PolymarketSportsOpenResolved BetBoom Team

Dota 2: BetBoom Team vs OG (BO3) - BLAST Slam Group C

99.9¢

last trade · resolved 2026-09-30

Open on Polymarket (opens in a new tab)Compare across venues

24h volume$1.9M
Open interest$1.8M
Lifetime volume$1.9M

Quick answers

Where is "Dota 2: BetBoom Team vs OG (BO3) - BLAST Slam Group C" cheaper right now?
Polymarket last trade 99.9¢. No matched twin on another venue, so there is no cross-venue price to compare.
When does "Dota 2: BetBoom Team vs OG (BO3) - BLAST Slam Group C" settle?
Already settled: resolved BetBoom Team on 2026-09-30.

Odds history

Implied odds over timebid/askmid100%50%0%Sep 24 10:00 UTCSep 30 14:29 UTC

188 archived bid/ask quotes for "Dota 2: BetBoom Team vs OG (BO3) - BLAST Slam Group C" on Polymarket, 2026-09-24 to 2026-09-30.

How this market settles

hard deadline October 14, 2026

Pays Yes when
This market refers to the Dota 2 match between BetBoom Team and OG in the BLAST Slam Group C, initially scheduled for September 30, 2026 at 6:00 AM ET.
Who decides
If the match ends in a forfeit, disqualification, or walkover (team withdraws before the start and the other wins automatically), this market will resolve to 50-50. The resolution source for this market will be official information from…
Venue’s stated source
https://www.dotabuff.com
When
Closes 2026-09-30.
Read the full rules Polymarket publishes

This market refers to the Dota 2 match between BetBoom Team and OG in the BLAST Slam Group C, initially scheduled for September 30, 2026 at 6:00 AM ET. This market will resolve to "BetBoom Team" if BetBoom Team win the match against OG. This market will resolve to "OG" if OG win the match against BetBoom Team. If the match is canceled (not played at all) or ends in a tie, this market will resolve to 50-50. If the match is postponed, it must be rescheduled to a start time on or before October 14, 2026 at 11:59 PM ET (14 calendar days after the originally scheduled start of September 30, 2026 at 6:00 AM ET). If, by that deadline, the most recently announced rescheduled start time is on or before the deadline, this market resolves based on the result of the match as played. Otherwise, this market resolves 50-50, regardless of whether the match is subsequently played. If the match begins but is not completed, and one team wins due to the opponent's forfeiture, disqualification, or walkover, this market will resolve to the team who wins. If the match ends in a forfeit, disqualification, or walkover (team withdraws before the start and the other wins automatically), this market will resolve to 50-50. The resolution source for this market will be official information from https://www.dotabuff.com. However, if https://www.dotabuff.com has not published final results within 2 hours after the event’s conclusion, a consensus of credible reporting may be used instead including video evidence. In cases where a team’s listed name includes minor discrepancies from the resolution source, this market will resolve based on the underlying real-world match rather than exact name matching. Recognizable abbreviations, alternate or erroneous spellings, sponsor tags, affiliate or academy designations, regional identifiers, and minor formatting differences will be treated as referring to the same team, provided the intended team can be clearly and uniquely identified within the relevant competition. If a listed team name has no reasonable connection to any participating team, or if it matches or could reasonably refer to another team in the same competition such that the intended team cannot be unambiguously determined, this market will resolve 50-50.

Resolution

Resolved BetBoom Team on 2026-09-30.

What this bet really costs you

  • On $100 at 99¢ you pay $0.07 in fees on Kalshi

    0.07¢ per contract · 101 contracts

  • On $100 at 99¢ you pay $0.05 in fees on Polymarket US

    0.05¢ per contract · 101 contracts

Polymarket rate read from the catalog for sports_fees_v3 (19,255 markets in a sample of 20,000 rows drawn from 21,646,462 in the archive). Kalshi's rate is its published general schedule; the PDF has been rate-limiting fetches, so it is documented rather than verified.

Exchange-side taker fees per each venue's published formula (rate × contracts × price × (1 − price)); contracts = stake ÷ price, rounded down to whole contracts. Fees peak at 50¢ and shrink toward the extremes. Most quoted cross-venue “arbs” are negative-EV after these fees; the taker-fee breakeven on a Kalshi/Polymarket pair is roughly 3.5–4¢.

Free channel: gaps at the next rebuild. Members: the instant one matching your watches, in your DM.

Polymarket moved 8¢ on US recession in 2026? in the last 60 minutes (12¢ → 20¢). Kalshi hasn't caught up — still sitting at 14¢.Get alerts (opens in a new tab)

Members get every gap, fork and lag as the scan finds it, 35–55 minutes after the hour.

Data: Polymarket id 0x771e3679aca4c7311315d46d771607cd3d3a4a2e25e6586285e633c90d31027d · ← All tracked markets

Gaps close in hours.

The free channel posts at the next rebuild; members' DMs arrive as the scan finds it.