there: Polymarket's markets documentation says outstanding limit orders on sports markets are cancelled automatically once the game begins, and that start times can shift, so monitor your orders around the start. Selling your shares before the end is the Polymarket version of a cash-out.

Retirements and walkovers are where tennis bets go wrong, and the rules text settles them. These points come from the markets for Elena Pridankina vs. Paula Badosa (WTA, 2 November 2026), in our words. The live quotes below them are read from the markets listed above.

• Retirement, default or disqualification. If the match begins, is not completed and one player advances because the other retires, defaults or is disqualified, the match winner market resolves to the player who advances. You win or lose on who advances, not on a completed score.
• Walkover. If a player withdraws before the start and the other advances automatically, the market resolves 50-50. So does a canceled match, a tie, or a match with no winner within 14 days of the scheduled start. Polymarket's resolution docs say a 50-50 resolution redeems every share at $0.50.
• Set 1 winner. If the match ends early but the first set was finished, the market resolves on that set. If the first set was not completed, it resolves 50-50.
• Set handicap. If the match ends by retirement, default or disqualification, the handicap resolves 50-50, unless play already decided it. In the rules' own example, a −1.5 handicap can no longer be won once the deciding set has begun.
• Total games. Every tie-break, including a champions or super tie-break, counts as one game. A suspended match keeps the market open until it is finished.
• Completed match. It resolves Yes only if all the games and sets needed to decide the match are played through normal play, and No on a retirement, walkover or other forfeit. It is the market that prices the risk of a match not finishing.

A bookmaker may void a bet on a match that is not completed, or settle it differently, so read its rules next to these before you compare prices.

The Polymarket taker fee is shares × 0.05 × price × (1 − price), so as a share of your trade it is 0.05 × (1 − price). A tennis favourite can sit at 75¢ or far higher, where the fee is small, and an underdog at 25¢ or far lower, where it is larger. Polymarket’s market data lists a rate of 0.05 on the matches above. The table sets an invented bookmaker line of −300 on the favourite and +240 on the underdog (chances of 75% and 29.41%, a margin of 4.23%) against a Polymarket market at 75¢ and 25¢.

In this made-up case the Polymarket profit is lower than the bookmaker's on the favourite after the 1.25% fee, and higher on the underdog after 3.75%. Real markets have a gap between the buy and sell price and will not match this example, in either direction. A limit order that waits to be filled pays no fee. The Polymarket odds converter sets your own bookmaker line against a live price, and the payout calculator shows what any amount returns.

Outside single matches, Polymarket lists markets such as the winner of a tournament or which players qualify for the year-end finals. Each is a Yes/No share that pays $1 if it comes true. WhaleSays does not have a page for them yet, so these link to the markets themselves, as they were at the last refresh.

Sportsbooks set their own limits and can restrict individual accounts. Polymarket's docs say its order book has no trading size limits, but on all but the biggest matches the traded volume is a few thousand dollars at most, so a large bet moves the price against you. Our guide to what to do when a sportsbook limits your account lists the options, and Polymarket sports betting translates the other bet types.

Polymarket's sports leaderboard covers every sport together, not just tennis. Its top sports trader over the last 30 days, BreakTheBank, made $6.7M. Leaderboards show the survivors: a Wall Street Journal analysis published in May 2026 found that 67% of Polymarket's profits went to 0.1% of accounts, so most traders earn far less and many lose money. See the Polymarket sports leaderboard for the ranking by day, week, month and all time, and the payout calculator for what a trade at any price would return.

• Polymarket sports betting: how an exchange differs from a sportsbook, bet types translated, and the fee against the margin.
• Polymarket odds converter: any price as American, decimal and fractional odds, and your bookmaker's line next to Polymarket.
• Polymarket fees explained and the fee calculator for rates by category.
• Sportsbook limited your account? What the options are.
• How to make your first trade and where Polymarket is open.