Big Brother 28 Winner Odds: Who Will Win Big Brother?
Big Brother 28 has entered Week 6 with 12 houseguests remaining after Chuk Anyanwu was evicted 9–1, joining Ashley Trail, Rome Seymour, Jason De Puy, and Lyric Medeiros as the season’s five eliminated contestants. Live-feed reporting shows new Head of Household Yash Patel nominated Angela Murray, current market favorite Dee Valladares, and Haley Thogmartin for eviction. Prediction markets price Dee Valladares at 25.6% to win, ahead of Rick Devens at 22.5%, with — traded across tracked contracts. DeFi Rate aggregates live Big Brother 28 winner odds from Kalshi, Polymarket, Polymarket US, and Gemini where you can bet on who will win Big Brother. Feeds are updated hourly using volume-weighted average pricing (VWAP).
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Live Odds on Big Brother: Dee Valladares has a 25.6% Chance to Win
Current probabilities across platforms with liquidity indicators
DVDee Valladares
Vol —
Spread 1.5%
Agg
25.6%↑ +6.5%
U
27.0%
P
26.5%
G
26.5%
K
25.5%
RDRick Devens
Vol —
Spread 1.5%
Agg
22.5%↑ +8.0%
U
24.0%
P
23.5%
G
23.5%
K
22.5%
YPYash Patel
Vol —
Spread 4.0%
Agg
20.9%↑ +13.8%
U
24.0%
K
21.0%
P
20.0%
TBTaylor Brown
Vol —
Spread 2.0%
Agg
9.5%↑ +3.0%
U
11.0%
K
9.5%
P
9.5%
G
9.0%
DCDrew Campbell
Vol —
Spread 1.5%
Agg
8.5%↑ +1.8%
K
8.5%
U
8.0%
P
7.7%
G
7.0%
BPBarrett Pfeiffer
Vol —
Spread 1.6%
Agg
7.5%↑ +0.9%
G
8.5%
K
7.5%
U
7.0%
P
7.0%
MMMelody Morris
Vol —
Spread 1.5%
Agg
4.5%— +0.0%
U
6.0%
K
4.5%
P
4.5%
AMAngela Murray
Vol —
Spread 2.1%
Agg
2.5%— +0.0%
P
2.6%
U
1.0%
K
0.5%
HTHaley Thogmartin
Vol —
Spread 0.5%
Agg
0.9%↓ -1.7%
U
1.0%
P
0.9%
K
0.5%
LVLaTrice Verrett
Vol —
Spread 0.5%
Agg
0.5%↓ -2.6%
U
1.0%
P
0.5%
K
0.5%
KKKamu Kirk
Vol —
Spread 5.0%
Agg
0.5%↓ -15.5%
G
5.0%
U
1.0%
K
0.5%
P
0.1%
MAMallory Aurichio
Vol —
Spread 4.7%
Agg
0.4%↓ -4.7%
G
5.0%
U
2.0%
K
0.5%
P
0.4%
Big Brother 28 Winner Odds: Dee Valladares Probability Over Time
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Chart settings
Arbitrage Scanner
Current cross-venue opportunities with fee calculations
Pairs (Venue-to-Venue)
| Outcome | Venue Pair | Leg A (Buy) | Leg B (Sell) | Gross Spread | After Fees | Actionable | Trade Now |
|---|---|---|---|---|---|---|---|
KK Kamu Kirk |
Polymarket
→
Gemini | Buy @ P 0.1¢ | Sell @ G 5¢ | +4.90% | +4.88% |
Yes | |
MA Mallory Aurichio |
Polymarket
→
Gemini | Buy @ P 0.4¢ | Sell @ G 5¢ | +4.60% | +4.58% |
Yes | |
YP Yash Patel |
Polymarket
→
Polymarket US | Buy @ P 21.2¢ | Sell @ U 23¢ | +1.80% | +1.80% |
Yes | |
BP Barrett Pfeiffer |
Polymarket US
→
Gemini | Buy @ U 7¢ | Sell @ G 8¢ | +1.00% | +0.97% |
No | |
AM Angela Murray |
Polymarket US
→
Polymarket | Buy @ U 1¢ | Sell @ P 1.2¢ | +0.20% | +0.20% |
No | |
LV LaTrice Verrett |
Polymarket
→
Polymarket US | Buy @ P 0.9¢ | Sell @ U 1¢ | +0.10% | +0.10% |
No | |
MM Melody Morris |
Kalshi
→
Polymarket US | Buy @ K 5¢ | Sell @ U 5¢ | +0.00% | -0.07% |
No | |
HT Haley Thogmartin |
Kalshi
→
Polymarket US | Buy @ K 1¢ | Sell @ U 1¢ | +0.00% | -0.07% |
No | |
DC Drew Campbell |
Polymarket US
→
Kalshi | Buy @ U 8¢ | Sell @ K 8¢ | +0.00% | -0.08% |
No | |
TB Taylor Brown |
Kalshi
→
Polymarket US | Buy @ K 10¢ | Sell @ U 10¢ | +0.00% | -0.10% |
No | |
RD Rick Devens |
Kalshi
→
Polymarket US | Buy @ K 23¢ | Sell @ U 23¢ | +0.00% | -0.23% |
No | |
DV Dee Valladares |
Kalshi
→
Polymarket | Buy @ K 26¢ | Sell @ P 26¢ | +0.00% | -0.26% |
No |
Outcome Diff
| Outcome A | Outcome B | Venue | A Odds | B Odds | Diff | Strategy | Trade Now |
|---|---|---|---|---|---|---|---|
DV Dee Valladares |
AM Angela Murray |
Polymarket US | A 27.0% | B 1.0% | +26.00% | Buy spread | |
DV Dee Valladares |
HT Haley Thogmartin |
Polymarket US | A 27.0% | B 1.0% | +26.00% | Buy spread | |
DV Dee Valladares |
LV LaTrice Verrett |
Polymarket | A 26.5% | B 0.5% | +25.95% | Buy spread | |
DV Dee Valladares |
HT Haley Thogmartin |
Polymarket | A 26.5% | B 0.9% | +25.65% | Buy spread | |
