Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
52% | 48% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
52% | 48% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Both Teams Slay a Dragon | 52% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 48% |
| Both Teams Destroy Inhibitors | 48% |
| Any Player Quadra Kill | 48% |
| Any Player Penta Kill | 48% |
| Match Winner | 14% |
Market context
KT Rolster and Gen.G are scheduled to meet in a best-of-one at the KeSPA Cup group stage, and the market’s 33% yes price implies KT is a clear underdog. On a platform like Polymarket, that probability is the core quote; on Kalshi, Betfair or Smarkets, the same matchup is usually expressed as decimal odds, so the equivalent move is whether the line shortens or drifts rather than whether the raw percentage changes. The practical difference matters because exchange-style books also layer in fees and market access constraints, while KYC availability and jurisdiction rules can limit who is able to trade the same event across venues.
For context, a single-map League of Legends line is much noisier than a series because one draft, one early fight or one objective swing can decide the outcome. In comparable short-format esports markets, favourites can still carry only modest implied probabilities when team quality is close or when the map is isolated from the broader head-to-head record. A 33% price therefore reads less as a vote on season-long strength and more as a snapshot of one-game volatility, especially where rosters, side selection and patch adaptation can matter more than reputation.
The main catalysts are pre-match roster confirmation, any late schedule changes, and whether the game is actually played on time, because a cancellation, tie or delay beyond seven days would force a 50-50 settlement under the market rules. Traders on platform-comparison sites will also watch for whether the event is listed consistently across venues, since exchange liquidity, fee treatment and regional access can affect how quickly a new development moves the price. If a pre-match report or official KeSPA Cup update changes the expected line-up or start time, that is the sort of announcement most likely to reprice the market.
Methodology
This page compares LoL: KT Rolster vs Gen.G (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 Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
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.
- 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.
- 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. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
Trade LoL: KT Rolster vs Gen.G (BO1) - KeSPA Cup Group Stage on Robinhood Prediction Markets
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