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 |
|---|---|
| Game 1 Winner | 100% |
| Game 2 Winner | 100% |
| Match Winner | 100% |
| Both Teams Slay a Dragon | 100% |
| Odd/Even Total Kills | 100% |
| Game Handicap: NS.EA (-1.5) vs KT Rolster Challengers (+1.5) | 100% |
| 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 Destroy Inhibitors | 10% |
| Both Teams Slay Baron Nashor | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| Odd/Even Total Kills | 1% |
| Both Teams Slay Baron Nashor | 1% |
| Both Teams Slay a Dragon | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| O/U 2.5 Games | 0% |
| Game Handicap: KT.C (-1.5) vs Nongshim Esports Academy (+1.5) | 0% |
| Both Teams Destroy Inhibitors | 0% |
Market context
Nongshim Esports Academy and KT Rolster Challengers are scheduled for a best-of-three in the LCK Challengers League Rounds 3–4 Challenge Group, and the market is effectively a binary read on who takes the series rather than whether the event exists. Public match listings place the game on 7 August 2026, with all major esports books treating it as an online series in Korea; if the broadcast or lobby start slips, resolution will still depend on the actual winner, provided the match is played within the market’s settlement window.[4][5]
Historical results give KT Rolster Challengers a clear edge in the longer run, but not an overwhelming one in any single meeting. Strafe’s head-to-head record shows KT leading 20–13 across 33 prior matches, while Tips.gg lists 17 KT wins to 10 for Nongshim in 27 tracked LoL meetings, underscoring that this is a familiar matchup with a meaningful sample size.[4][15] That history helps explain why a 100% crowd-implied probability on one side should be read cautiously: in contest markets, near-certainty prices often reflect thin liquidity, stale inputs, or a strong consensus that can reverse quickly if the official line-up or schedule changes.
For traders comparing venues, Polymarket typically expresses the market as implied probability, while Kalshi, Betfair and Smarkets quote decimal-style prices, so the same view can look different depending on format and fees. The practical catalyst is the official match status: confirmed start time, roster posts, and whether the LCK CL schedule keeps this BO3 in the Challenge Group slot; if organisers reshuffle fixtures, the relevant book only resolves once a winner is recorded, not when a match is merely announced.[4][17] KYC access also varies by platform, so cross-book arbitrage is limited by geography and verification even when the pricing gap is obvious.
Methodology
We read LoL: Nongshim Esports Academy vs KT Rolster Challengers (BO3) - LCK Challengers League Rounds 3-4 Challenge Group from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
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
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- 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.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- 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.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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