Dota 2: OG vs BetBoom Team (BO1) - BLAST Slam Group Stage

Platform comparison

Active sub-markets

Market context

OG face BetBoom Team in a best-of-one group stage match at the BLAST Slam tournament on 28 May at 4:00 AM ET. The 1% implied probability reflects OG's substantial favourability in this fixture, though no material developments have shifted the matchup dynamics in the past 48 hours. Both squads remain in their standard competitive configurations, with no roster changes or injury announcements affecting either side's availability for this encounter.

OG's positioning at 99% reflects their historical dominance in competitive Dota 2 and their track record against CIS-region opposition. The two-time International champions have consistently outperformed teams from BetBoom's competitive tier, particularly in best-of-one formats where preparation depth and individual skill variance carry outsized weight. BetBoom, whilst a credible regional competitor, lacks the international pedigree and consistent top-tier results that would typically narrow such a gap in odds.

The settlement window closes at 14:00 UTC on 28 May, providing a six-hour buffer beyond the scheduled 4:00 AM ET start. Traders should monitor BLAST's official schedule for any last-minute postponements or format changes, though such disruptions remain uncommon for established tournament organisers. The primary risk to this market lies in technical issues causing forfeiture or match cancellation rather than competitive uncertainty—conditions that would trigger the 50-50 resolution clause.

Methodology

We track Dota 2: OG vs BetBoom Team (BO1) - BLAST Slam Group Stage on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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?

On Prediction Today, 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.

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 it cost to trade on Prediction Today?

Zero. Prediction Today routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Today 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.