Counter-Strike: 1WIN vs Butterfly (BO3) - NODWIN Clutch Series Playoffs

Platform comparison

Market context

1WIN’s BO3 against Butterfly in the NODWIN Clutch Series Playoffs is trading close to a coin flip, with the market at 50% and no clear separation from the broader live pricing picture. That is notably tighter than the bookmaker-style pricing seen on prior comparable meetings, where 1WIN opened around 1.40–1.41 against Butterfly’s 2.70–2.78 in July, implying roughly a 71% chance for 1WIN before Butterfly won 2-1. [8] [2]

That earlier upset matters because it shows the matchup has been more competitive than a simple favourite-longshot narrative suggests. Butterfly are also not an unknown quantity in this bracket: Liquipedia lists them as already through to the playoffs with a 1-0 record, and the same tournament has been running in a single-elimination BO3 format, which increases variance and makes one misread veto or one poor map pick more consequential. [7] [3]

For traders, the key catalysts are whether the scheduled fixture actually starts on time, whether the bracket remains intact, and whether any late schedule changes appear in tournament coverage or live streams. The market description makes settlement sensitive to cancellation, a tie, or a delay beyond seven days, so any postponement would matter as much as the result itself; at the time of writing, the match is also being shown as live or newly listed across event pages, which is the main operational risk to monitor. [1] [5] [3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Counter-Strike: 1WIN vs Butterfly (BO3) - NODWIN Clutch Series Playoffs across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

UK Frequently Asked Questions

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 UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.

What are the best prediction markets for UK traders in 2026?

For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.