PolymarketCheck availabilityNo KYC2% feeVerified resolution dataFairly calibratedCurrent implied probabilityPerson D 50%Leader of 41 outcomes
Market quality
83 / 100
High quality24h Volume
$243.5
Liquidity
$50.8K
High liquidityBid / Ask
14.5% / 14.8%
Spread
2.1%
Tight spread7d Change
+8.9%
Market data
Updated 14 minutes ago
Jul 9, 26, 2:17 AMOct 1, 26, 11:59 PM
Trends
Paper funds only — no real moneyNot financial advice
Selected outcome
Person D50%
Compare venues· Dee Valladares
Ranked by market quality, then liquidity and 24h volume| Venue | Quality | Probability | vs reference | 24h Vol | Liq | Freshness | |
|---|---|---|---|---|---|---|---|
| PolymarketThis pageBest overall | High | 17% | 0pt | $243.5 | $50.8K | 14 minutes ago | |
 KalshiMost active72% match · auto | Medium | 17% | 0pt | $71.2K | $734.9K | 14 minutes ago | Open → |
Also available on Kalshi
Big Brother Season 28 · Winner
2.0%5mo
17%
14%
11%
+14 more outcomes
73 • Medium qualityWide spreadHigh liquidity
Total Vol$962.7K
24h Vol$71.2K
KALSHIRules
This market will resolve to the contestant who wins Big Brother season 28.
- If Big Brother season 28 concludes without a winner being declared, or if Big Brother season 28 has otherwise not concluded by December 31, 2026, 11:59PM ET this market will resolve to "Other".
- In the case of a tie, this market will resolve in favor of the listed contestant whose name comes first in alphabetical order.
- This market will remain open until the conclusion of the season.
- The resolution source for this market will be the official broadcast of the final episode of Big Brother season 28.
Probabilities may differ due to different market structures, fees, and participant pools.
Large trades
$3.1k94.0%KALSHIRick Devens — No2d ago
KALSHIRick Devens — No2d ago$2.0k98.0%KALSHIYash Patel — No7d ago
KALSHIYash Patel — No7d ago$1.2k92.0%POLYMARKETWill Ashley Trail win Big Brother season 28? — NoHyperlong9d ago
POLYMARKETWill Ashley Trail win Big Brother season 28? — NoHyperlong9d agoVolume trend
$244Jul 913d of dataJul 21
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MANIFOLD MARKETS
MANIFOLD MARKETS
Big Brother Season 28: 3rd Place
$474.1Person D: 50%POLYMARKET
POLYMARKETBig Brother Season 28: 2nd Place
$308.9Person D: 50%POLYMARKET
POLYMARKET
Rules
This market will resolve to the contestant who wins Big Brother season 28.
- If Big Brother season 28 concludes without a winner being declared, or if Big Brother season 28 has otherwise not concluded by December 31, 2026, 11:59PM ET this market will resolve to "Other".
- In the case of a tie, this market will resolve in favor of the listed contestant whose name comes first in alphabetical order.
- This market will remain open until the conclusion of the season.
- The resolution source for this market will be the official broadcast of the final episode of Big Brother season 28.