Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
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 Total Rounds: Over/Under 21.5 | 100% |
| Map 3 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Total Rounds: Over/Under 24.5 | 100% |
| Map 2 Winner | 0% |
| Map Handicap: BTF (-1.5) vs ex-RUSTEC (+1.5) | 0% |
| Map Handicap: ex-RUSTEC (-1.5) vs Butterfly (+1.5) | 0% |
| Map 1 Total Rounds: Over/Under 24.5 | 0% |
| Map 1 Rounds Handicap: ex-RUSTEC (-6.5) vs Butterfly (+6.5) | 0% |
| Map 2 Rounds Handicap: Butterfly (-3.5) vs ex-RUSTEC (+3.5) | 0% |
| Map 2 Rounds Handicap: Butterfly (-9.5) vs ex-RUSTEC (+9.5) | 0% |
| Map 2 Total Rounds: Over/Under 30.5 | 0% |
| Map 3 Rounds Handicap: Butterfly (-3.5) vs ex-RUSTEC (+3.5) | 0% |
| Map 3 Rounds Handicap: ex-RUSTEC (-3.5) vs Butterfly (+3.5) | 0% |
| Map 3 Rounds Handicap: ex-RUSTEC (-6.5) vs Butterfly (+6.5) | 0% |
| Map 3 Total Rounds: Over/Under 24.5 | 0% |
| Map 3 Total Rounds: Over/Under 27.5 | 0% |
Market context
The Butterfly–ex-RUSTEC quarter-final is being priced as a one-sided match, with the contract showing **100% YES** while the best available sportsbook-style prices still leave room for a small upset chance. On BO3.gg, Butterfly were roughly **1.35** to win outright, with ex-RUSTEC around **3.80**, which implies a market view closer to the mid-70s than a true certainty[1]. By contrast, CS2Observer’s model put Butterfly at **52%**, while its bookmaker snapshot showed Butterfly at **1.65** and ex-RUSTEC at **2.1**, a narrower gap than the prediction market suggests[13]. Strafe’s user vote was even more concentrated, with **100%** of picks on Butterfly[5].
Historical and comparable pricing suggests the current contract is vulnerable to overconfidence rather than a clean read of the underlying teams. Polymarket’s own event page described Butterfly as the stronger side on recent form, citing **four wins in their last five matches** and a higher HLTV ranking of about **#73** versus ex-RUSTEC near **#96**[2]. That is consistent with a favourite, but not with a literal 100% outcome, especially in a BO3 where map vetoes can compress or widen gaps quickly. BO3.gg’s map markets also point to some path for ex-RUSTEC, with Butterfly only at **1.2** on a +1.5 map handicap and ex-RUSTEC also offered at **1.2** on the same line[1].
The main catalysts are straightforward: whether the quarter-final is fully completed before the settlement window closes, and whether any scheduling change pushes it into a void or 50-50 outcome. Live pages from multiple trackers show the match as already underway or in progress, which reduces cancellation risk but increases dependence on a full BO3 finish[4][6]. Traders should watch for official bracket updates from NODWIN and whether the series continues without interruption, because the market rules resolve to **50-50** if the match is not played, ends level, or is delayed beyond seven days without a winner[2]. In that sense, the sharper risk is not a routine upset, but an administrative edge case that could invalidate the apparent near-certainty.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
- 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: Butterfly vs ex-RUSTEC (BO3) - NODWI… on Best Prediction Markets
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