Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Match Winner | 100% |
| Both Teams Slay a Dragon | 100% |
| Both Teams Slay Baron Nashor | 0% |
| Both Teams Destroy Inhibitors | 0% |
| Any Player Quadra Kill | 0% |
| Any Player Penta Kill | 0% |
| Odd/Even Total Kills | 0% |
Market context
Nongshim Red Force face BNK FEARX in a single-game Group Stage clash at the KeSPA Cup, with the match originally set for 7:15 AM ET on 20 July. The crowd-implied probability sits at 100% for a Red Force victory, suggesting the market views the outcome as virtually certain barring cancellation or a technical default.
Historically, 100% implied probabilities in League of Legends group stages often signal a mismatch in tier or a confirmed roster advantage, yet they carry unique settlement risk if the match is delayed beyond seven days or ends in a tie, triggering a 50-50 resolution. On Polymarket, this certainty appears as a decimal price near 1.00, whereas Kalshi would express it as a 100% probability with binary settlement, and Betfair or Smarkets would show odds of 1.01 with stake deductions. Fee structures diverge sharply here: Polymarket charges no platform fee on wins but incurs gas costs, while Kalshi applies a 1% cap on profits, and Betfair takes a commission on net winnings, altering the effective yield for identical risk profiles.
Traders should monitor official KeSPA Cup announcements for roster confirmations or schedule shifts, as any delay past 27 July voids the current pricing. A recent update from the tournament organiser confirmed the match remains on the calendar, but no start-time adjustment has been published since the initial 20 July slot [1]. Watch for pre-match stream checks or team social media posts confirming both squads are present; absence of either team before the 7:15 AM ET window could trigger the cancellation clause and reset the market to 50-50.
Methodology
This page compares LoL: Nongshim Red Force vs BNK FEARX (BO1) - KeSPA Cup Group Stage specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
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