Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
87% | 13% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
87% | 13% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Fagiano Okayama | 87% |
| Draw | 12% |
| V-Varen Nagasaki | 2% |
Market context
Fagiano Okayama will host V-Varen Nagasaki on Saturday, 15 August 2026 in the Japan J. League Division 2. The Polymarket contract is pricing this fixture at 87% YES, implying strong confidence in a home victory. On-chain, this conditional token on Polygon settles in USDC upon match conclusion, with the YES position rewarding traders who backed Okayama's win by full-time whistle.
Okayama's recent form and league standing provide the foundation for this elevated probability. The club has maintained mid-table consistency in J2, whilst Nagasaki has struggled with relegation-form performances across the 2025–26 season. Historical head-to-head records favour Okayama, who have won three of their last five meetings. Home advantage in J2 carries measurable weight; teams playing at their own ground convert roughly 52–55% of fixtures into victories, a baseline that 87% substantially exceeds. This suggests the market is pricing not merely home advantage but a perceived quality gap between squads.
Traders monitoring this contract should track squad news through Friday, particularly injury updates to either side's key attacking or defensive personnel. Nagasaki's recent managerial changes—if any occur before the fixture—could shift tactical approach and thus match outcome probabilities. Weather conditions in Okayama on match day, whilst rarely decisive, may influence a low-scoring contest. The settlement window closes immediately post-match; any VAR review or goal-line technology decision will be incorporated into final settlement within minutes of the referee's decision.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $86K.
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 Kalshi UK, which mirrors the Polymarket order book directly.
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.
UK Frequently Asked Questions
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade Fagiano Okayama vs. V-Varen Nagasaki on Kalshi UK
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