DV Dee Valladares |
AM Angela Murray |
Kalshi | A 25.5% | B 0.5% | +25.00% | Buy spread | |
DV Dee Valladares |
HT Haley Thogmartin |
Kalshi | A 25.5% | B 0.5% | +25.00% | Buy spread | |
DV Dee Valladares |
LV LaTrice Verrett |
Kalshi | A 25.5% | B 0.5% | +25.00% | Buy spread | |
DV Dee Valladares |
MA Mallory Aurichio |
Polymarket US | A 27.0% | B 2.0% | +25.00% | Buy spread | |
DV Dee Valladares |
AM Angela Murray |
Polymarket | A 26.5% | B 2.6% | +23.95% | Buy spread | |
RD Rick Devens |
LV LaTrice Verrett |
Polymarket | A 23.5% | B 0.5% | +23.00% | Buy spread | |
RD Rick Devens |
AM Angela Murray |
Polymarket US | A 24.0% | B 1.0% | +23.00% | Buy spread | |
RD Rick Devens |
HT Haley Thogmartin |
Polymarket US | A 24.0% | B 1.0% | +23.00% | Buy spread | |
YP Yash Patel |
AM Angela Murray |
Polymarket US | A 24.0% | B 1.0% | +23.00% | Buy spread | |
YP Yash Patel |
HT Haley Thogmartin |
Polymarket US | A 24.0% | B 1.0% | +23.00% | Buy spread | |
RD Rick Devens |
HT Haley Thogmartin |
Polymarket | A 23.5% | B 0.9% | +22.70% | Buy spread | |
DV Dee Valladares |
MM Melody Morris |
Polymarket | A 26.5% | B 4.5% | +22.00% | Buy spread | |
RD Rick Devens |
AM Angela Murray |
Kalshi | A 22.5% | B 0.5% | +22.00% | Buy spread | |
RD Rick Devens |
HT Haley Thogmartin |
Kalshi | A 22.5% | B 0.5% | +22.00% | Buy spread | |
RD Rick Devens |
LV LaTrice Verrett |
Kalshi | A 22.5% | B 0.5% | +22.00% | Buy spread | |
RD Rick Devens |
MA Mallory Aurichio |
Polymarket US | A 24.0% | B 2.0% | +22.00% | Buy spread | |
YP Yash Patel |
MA Mallory Aurichio |
Polymarket US | A 24.0% | B 2.0% | +22.00% | Buy spread | |
DV Dee Valladares |
KK Kamu Kirk |
Gemini | A 26.5% | B 5.0% | +21.50% | Buy spread | |
DV Dee Valladares |
MA Mallory Aurichio |
Gemini | A 26.5% | B 5.0% | +21.50% | Buy spread | |
DV Dee Valladares |
MM Melody Morris |
Kalshi | A 25.5% | B 4.5% | +21.00% | Buy spread | |
DV Dee Valladares |
MM Melody Morris |
Polymarket US | A 27.0% | B 6.0% | +21.00% | Buy spread | |
RD Rick Devens |
AM Angela Murray |
Polymarket | A 23.5% | B 2.6% | +21.00% | Buy spread | |
YP Yash Patel |
AM Angela Murray |
Kalshi | A 21.0% | B 0.5% | +20.50% | Buy spread | |
YP Yash Patel |
HT Haley Thogmartin |
Kalshi | A 21.0% | B 0.5% | +20.50% | Buy spread | |
YP Yash Patel |
LV LaTrice Verrett |
Kalshi | A 21.0% | B 0.5% | +20.50% | Buy spread | |
DV Dee Valladares |
BP Barrett Pfeiffer |
Polymarket US | A 27.0% | B 7.0% | +20.00% | Buy spread |
After-fee spreads apply the configured taker-fee model per side. Depth/slippage is not modeled in this scanner.
Methodology & Data Mapping
How we aggregate, normalize, and map cross-platform data
Default: Volume-Weighted Average Price (VWAP)
Weights each mapped market by its reported 24H USD volume at snapshot time. If volume is unavailable, we fall back to a simple average for that snapshot.
Use the VWAP/Simple toggle above the chart to switch aggregation views.
Kalshi: Official API (best bid/ask + last + 24H volume/liquidity when available).
Polymarket: Market data via their API (token prices + best bid/ask + 24H volume/liquidity when available).
Polymarket US: Gateway market data (yes/no prices + best bid/ask + market stats for volume/open interest where available).
Gemini: Public Prediction Markets + ticker endpoints (best bid/ask + last + 24H USD volume when available).
Event data is updated hourly. Older history is downsampled.
Each event links one or more markets per provider. We normalize labels, map provider outcomes into a shared outcome list, and merge mapped markets where appropriate.
Cross-venue spread: Max–min difference across available venue probabilities for the same outcome.
Liquidity: Relative per-venue indicators based on provider liquidity fields (no depth/slippage modeling).
Arbitrage: Computed from best bid/ask when available (otherwise mid); after-fee spread applies the configured fee model only.