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Live prediction market odds for Claire Liu vs. Mary Stoiana. Compare prices across Kalshi and Novig and Polymarket and ProphetX.

Browse historical results
Kalshi

Kalshi

4.9
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Claim offerLegal in USAVerified Sep 14, 2026

Kalshi / Novig / Polymarket / ProphetX

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Claire Liu vs. Mary Stoiana

WTA·2026-09-15

Best price · tap to trade

Claire Liu57¢1.75xNovigMary Stoiana44¢2.27xNovig
Learn more:How to Read Prediction Market PricesCompare Fees Before You TradeNew to Polymarket?

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Resolved Sep 29

Final odds

About This Market

Traders give Claire Liu about a 56.5% chance. Mary Stoiana follows at 44.4%. Compare prices from Kalshi, Novig, Polymarket, and ProphetX. The largest cross-platform price difference is 1.5 percentage points.

Traders give Claire Liu about a 56.5% chance. Mary Stoiana follows at 44.4%. Compare prices from Kalshi, Novig, Polymarket, and ProphetX. The largest cross-platform price difference is 1.5 percentage points.

Claire Liu vs. Mary Stoiana: WTA Tennis match scheduled for 2026-09-15. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.

Price History

Multi-Platform Probabilities
Loading 30D data…

Live Markets

4 platforms

Moneyline

OutcomeConsensus
Kalshi
Novig
Polymarket
ProphetX
Best price
CL
Claire Liu
56%
Kalshi57¢
Novig57¢
Polymarket56¢
ProphetX57¢
Novig1.77x57¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
56.0%55¢57¢43¢45¢
NovigNovig
56.0%55¢57¢43¢45¢
PolymarketPolymarket
55.0%54¢56¢44¢46¢
ProphetXProphetX
56.0%55¢57¢43¢45¢
MS
Mary Stoiana
44%
Kalshi44¢
Novig44¢
Polymarket45¢
ProphetX45¢
Novig2.30x44¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
43.0%42¢44¢56¢58¢
NovigNovig
43.0%42¢44¢56¢58¢
PolymarketPolymarket
44.0%43¢45¢55¢57¢
ProphetXProphetX
44.0%43¢45¢55¢57¢
KalshiKalshiNovigNovigPolymarketPolymarketProphetXProphetX

Best price among US-regulated venues.

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Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread1.5%
Platforms4
Candidates2
Leader

Claire Liu

56.5% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Claire Liu vs. Mary Stoiana

Official settlement criteria, resolution sources, and edge cases across Kalshi and Novig and Polymarket and ProphetX.

KalshiKalshi
Primary Rule

If Mary Stoiana wins the Stoiana vs Liu professional tennis match in the 2026 WTA Sao Paulo Round Of 32 after a ball has been played, then the market resolves to Yes.

Edge Cases

The following market refers to the Stoiana vs Liu professional tennis match in the 2026 WTA Sao Paulo Round Of 32 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks). Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.

Resolution Oracles
Kalshi Rules
NovigNovig
Primary Rule

Mary Stoiana in Claire Liu @ Mary Stoiana Round of 32 (WTA); settled by Novig.

Edge Cases

If the contract cannot be settled on the stated outcome, Novig settles it at fair market value (FMV) instead of refunding it.

PolymarketPolymarket
Primary Rule

This market refers to the tennis match between Mary Stoiana and Claire Liu in the Sao Paulo Open, originally scheduled for September 14, 2026 at 9:00AM ET. This market will resolve to 'Mary Stoiana' if Mary Stoiana advances against Claire Liu. This market will resolve to 'Claire Liu' if Claire Liu advances against Mary Stoiana. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 28, 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.

Resolution Oracles
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
Primary Rule

Sports moneyline - resolves based on official game outcome per ProphetX Prediction Rules

Resolution Oracles
ProphetX Rules

Frequently Asked Questions

What does the Claire Liu vs. Mary Stoiana prediction market track?

The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Novig, Polymarket, ProphetX in one place. Each price reflects the market’s implied probability, not a guaranteed result.

What are the latest Claire Liu vs. Mary Stoiana odds?

The latest available prices are Claire Liu: 57.0¢ on Kalshi, 55.5¢ on Polymarket, 56.8¢ on ProphetX, 56.5¢ on Novig; Mary Stoiana: 44.0¢ on Kalshi, 45.0¢ on Polymarket, 44.9¢ on ProphetX, 43.5¢ on Novig. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity.

Why do Claire Liu vs. Mary Stoiana odds vary across prediction markets?

The largest price difference shown across venues is 1.5 percentage points. Venues have different traders, liquidity and fees, so their prices can differ. A price gap alone does not establish an executable arbitrage opportunity; compare settlement rules and the actual buy and sell prices.

How do Claire Liu vs. Mary Stoiana prediction market payouts work?

For example, Claire Liu at 56.5¢ implies about a 56.5% chance. For a standard $1 contract, a share pays $1 if its outcome settles as correct and $0 if it settles as incorrect. A winning share bought at 40¢ earns 60¢ before fees. Check each venue’s settlement rules, fees and eligibility before trading.