Dota 2: Grind Back vs Carstensz (BO3) - The International Southeast Asia Closed Qualifier Playoffs

Platform comparison

Active sub-markets

Market context

Grind Back are playing Carstensz in a best-of-three lower-bracket match in the Southeast Asia closed qualifier playoffs for The International. The market is already priced at 100% Yes, but that figure is only useful if the match is treated as live and completed; in these esports markets, a no-contest, cancellation, or a delay beyond the settlement window can still flip the result to 50-50 under the rules here.

The recent head-to-head is one of the clearest comparables: Grind Back beat Carstensz 2-0 in a qualifier match played on 21 June, and GosuGamers also records a 2-1 Carstensz win in a separate June qualifier meeting, so the pairing has already produced tight, swingy results rather than a stable edge for one side. Strafe’s team data also shows Grind Back with three wins in their last five, while Carstensz had four, which helps explain why platform pricing can differ between a simple crowd-implied probability feed and books that express the same view as decimal odds with varying vig and fees.

For traders, the key catalysts are procedural rather than tactical: whether the bracket runs on schedule, whether the match page is updated as completed before the settlement deadline, and whether any rescheduling pushes it outside the seven-day rule. On Polymarket the market is typically shown as an implied probability, while Kalshi, Betfair and Smarkets usually surface decimal prices or exchange-style prices with commission, so the same 100% crowd view can still imply slightly different executable returns after fees and, in some cases, KYC and jurisdiction limits.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Dota 2: Grind Back vs Carstensz (BO3) - The International Southeast Asia Closed Qualifier 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 quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

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). Kalshi Alternative UK routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Kalshi Alternative UK 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 Kalshi Alternative UK?

Zero. Kalshi Alternative UK 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, Kalshi Alternative UK triggers a quick verification flow that finishes in minutes.