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 2 Winner | 100% |
| Match Winner | 100% |
| O/U 2.5 Games | 100% |
| Map 1 Total Rounds: Over/Under 21.5 | 100% |
| Map 1 Total Rounds: Over/Under 22.5 | 100% |
| Map 1 Total Rounds: Over/Under 20.5 | 100% |
| Map 2 Total Rounds: Over/Under 22.5 | 100% |
| Map 2 Total Rounds: Over/Under 20.5 | 100% |
| Map 2 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Rounds Handicap: G2 Esports (-2.5) vs Sentinels (+2.5) | 100% |
| Map 3 Rounds Handicap: G2 Esports (-2.5) vs Sentinels (+2.5) | 100% |
| Map 3 Total Rounds: Over/Under 20.5 | 100% |
| Map 1 Total Rounds: Over/Under 19.5 | 100% |
| Map 1 Total Rounds: Over/Under 23.5 | 100% |
| Map 3 Rounds Handicap: G2 Esports (-3.5) vs Sentinels (+3.5) | 100% |
| Map 3 Total Rounds: Over/Under 19.5 | 100% |
| Map 2 Total Rounds: Over/Under 19.5 | 100% |
| Map 2 Total Rounds: Over/Under 18.5 | 100% |
| Map 3 Rounds Handicap: G2 Esports (-4.5) vs Sentinels (+4.5) | 100% |
| Map 3 Total Rounds: Over/Under 18.5 | 100% |
| Map 3 Total Rounds: Over/Under 16.5 | 100% |
| Map 3 Total Rounds: Over/Under 17.5 | 100% |
| Map 1 Winner | 0% |
| Map Handicap: G2 (-1.5) vs Sentinels (+1.5) | 0% |
| Map 1 Rounds Handicap: G2 Esports (-2.5) vs Sentinels (+2.5) | 0% |
| Map 3 Total Rounds: Over/Under 22.5 | 0% |
| Map 3 Total Rounds: Over/Under 21.5 | 0% |
| Map 1 Rounds Handicap: G2 Esports (-3.5) vs Sentinels (+3.5) | 0% |
| Map Handicap: SEN (-1.5) vs G2 Esports (+1.5) | 0% |
| Map 1 Rounds Handicap: Sentinels (-2.5) vs G2 Esports (+2.5) | 0% |
| Map 1 Rounds Handicap: Sentinels (-3.5) vs G2 Esports (+3.5) | 0% |
| Map 1 Total Rounds: Over/Under 24.5 | 0% |
| Map 1 Total Rounds: Over/Under 25.5 | 0% |
| Map 1 Total Rounds: Over/Under 26.5 | 0% |
| Map 2 Rounds Handicap: G2 Esports (-4.5) vs Sentinels (+4.5) | 0% |
| Map 2 Rounds Handicap: G2 Esports (-3.5) vs Sentinels (+3.5) | 0% |
| Map 2 Rounds Handicap: G2 Esports (-6.5) vs Sentinels (+6.5) | 0% |
| Map 2 Rounds Handicap: G2 Esports (-7.5) vs Sentinels (+7.5) | 0% |
| Map 2 Rounds Handicap: G2 Esports (-5.5) vs Sentinels (+5.5) | 0% |
| Map 2 Total Rounds: Over/Under 24.5 | 0% |
| Map 2 Total Rounds: Over/Under 23.5 | 0% |
| Map 2 Total Rounds: Over/Under 25.5 | 0% |
| Map 3 Rounds Handicap: G2 Esports (-5.5) vs Sentinels (+5.5) | 0% |
| Map 3 Rounds Handicap: G2 Esports (-6.5) vs Sentinels (+6.5) | 0% |
| Map 3 Rounds Handicap: G2 Esports (-8.5) vs Sentinels (+8.5) | 0% |
| Map 3 Rounds Handicap: G2 Esports (-7.5) vs Sentinels (+7.5) | 0% |
| Map 3 Total Rounds: Over/Under 23.5 | 0% |
| Map 3 Total Rounds: Over/Under 24.5 | 0% |
| Map 3 Total Rounds: Over/Under 25.5 | 0% |
Market context
G2 Esports meet Sentinels in a VCT Americas Stage 2 Group Omega best-of-three, a fixture with enough head-to-head history to make a 0% crowd price stand out. Across 12 previous meetings, G2 have won 8 and Sentinels 4, and recent match pages still show G2 as the narrower pre-match favourite; Strafe’s community split is 68.7% for G2 and 31.3% for Sentinels, while other match trackers also list G2 as the side with the stronger record in the matchup.[3][9] That sort of history matters on Polymarket because the market settles to the match winner, whereas Betfair and Smarkets would quote the same view through decimal odds that also embed fees in different ways; Kalshi instead uses a contract-style price that maps directly to implied probability, with its own KYC and access rules depending on jurisdiction.
The main catalysts are straightforward: official confirmation the series is played on schedule, the live map score if the match reaches a deciding map, and any late tournament rescheduling inside the seven-day settlement window. BO3 trackers placed the match on 2 August and noted the Group Omega context, with G2 and Sentinels both arriving from earlier stage results that kept them in the upper part of the standings.[4][13] Recent bracket coverage also underlined that the two teams had already been active in Stage 2, so any delay, remake, or format change would matter more than usual for a market with a zero crowd price and a binary winner settlement.[4][19]
Methodology
This page compares Valorant: G2 Esports vs Sentinels (BO3) - VCT Americas Stage 2 Group Omega 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
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
- 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. Robinhood Prediction Markets 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.
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