Big Brother Season 28 Winner — Odds & Probability
By Corbin King · Updated July 20, 2026
As of July 20, 2026, the prediction market implies a 17% chance of Dee Valladares on Polymarket, on $33.8K in traded volume.
Implied probability & market prediction
Market favorite
Dee Valladares — market favorite
Polymarket · $33.8K traded
17%
Implied
Live market
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W.E.T. Score
How much signal is behind this number?
The W.E.T. Score grades the evidence, not the outcome. Five measurable inputs — traded volume, news corroboration, cross-venue agreement, market coverage, and track-record depth — scored against how much verifiable signal sits behind the headline probability.
Scored from the July 20, 2026 snapshot · 41/100 · Developing Signal
| Component | Points | What the data says |
|---|---|---|
| Liquidity | 15/30 | $33.8K in matched volume across this event's markets. Log-scaled: thin books score near zero, $1M+ maxes the component. |
| News corroboration | 0/20 | No wire headlines matched this event at snapshot time — the price stands alone. |
| Cross-venue agreement | 8/20 | Priced on one venue only — no independent book to check the number against, so this component sits at a neutral 8/20. |
| Market coverage | 12/15 | 8 tracked markets on this event — more side markets and strikes mean more angles pricing the same story. |
| Track-record depth | 6/15 | 4 days of daily probability history on file. A longer tape shows how the price behaves, not just where it sits. |
The W.E.T. Score measures market microstructure — how much money, agreement, coverage, and corroboration sit behind a price. It is not a prediction of the outcome, not a rating of whether the favorite wins, and not trading advice: a Thin Signal market can still resolve YES, and a Prime Signal market can still resolve NO. Full weighting and worked examples in the methodology.
Key takeaways
- Prediction markets price Dee Valladares at 17% implied probability on Polymarket.
- $34K has traded across 17 markets on this event.
- This is implied probability from live trading as of Monday, July 20 — not a tip or a forecast of the result.
The prediction market prices Big Brother Season 28 Winner at 17% implied probability on Polymarket as of Monday, July 20. Here is the live market read.
What the prediction market is pricing
Across 17 tracked markets, $34K has changed hands on this event — light but tradable interest. Dee Valladares leads at 17%, a longshot, ahead of Drew Campbell at 15%. It currently trades on Polymarket; if it also lists on the other venue, the cross-venue gap becomes a second signal to watch.
How entertainment markets like this resolve
Entertainment markets resolve on a public result — an awards outcome, a box-office figure, a release. The price is what traders pay for each result before it’s known.
What could move it
Nominations, review embargoes and early tracking, release schedules, and audience buzz drive the moves. Because real money is on the line, the price reprices quickly around these catalysts — which is what makes 17% a live estimate rather than a settled call.
Reading the number
A contract at 17¢ implies a 17% chance the market resolves YES: a live, tradable estimate of probability, not a forecast or a tip from W.E.T. The figure above is a snapshot as of Monday, July 20; odds move continuously, so open Polymarket for the current line.
Track this and every Entertainment market on the live Event Dashboard, or browse all Entertainment odds & probability. For the mechanics, see the prediction markets guide.
Frequently asked questions
What are the odds for Big Brother Season 28 Winner?
As of Monday, July 20, Polymarket price Dee Valladares at 17% implied probability. Implied probability is the market's YES price read as a percentage; it moves continuously, so check the live venue for the current line.
What is the probability of Dee Valladares?
The prediction market implies a 17% chance of Dee Valladares on Polymarket as of Monday, July 20 — that is what traders are collectively pricing, not a forecast from W.E.T.
What is the difference between the Kalshi and Polymarket odds?
This event is currently listed on Polymarket. When an event trades on both Kalshi and Polymarket, W.E.T. shows the cross-venue divergence, because a gap on the same outcome can signal an edge or a difference in the fine print.
Are these odds a prediction of the outcome?
No. These are live prices from a prediction market, shown as implied probability — a reflection of what traders are collectively paying, not advice or a forecast from W.E.T. Prediction market trading involves risk of loss; always verify prices and rules on the venue.
Markets & sources
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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Odds via <a href="https://www.worldeventtrading.com/predictions/big-brother-season-28-winner-odds-2026-10-01?utm_source=wet-embed&utm_medium=attribution&utm_content=big-brother-season-28-winner-odds-2026-10-01">World Event Trading</a></p>W.E.T. is an information and data service — not a gambling operator. We take no bets and hold no funds. Nothing here is financial, legal, betting, or tax advice, or a prediction of the outcome, and prediction market trading involves risk of loss. Prediction markets may be restricted or illegal in your jurisdiction — check local law. 18+. See how we source and compute these odds in our methodology, or read the full disclaimer.
Watch this market move
Live odds, catalysts, and cross-venue divergence on Kalshi and Polymarket — then argue about what's priced in with the crowd.