Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
70% | 30% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
70% | 30% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Both Teams Slay a Dragon | 70% |
| Both Teams Slay a Dragon | 69% |
| Both Teams Slay a Dragon | 63% |
| Total Kills Over/Under 27.5 in Game 2? | 57% |
| Total Kills Over/Under 27.5 in Game 1? | 56% |
| Any Player Penta Kill | 52% |
| Both Teams Slay Baron Nashor | 51% |
| Any Player Quadra Kill | 51% |
| Odd/Even Total Kills | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Odd/Even Total Kills | 50% |
| Game Handicap: KC (-1.5) vs Team Vitality (+1.5) | 48% |
| First Blood in Game 2? | 47% |
| First Blood in Game 1? | 47% |
| Total Kills Over/Under 30.5 in Game 2? | 44% |
| O/U 2.5 Games | 42% |
| Total Kills Over/Under 30.5 in Game 1? | 42% |
| Game 1 Winner | 31% |
| Game 2 Winner | 31% |
| Any Player Quadra Kill | 29% |
| Any Player Quadra Kill | 29% |
| Match Winner | 25% |
| Any Player Penta Kill | 25% |
| Any Player Penta Kill | 25% |
| Both Teams Slay Baron Nashor | 17% |
| Both Teams Slay Baron Nashor | 17% |
| Both Teams Destroy Inhibitors | 13% |
| Both Teams Destroy Inhibitors | 13% |
Market context
Team Vitality meet Karmine Corp in an LEC regular-season best-of-three, with the market’s 31% YES implying Vitality are the underdog in a matchup that has swung both ways in recent recent meetings. Publicly available match reports show Karmine beat Vitality 1-0 in LEC 2025 Winter, while later 2026 coverage records a Vitality 1-0 win in a separate Versus stage meeting and a Karmine 2-1 win in another 2026 playoff series, which is consistent with a rivalry that does not price cleanly off one-sided form.[2][4][3]
For a contract settled in USDC, the main on-chain issue is not the gameplay itself but whether the official result is posted cleanly before the settlement window closes; if the match is delayed beyond seven days, cancelled, or left unresolved, the market falls back to 50-50 under the rules. Traders therefore usually focus on the LEC’s broadcast schedule, any late roster or lobby changes, and whether the series actually starts on time, because partial completion can still resolve if one side is awarded the win by the event organiser. Current wider crypto conditions matter mainly at the margin: a sharp move in BTC or ETH, or a change in USDC liquidity and funding, can affect how quickly market participants reprice risk, but it does not change the underlying esports outcome.
Recent pre-match analysis also leans towards Karmine as the more stable side, with a 2025 prediction piece calling for a 3-1 Karmine Corp result, although that was not the same split or stage and should be treated as context rather than a direct forecast.[1] That leaves the current price below parity understandable if traders are weighting Karmine’s recent head-to-head edge more heavily than Vitality’s isolated wins.
Methodology
This page reads LoL: Team Vitality vs Karmine Corp (BO3) - LEC Regular Season on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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