Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| Map 1 Winner | 0% YES | 100% NO |
| Map 2 Winner | 100% YES | 0% NO |
| O/U 2.5 Games | 100% YES | 0% NO |
| Map Handicap: ex-RUBY (-1.5) vs Ursa (+1.5) | 0% YES | 100% NO |
| Odd/Even Total Kills | 0% YES | 100% NO |
| Odd/Even Total Rounds | 0% YES | 100% NO |
Market context
The BC Game Masters Europe Series #2 Group Stage will feature a Counter-Strike best-of-three match between ex-RUBY and Ursa on 25 May 2026 at 07:00 ET. Ex-RUBY, a roster reshuffle of former professional players, competes against Ursa, an emerging European squad. The match determines advancement positioning within the group stage format. Settlement occurs at 17:00 UTC on the scheduled date, with a seven-day grace period for delayed matches before resolution defaults to 50-50 if no winner is determined.
The 0% implied probability currently displayed reflects limited liquidity or early-stage pricing rather than consensus conviction. Comparable European regional qualifiers have historically seen significant line movement once team rosters are confirmed and recent scrim results surface. Kalshi's strict binary settlement rules would treat any forfeit as a decisive outcome, whereas Betfair's exchange model allows lay positions that hedge against cancellation risk—a structural difference that affects how traders price fixture uncertainty. Polymarket's fee structure (2% taker fee) versus Smarkets' 5% commission influences whether small-edge traders participate at all.
Traders should monitor team announcements regarding player availability and any schedule changes from the tournament organiser. Recent European CS:GO regional events have experienced delays due to visa processing and equipment logistics. The match's position as Round 4 in group play means both teams will have completed three prior matches, providing form data that typically triggers significant probability shifts 48 hours before fixture time. Decimal odds on Betfair and Smarkets will diverge from Polymarket's percentage display once meaningful volume enters the market.
Methodology
This page compares Counter-Strike: ex-RUBY vs Ursa (BO3) - BC Game Masters Europe Series #2 Group Stage specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, 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
- Is this market available outside the US?
- PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- What does it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Counter-Strike: ex-RUBY vs Ursa (BO3) - BC Game Mast… on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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