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.

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.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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.

Counter-Strike: G2 vs Legacy (BO5) … | Robinhoodpredictionmarkets 2026

Name: Counter-Strike: G2 vs Legacy (BO5) - FISSURE PLAYGROUND Playoffs
Start: 2026-09-12T15:05:30.000Z
End: 2026-09-13T15:00:00.000Z

Platform comparison

Platform	YES odds	NO odds	Fee	KYC	Settlement
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker)	73%	27%	0% (USDC on-chain)	No-KYC up to $1,500	USDC, auto via UMA oracle	Go to the live market →
Polymarket (direct) polymarket.com	73%	27%	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
O/U 3.5 Games	73%
Map 1 Winner	50%
Match Winner	50%
Map 3 Total Rounds: Over/Under 21.5	50%
Map 4 Total Rounds: Over/Under 21.5	50%
Map 4 Rounds Handicap: Legacy (-3.5) vs G2 (+3.5)	50%
Map 5 Rounds Handicap: Legacy (-3.5) vs G2 (+3.5)	50%
Map 5 Total Rounds: Over/Under 21.5	50%
Map 3 Winner	49%
Map 4 Winner	49%
Map 1 Total Rounds: Over/Under 21.5	49%
Map 2 Total Rounds: Over/Under 21.5	49%
Map 2 Winner	48%
O/U 4.5 Games	35%
Map Handicap: LGC (-1.5) vs G2 (+1.5)	34%
Map 2 Rounds Handicap: Legacy (-3.5) vs G2 (+3.5)	34%
Map 1 Rounds Handicap: Legacy (-3.5) vs G2 (+3.5)	33%
Map 3 Rounds Handicap: Legacy (-3.5) vs G2 (+3.5)	33%
Map Handicap: LGC (-2.5) vs G2 (+2.5)	16%

Market context

Market consensus: 73% chance of counter-strike: g2 vs legacy (bo5) - fissure playground playoffs. Prediction markets aggregate real capital to produce this probability signal. This market refers to the Counter-Strike Grand final match between G2 and Legacy in the FISSURE PLAYGROUND Playoffs, initially scheduled for September 13, 2026 at 5:00 AM ET. This…

Methodology

We read Counter-Strike: G2 vs Legacy (BO5) - FISSURE PLAYGROUND 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

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.
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.
Which platform supports Klarna/SOFORT?: Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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.

Alex ChenPrediction Market Analystand

Jordan LeeSports Prediction Reporter

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Counter-Strike: G2 vs Legacy (BO5) - FISSURE PLAYGROUND Playoffs

Platform comparison

Outcome probabilities

Market context

Methodology

Resolution & payout

FAQ

Trade Counter-Strike: G2 vs Legacy (BO5) - FISSURE PLAYGRO… on Robinhood Prediction Markets

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