Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Game 2 Winner | 100% |
| Game 3 Winner | 100% |
| Game 4 Winner | 100% |
| Match Winner | 100% |
| O/U 3.5 Games | 100% |
| Game Handicap: CFO (-1.5) vs Ground Zero Gaming (+1.5) | 100% |
| Both Teams Slay a Dragon | 100% |
| Odd/Even Total Kills | 100% |
| First Blood in Game 1? | 100% |
| Both Teams Slay a Dragon | 55% |
| Both Teams Slay a Dragon | 55% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| First Blood in Game 4? | 50% |
| Both Teams Slay Baron Nashor | 45% |
| Both Teams Destroy Inhibitors | 45% |
| Odd/Even Total Kills | 45% |
| Both Teams Slay Baron Nashor | 45% |
| Both Teams Destroy Inhibitors | 45% |
| Odd/Even Total Kills | 45% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| First Blood in Game 3? | 1% |
| First Blood in Game 2? | 1% |
| Game 1 Winner | 0% |
| O/U 4.5 Games | 0% |
| Game Handicap: CFO (-2.5) vs Ground Zero Gaming (+2.5) | 0% |
| Both Teams Slay Baron Nashor | 0% |
| Both Teams Destroy Inhibitors | 0% |
| Any Player Quadra Kill | 0% |
| Any Player Penta Kill | 0% |
Market context
CTBC Flying Oyster’s round-four meeting with Ground Zero Gaming is still live on esports trackers, but the market’s **0% YES** price is far below the pre-match view on specialist sites. Strafe’s match page has CTBC Flying Oyster at **87.3%** of community picks, while Stadio shows CFO as the stronger side in its pre-match read and bo3.gg’s live model also had CFO favoured before the series began.[4][11][8] That gap matters because crowd-implied probability in a prediction market can diverge sharply from fan voting and modelled odds: here, the contract appears to be pricing either an upset, a format mismatch in a **best-of-five**, or a substantial chance that the event does not settle conventionally.
Recent comparable meetings point to a competitive but CFO-leaning rivalry rather than a lopsided one. In the teams’ 2026 split-to-split history, Strafe lists them as **2-2** in prior head-to-heads, while bo3.gg records Ground Zero beating CFO **3-1** in February and CFO taking the later rematch **2-0** in May.[4][7][5] That mixed record helps explain why some external consensus still gives CFO the edge, but it also shows Ground Zero have already proven they can win a series against this opponent, which is the key historical check against treating a zero-priced market as a pure formality.[4][7]
The main catalysts are straightforward: confirmation that the series is actually played to completion, the live game state, and any schedule slippage inside the seven-day settlement window. Sofascore currently lists the match as underway at **09:00 UTC** with the scoreline at **1-1 in Game 3**, which sharply reduces the relevance of pre-match odds and increases the importance of completion risk for this contract.[1] Traders should also watch for any official LCP scheduling updates, because if the match were abandoned, tied, or delayed beyond seven days without a winner, the market resolves **50-50** rather than to either team.[1][6]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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.
UK Frequently Asked Questions
- 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 Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- What are the best prediction markets for UK traders in 2026?
- For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.
Trade LoL: CTBC Flying Oyster vs Ground Zero Gaming (BO5) … on Best Prediction Markets UK
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