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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

Cincinnati Open: Thiago Agustin Tirante vs Arthur Fils

TBTheo Berkmann · Sports Markets Writer Resolves Aug 21, 2026Total volume $847K5 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 Arthur Fils

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
Gemini4.6
Event markets from the Gemini exchange
Arthur Filsafter fees73%73% price + 1.0% entry fee
Volume$6K
Min · feesNone · Per-contract trading
Market closed
2
Matchbook4.5
Low-commission betting exchange
Arthur Fils78%no entry fee · commission on winnings
Volume€5K
Min · fees£10 · 2% commission
Market closed
3
Kalshi4.9
The first CFTC-regulated US event exchange
Arthur Filsafter fees78%77% price + 1.2% entry fee
Volume$128K
Min · feesNone · Per-contract trading
Market closed
4
SX Bet4.1
On-chain peer-to-peer sports exchange
Arthur Fils80%no entry fee · commission on winnings
Volume—
Min · feesNone · Small fee
Market closed
5
Polymarket5.0
The largest on-chain prediction market
Arthur Fils100%no entry fee
Volume$633K
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
OutcomeGemini4.6Kalshi4.9Matchbook4.5Polymarket5.0SX Bet4.1
Thiago Agustin Tirante28%25%23%0%28%
Arthur Fils73%77%78%100%80%

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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