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This market has resolved. The prices below are the last we captured from each platform, kept here for reference. Browse the archive →
SportsPre-game oddsevent concluded

Emma Navarro vs Marta Kostyuk

TBTheo Berkmann · Sports Markets Writer Resolves Jul 4, 2026Total volume $838K7 platforms

Price history

Implied probability over time
Outcome
Side
Platforms (max 3)
KalshiPolymarket
No price history for this platform selection yet.Polymarket and Kalshi carry full lifetime history; others fill in as we capture daily snapshots.

Where to back Marta Kostyuk

Every independent platform that prices this outcome, best price after fees first. The buttons are affiliate links. We may earn a commission if you sign up, and it never changes the odds you see or what you pay.

1
Matchbook4.5
Low-commission betting exchange
Marta Kostyuk57%no entry fee · commission on winnings
Volume€2K
Min · fees£10 · 2% commission
Market closed
2
Smarkets4.5
Low-commission UK exchange
Marta Kostyuk57%no entry fee · commission on winnings
Volume—
Min · fees£10 · 2% commission
Market closed
3
Futuur4.1
Global play-money + real-money markets
Marta Kostyuk58%no entry fee · commission on winnings
Volume$200
Min · feesNone · Commission on
Market closed
4
SX Bet4.1
On-chain peer-to-peer sports exchange
Marta Kostyuk62%no entry fee · commission on winnings
Volume—
Min · feesNone · Small fee
Market closed
5
Gemini4.6
Event markets from the Gemini exchange
Marta Kostyukafter fees91%91% price + 0.4% entry fee
Volume$678
Min · feesNone · Per-contract trading
Market closed
6
Kalshi4.9
The first CFTC-regulated US event exchange
Marta Kostyukafter fees99%99% price + 0.1% entry fee
Volume$123K
Min · feesNone · Per-contract trading
Market closed
7
Polymarket5.0
The largest on-chain prediction market
Marta Kostyuk100%no entry fee
Volume$511K
Min · feesNone · No trading
Market closed

Ranked by the effective price after each platform's own entry fee. Fees shown are each platform's own and may change. We don't set or control them. Betting exchanges (e.g. Matchbook, Smarkets) instead charge commission on winnings, so they stay at their raw price here.

Implied probability by platform

Lowest tradable raw price per outcome in gold · click a row
OutcomeFutuur4.1Gemini4.6Kalshi4.9Matchbook4.5Polymarket5.0Smarkets4.5SX Bet4.1
Emma Navarro42%46%1%44%0%44%46%
Marta Kostyuk58%91%99%57%100%57%62%

These are raw implied probabilities; gold marks the lowest raw price we can confirm is tradable. A price on a book too wide to trade is shown, but never marked. The Best odds above ranks by the price after each platform's entry fee, so the best place to trade can differ from the lowest raw number here.

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