Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 1 Winner | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 2 O/U 10.5 | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 1 O/U 10.5 | 100% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Match O/U 21.5 | 99% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Match O/U 23.5 | 88% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Match O/U 22.5 | 85% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Total Sets: O/U 2.5 | 75% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic | 68% |
| Completed Match | 50% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set Handicap +/-1.5 | 6% |
| Cincinnati Open: Janice Tjen vs Viktorija Golubic Set 2 Winner | 0% |
Market context
The Cincinnati Open match between Janice Tjen and Viktorija Golubic, scheduled for 16 August 2026 at 10:00 AM ET, is currently priced at 98% YES on Polymarket, reflecting overwhelming confidence in the match occurring as planned. This probability is denominated in USDC on Polygon, with conditional tokens settling based on whether Tjen advances past Golubic. The 2% NO position represents residual risk of cancellation, postponement beyond seven days without resolution, or an incomplete match without a determined winner.
Golubic, a Swiss player ranked in the WTA's mid-tier, has competed consistently at Masters 1000 events over the past five years, though she rarely reaches deep tournament stages. Tjen, an American with a developing professional record, represents the type of lower-ranked player often drawn into early rounds at Cincinnati. Historical precedent suggests that WTA matches at established Masters events rarely cancel outright; the primary risk factors are weather delays (Cincinnati's August humidity occasionally triggers rescheduling) and player injury withdrawals, both uncommon enough to justify the 98 pricing.
Traders should monitor the official Cincinnati Open draw confirmation, typically released 48 hours before tournament commencement, and any weather alerts for the Cincinnati area in mid-August. The ATP and WTA typically maintain rigorous scheduling at Cincinnati given its status as a mandatory Masters event, minimising the likelihood of extended delays. Player injury reports from either competitor's social media or official WTA communications in the week preceding 16 August would be the primary catalyst shifting this market materially away from current levels.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Cincinnati Open: Janice Tjen vs Viktorija Golubic on PolyGram
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