Kalshi has Jason De Puy at 38¢ to walk out of the Big Brother 28 house this week. Rome Seymour is the 50¢ favorite on the same board because the whole house is telling the feeds Rome is the backdoor target. Melody Morris is the 12¢ afterthought. Everybody else is a penny.
That's a two-horse race with the field folded in, and the market has decided Rome is the horse. I think the second horse is the value — because the "obvious" backdoor target is exactly the guy who talks his way off the block, and when that happens the votes don't evaporate. They land on the person with no friends. Right now that's Jason.
The Trade
Market: Will Jason De Puy be eliminated from Big Brother Season 28 this week? (Kalshi · KXBIGBROTHERELIMINATION-26JUL23-JAS)
Position: Jason De Puy — YES
Entry: 38¢ (bid 37 / ask 38)
Implied probability: 38%
My read on true probability: 48–52%
Payoff at settle: ~2.6x your entry
Resolution: This week's live eviction — contract settles before Jul 24, 2026
This is a weekly eviction market. It settles the night the house votes somebody out. You are not trading the whole season here — you are trading one Thursday. That keeps the variance tight and the catalyst close, which is exactly the kind of short-fuse contract I want to be on when the crowd is anchored to a spoiler that hasn't happened yet.
The Setup
Rick Devens won Head of Household and then won the Power of Veto — full control of the week. He put up Jason De Puy, Melody Morris, and Lyric Medeiros, pulled Lyric with the veto, and dropped Rome Seymour in as the replacement. The plan Rick is selling the house: send Rome, the rival alliance's leader, out the backdoor.
That plan is the entire reason Rome is 50¢ and Jason is 38¢. The market is pricing the story the feeds are telling on Monday. But eviction night is Thursday, and Big Brother is a game where the three days between the veto meeting and the vote are where everything actually gets decided.
Here's the part the price is ignoring: Jason torched his own week. He blew up at his own nomination, got into it with Angela Murray — who sits inside the eight-person "Toolshed" bloc that controls the votes — and, on the feeds, called himself a "messy bitch." He is not in the Toolshed. He has no numbers. Rome at least leads an alliance that will fight for him. Strip away the "plan," and the guy with the worse standing in the house is Jason, not Rome.
The Edge
- The backdoor is a plan, not a result. Rome is 50¢ — a coin flip — for an eviction that requires the whole house to hold the line for three more days. Named backdoor targets survive at a real clip in this game because they campaign, and because houses love to keep a big, obvious target around as a shield. Every point of "Rome escapes" probability has to go somewhere. It goes to Jason.
- Jason has no cover. Rome has an alliance. Melody is quiet and non-threatening. Jason is the outsider who just picked a fight with a Toolshed member. When a house wobbles off its first plan, it defaults to the lowest-social-capital nominee — the one nobody will miss and nobody will avenge.
- The market is anchored to the spoiler, not the vote. Retail flow on reality-TV markets buys the Monday feed narrative and stops updating. The re-rate happens Wednesday night when the vote count firms up. At 38¢ you're getting paid to be early to a number that moves toward you as the week closes.
- The math is asymmetric. Rome (50¢) + Jason (38¢) is 88% of the block between two names. You're buying the discounted side of a two-man race, in a week where the "favorite" is a backdoor that hasn't actually landed yet.
Why 38¢ Is Cheap
If your read on Jason's true eviction probability is a coin flip — call it 50% — then YES at 38¢ is worth 50¢ in expected value per contract. That's a 12¢ edge on a 38¢ price, roughly a 32% expected return per unit of capital, on a contract that resolves in days.
You don't even need Jason to be the favorite. You just need the house to be less locked on Rome than a 50¢ price implies. Every Big Brother season is a graveyard of "obvious" boots who campaigned their way into someone else going home instead. At 38¢, the market is telling you that only happens 38% of the time. Watch a few seasons of feeds and that number is light.
Run it yourself: Expected Value Calculator for the edge, Probability Converter to turn 38¢ into the price you'd actually pay, Kelly for the size.
The Downside (Be Honest About It)
Three ways this position dies. All of them are real.
The backdoor holds. This is the base case the market is pricing. Rick keeps the house in line, Rome goes out the door Thursday, and Jason YES settles at 0¢. That's the 38¢ you're risking. No spin — the plan working is the single most likely outcome, which is exactly why this pays 2.6x instead of even money.
Melody becomes the compromise. If the house sours on evicting Rome but doesn't want to hand Jason a pass either, Melody (12¢) is the quiet third option nobody fights for. That's the scenario where you're right that Rome survives and still lose.
A twist or a feed swing before Thursday. Big Brother loves a mid-week power, a re-nomination, or a 48-hour house flip. Any of them can reset the board. That cuts both ways, but on a single-week contract it's live risk.
Sizing It
Kelly Criterion: a 50% read at a 38¢ price puts full-Kelly around 19% of bankroll. Do not run full Kelly on a reality-TV eviction. The feeds are noisy and one conversation can flip the whole vote, so this is a quarter-to-half-Kelly position — call it 5–9% of bankroll.
On a $1,000 bankroll, quarter-Kelly is roughly $50 — at 38¢ a contract, that's about 130 YES contracts. Hits, and $50 becomes ~$130. Misses, and you eat the $50. That ratio is what quarter-Kelly is built to absorb.
Use limit orders. The book is 37/38 with real size and 10,000+ contracts of open interest — no reason to reach for the offer when you can sit at 37¢.
How to Take the Position
Kalshi — KXBIGBROTHERELIMINATION-26JUL23-JAS, currently 38¢ YES. This is the deepest of the 16 houseguest contracts this week outside of Rome, with volume actually trading through it. The liquidity is there to get filled and to get out if the feeds move against you before Thursday.
Polymarket runs its own weekly Big Brother eviction market, but the houseguest-level pricing is thinner and the US geo-block makes Kalshi the cleaner venue for this one. This is a Kalshi trade.
The Bottom Line
The house is telling you Rome. The price is telling you Rome. But a 50¢ backdoor is a plan that still has three days and a live vote to survive — and when these plans crack, the person who leaves is the one with no alliance and a fresh enemy. That's Jason.
YES on Jason De Puy to be evicted at 38¢. Quarter-Kelly sizing. Limit orders. Hold through Thursday's vote.
Prices captured July 21, 2026 — markets move fast, and Big Brother feeds move faster. Re-check before entering. Trade responsibly. Past market analysis does not guarantee future results. This is analysis from one of The 7 Oracles, not financial advice. Position sizing and risk management are your responsibility.