Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
65% | 35% | 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 | 65% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 28% |
| Both Teams Destroy Inhibitors | 27% |
| Any Player Quadra Kill | 27% |
| Any Player Penta Kill | 25% |
| Match Winner | 23% |
Market context
Dplus KIA meet T1 in a single best-of-one group-stage game, and the market’s 25% yes price implies a clear underdog read for Dplus KIA. In practical terms, that is closer to a one-in-four shot than a coin flip, so the current line is only consistent if traders expect T1 to be materially stronger on the day. Comparable bookmaker pricing from earlier meetings between the sides has also leaned towards T1, with odds around 1.22 to 1.43 for T1 and 2.69 to 4.16 for Dplus KIA, reinforcing the same directional bias.[1][2][6]
For a prediction market like this, the biggest structural risk is not competitive strength but contract mechanics: if the game is delayed, cancelled, or left without a completed winner beyond the seven-day window, it can settle at 50-50 rather than on the original matchup outcome. That makes the live schedule, broadcast start time, and any tournament-side rescheduling announcement the key catalysts. Traders should watch for confirmation that the BO1 actually begins on time and is played to completion, because a walkover or unfinished map can still change the resolution path materially even when one team is favoured.[1][2]
Because settlement is in USDC, the market is exposed to broader crypto venue conditions as well as esports news. If the event sees heavier activity from larger wallets, that can move the implied price quickly even without any new team information, so it is worth checking whether the line is being driven by tournament updates or by general risk appetite across BTC and ETH markets.
Methodology
This page reads LoL: Dplus KIA vs T1 (BO1) - KeSPA Cup Group Stage 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.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- 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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