Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) 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 |
|---|---|
| Map 1 Winner | 100% |
| Match Winner | 100% |
| O/U 2.5 Games | 100% |
| Map 1 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Rounds Handicap: INOX Division (-3.5) vs BASEMENT BOYS (+3.5) | 100% |
| Map 1 Total Rounds: Over/Under 24.5 | 100% |
| Map 3 Total Rounds: Over/Under 21.5 | 90% |
| Map 3 Total Rounds: Over/Under 18.5 | 90% |
| Map 3 Total Rounds: Over/Under 27.5 | 48% |
| Map 3 Rounds Handicap: INOX Division (-3.5) vs BASEMENT BOYS (+3.5) | 10% |
| Map 3 Rounds Handicap: INOX Division (-6.5) vs BASEMENT BOYS (+6.5) | 10% |
| Map 3 Total Rounds: Over/Under 24.5 | 10% |
| Map 3 Rounds Handicap: INOX Division (-9.5) vs BASEMENT BOYS (+9.5) | 10% |
| Map 2 Winner | 0% |
| Map Handicap: INOX (-1.5) vs BASEMENT BOYS (+1.5) | 0% |
| Map 2 Total Rounds: Over/Under 21.5 | 0% |
| Map 1 Rounds Handicap: INOX Division (-3.5) vs BASEMENT BOYS (+3.5) | 0% |
| Map 1 Rounds Handicap: INOX Division (-6.5) vs BASEMENT BOYS (+6.5) | 0% |
| Map 1 Total Rounds: Over/Under 30.5 | 0% |
| Map Handicap: BMB (-1.5) vs INOX Division (+1.5) | 0% |
| Map 2 Rounds Handicap: INOX Division (-6.5) vs BASEMENT BOYS (+6.5) | 0% |
| Map 2 Total Rounds: Over/Under 24.5 | 0% |
| Map 2 Rounds Handicap: INOX Division (-9.5) vs BASEMENT BOYS (+9.5) | 0% |
Market context
BASEMENT BOYS’ semifinal against INOX Division sits in a short, open Cup #3 playoff bracket that ran from 14–16 August, with the fixture listed for 16 August and the surrounding playoff rounds already reporting earlier results and rescheduled start times across the same day[4][9]. The market’s 100% crowd-implied price reads more like a statement that the match is expected to be played and the favourite is heavily backed than a settled competitive edge, especially in a small-format, single-elimination CS2 event where one map swing can change the entire path to the final[4][8].
For comparison across books, Polymarket-style markets show the result as an implied probability, while Betfair and Smarkets present decimal odds that need converting before they are comparable, and fee treatment also differs materially: Polymarket is typically lower-cost and often operates without KYC, whereas Betfair and Smarkets require identity checks and apply commission on winnings or trades[13]. That matters here because a 100% prediction-market price can still sit beside non-zero decimal odds on exchange books if liquidity is thin, if traders are paying commission, or if a very short-lived fixture is being repriced after schedule movement. The main catalysts are straightforward: confirm the semifinal actually starts before the settlement window closes, watch for any official delay or bracket re-ordering, and note that a postponed match only counts if it is reset to begin by 30 August; otherwise cancellation or a tie would force a 50-50 resolution under the market rules[2][9].
Methodology
We read Counter-Strike: BASEMENT BOYS vs INOX Division (BO3) - ESL Challenger League Europe Cup #3 Playoffs 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
- 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 Counter-Strike: BASEMENT BOYS vs INOX Division (BO3)… on Robinhood Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
Open live market →