Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
50% | 50% | 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 |
|---|---|
| Tampere: Henri Squire vs Otto Virtanen Set 2 Winner | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 1 Winner | 50% |
| Tampere: Henri Squire vs Otto Virtanen Total Sets: O/U 2.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 2 O/U 8.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Match O/U 21.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 1 O/U 8.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 2 O/U 9.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Match O/U 22.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 1 O/U 9.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 2 O/U 10.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Match O/U 23.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set 1 O/U 10.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set Handicap +/-1.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen Set Handicap +/-1.5 | 50% |
| Tampere: Henri Squire vs Otto Virtanen | 0% |
| Completed Match | 0% |
Market context
Polymarket currently prices Henri Squire's advancement against Otto Virtanen at zero, reflecting either extreme confidence in Virtanen or profound uncertainty about match execution. The Tampere fixture, originally scheduled for 24 July 2026 at 10:00 AM ET, sits within a settlement window extending to 31 July 2026 at 14:00 UTC. On-chain, this conditional token structure on Polygon means traders holding YES positions face total loss if Virtanen advances or if the match fails to produce a winner within the seven-day grace period—a meaningful tail risk given scheduling volatility in lower-tier professional tennis.
Neither Squire nor Virtanen commands significant ATP ranking prominence, placing this match outside mainstream coverage channels. Historical precedent suggests matches involving players ranked outside the top 200 experience higher cancellation and delay rates than Grand Slam or Masters events. Finnish domestic tournaments and satellite events have experienced weather-related postponements; the late July timing in Tampere introduces potential rain disruption. Traders should monitor official tournament draws and player injury reports through the ATP website and Tampere tournament communications, typically released 48–72 hours before scheduled play.
The zero probability reflects rational caution: without confirmed player participation, recent head-to-head records, or tournament-specific conditions publicly available, the market defaults to maximum uncertainty. Any confirmation of both players' attendance or withdrawal would immediately shift conditional token valuations on Polygon, as would official rescheduling announcements that either compress or extend the seven-day window.
Methodology
We track Tampere: Henri Squire vs Otto Virtanen across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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.
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