Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 | 100% |
| Odd/Even Total Kills | 100% |
| Match Winner | 0% |
| Both Teams Slay Baron Nashor | 0% |
| Both Teams Destroy Inhibitors | 0% |
| Any Player Quadra Kill | 0% |
| Any Player Penta Kill | 0% |
Market context
RMD Gaming played Vivo Keyd Stars Academy in a one-map match in the Circuito Desafiante Regular Season, and the result recorded elsewhere was a 1-0 win for Vivo Keyd Stars Academy[1]. That matters because a **0% crowd-implied probability** on RMD implies the market is pricing the underdog as effectively dead, even though BO1 League of Legends can swing on draft, lane priority, and a single decisive fight rather than series depth. On Polymarket, that view is expressed as an implied probability; on Kalshi it is usually translated through contract prices; on Betfair and Smarkets, traders typically read it via decimal odds and net of exchange commission, so the same low-probability view can look slightly different after fees and liquidity.
For comparison, the same teams also met in April 2026, when RMD Gaming won 1-0 in another BO1 on the same competition circuit[2]. That split history is useful because it shows the matchup has not been one-sided across sample points, which is exactly the kind of context that can make a 0% screen look more extreme than the underlying competitive gap. In exchange markets, that distinction matters more when liquidity is thin: a low price on Polymarket can reflect sentiment and position limits, while Betfair or Smarkets may show a different number once commission and order-book depth are applied.
The main catalysts are simple but important: whether the match is actually completed before the settlement window closes, whether there is any official schedule change, and whether any administrative decision pushes it into the market’s 50-50 fallback. The market description says cancellation, a tie, or a delay of more than seven days without a winner all resolve to 50-50, so traders should watch organiser updates rather than just the in-game result. If a platform has broader KYC reach or different geographic access rules, that can also affect who can trade the contract and how quickly the price reprices around late schedule news.
Methodology
We read LoL: RMD Gaming vs Vivo Keyd Stars Academy (BO1) - Circuito Desafiante Regular Season 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
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
- 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. Kalshi 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.
Trade LoL: RMD Gaming vs Vivo Keyd Stars Academy (BO1) - C… on Kalshi Alternative
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