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 |
|---|---|
| Match Winner | 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% |
Market context
7REX face RMD Gaming in a single-game League of Legends match in Circuito Desafiante’s regular season, and the market’s 100% YES crowd price implies a near-certain view that 7REX will win. That reading is much more direct on Polymarket, which expresses the outcome as an implied probability, than on Betfair or Smarkets, where traders usually think in decimal prices and must mentally convert the quote into win chance; Kalshi’s display is also probability-based, but its settlement rules and user access differ by venue and jurisdiction. Earlier comparable meetings matter here: the pair played in April 2026, when 7REX beat RMD Gaming 1-0, and live-odds pages around that match showed 7REX as the shorter-priced side, with 7REX trading around 1.72 versus 2.08 for RMD Gaming on one snapshot. [2][4][5][8]
For traders, the main catalysts are confirmation that the fixture actually starts, whether the event remains a BO1, and any scheduling changes before the settlement window closes; if it is postponed beyond seven days or abandoned, this market is designed to resolve 50-50 rather than to a team winner. RMD Gaming’s recent match pages show mixed but often weaker pricing against stronger domestic opposition, including losses to paiN Gaming Academy and INTZ in July, while 7REX’s own July results include wins over RMD Gaming and RED Academy, which helps explain why the current book is effectively pinned. The practical comparison across platforms is that Polymarket and Kalshi let users trade the probability directly, whereas Betfair and Smarkets usually attract bettors who compare after-fee decimal odds and must factor in market commission, account verification and local KYC availability before size can be placed. [4][9][10][11][12][13][14]
Methodology
We read LoL: 7REX vs RMD Gaming (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
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.
- 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.
Trade LoL: 7REX vs RMD Gaming (BO1) - Circuito Desafiante … on Kalshi Alternative
Live order book, 0% fees, USDC settlement in seconds.
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