Polymarket marketStarts Tue, Oct 6, 3:00am ET

Polymarket China Open: Karolina Muchova vs Naomi Osaka odds

On Polymarket, the favourite is Karolina Muchova, at 57%. The market settles by Oct 12, 2026, and $850 traded in the last 24 hours. Each contract pays $1 if it is right, so 57¢ reads as a 57% chance. Kalshi lists it too, and we compare the two prices below.

Trade on Polymarket

Also on Kalshi: Kalshi's page

Polymarket · odds · updated

Karolina Muchova57%
Set 1 O/U 8.5 · Over77%
Match O/U 22.5 · Under55%
Match O/U 23.5 · Under56%
Game Spread +/-1.5 · Karolina Muchova -1.551%

All 16 outcomes ↓

Also priced on Kalshi: compare both

$850
24h volume on Polymarket
$970
total volume on Polymarket
12
open of 16 outcomes
Oct 12, 2026
settles

Polymarket odds on every outcome

Polymarket odds on each outcome of China Open: Karolina Muchova vs Naomi Osaka
OutcomeChanceYes price24h volume
Karolina Muchova compare 57%57¢$800Trade
Set 1 O/U 8.5 · Over77%77¢$19Trade
Match O/U 22.5 · Under55%55¢$11Trade
Match O/U 23.5 · Under56%56¢$10Trade
Game Spread +/-1.5 · Karolina Muchova -1.551%51¢$9Trade
Total Sets: O/U 2.5 · Under 2.562%62¢$2Trade
Set 2 Winner · Karolina Muchova54%54¢$0Trade
Match O/U 21.5 · Over54%54¢$0Trade
Set 1 Winner · Karolina Muchova54%54¢$0Trade
Set 1 O/U 9.5 · Under50%50¢$0Trade
Show 6 more outcomes
Polymarket odds on each outcome of China Open: Karolina Muchova vs Naomi Osaka
OutcomeChanceYes price24h volume
Set 1 O/U 10.5 · Under62%62¢$0Trade
Set Handicap +/-1.5 · Naomi Osaka +1.564%64¢$0Trade
Completed Match––$0Trade
Set 2 O/U 8.5––$0Trade
Set 2 O/U 9.5––$0Trade
Set 2 O/U 10.5––$0Trade

Chance is each outcome's Yes price on Polymarket. A Yes contract at 57¢ pays $1 if that outcome wins.

Polymarket vs Kalshi on this match

The same match on both venues. When the prices differ, the cheaper side costs you less for the same payout.

Karolina Muchova: China Open: Karolina Muchova vs Naomi Osaka: price on each venue, the fee, 24h volume and liquidity, with a link to trade
VenueKarolina MuchovaNaomi OsakaFee24h volumeLiquidity
Polymarket57¢43¢cheapest to buy1.2¢$800$42KTrade →
Kalshi56¢cheapest to buy45¢1.7¢$748–Trade →
Updated Fee: the taker fee on one contract at the price shown, as each venue publishes it; Polymarket's is its international book, Polymarket US charges its own.

Full comparison

How the odds have moved

Polymarket · Karolina Muchova
57%unchanged since Oct 4
Yes price
Oct 448% – 66% scaleOct 5

Polymarket's own series for the outcome the headline prices, from where its history starts; one venue, not a blend.

How this market resolves

Polymarket's own settlement wording, in full. This, not the headline, decides who gets paid.

Show the full rules

This market refers to the tennis match between Karolina Muchova and Naomi Osaka in the China Open, originally scheduled for October 5, 2026 at 11:00PM ET.

This market will resolve to 'Karolina Muchova' if Karolina Muchova advances against Naomi Osaka.

This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Karolina Muchova.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 19, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Scheduled resolution: Oct 12, 2026.

How to trade this market on Polymarket

  1. Check your state first. Several states restrict sports contracts.
  2. Open a Polymarket account. Americans trade on Polymarket US. Our Polymarket review covers sign-up and payouts.
  3. Buy Yes or No at the price shown, 57¢ for Karolina Muchova right now. Each contract pays $1 if you are right.
  4. Sell any time before it settles, or hold to the result. Polymarket's fees apply to each trade.

CoinStats may earn a commission on links to venues. Prices are indicative and may differ when you trade.

Common questions

What are the Polymarket odds on China Open: Karolina Muchova vs Naomi Osaka?

On Polymarket, the favourite is Karolina Muchova, at 57%. That is a market-implied probability, not a forecast, and it moves as traders buy and sell.

How does this market resolve?

By Polymarket's own settlement rules for this market. Two venues can word the same question differently and settle differently, so read them before you trade.

Is this question on Kalshi too?

Yes. Kalshi's page has its prices and rules. Our side-by-side page shows both prices and both venues' rules.

Can I trade this market in my state?

In most states, yes, on Polymarket US. Sports contracts are the exception: several states restrict them. Check your state first.

How accurate are Polymarket odds?

Often more accurate than polls, though never certain. A price of 70% should lose three times in ten. How accurate prediction markets are has the research.

What does it cost to trade on Polymarket?

A taker fee on most markets, largest near 50¢, and some categories charge nothing. Polymarket's fees has the detail.