Culture

Big Brother Season 28 Winner

Kalshi vs Polymarket, compared live. Resolves Oct 1, 2026 ·

Prediction market prices reflect trader sentiment, not a guaranteed outcome. Nothing on this page is financial advice or a promise of any return.

Dee Valladares

Kalshi
Chance of Yes1.0%
Bid 0.0% / Ask 100.0%
View on Kalshi →
Polymarket
Chance of Yes0.0%
Bid 0.0% / Ask 0.1%
View on Polymarket →
Best available price: Polymarket (+99.9 pts)
Last checked just now · refreshes automatically every 30s
KalshiPolymarket
0%20%40%Jul 14Oct 2
Oct 2, 2026Kalshi1.0%Polymarket0.1%

Rick Devens

Kalshi
Chance of Yes99.0%
Bid 0.0% / Ask 100.0%
View on Kalshi →
Polymarket
Chance of Yes100.0%
Bid 99.9% / Ask 100.0%
View on Polymarket →
Best available price: tied - Kalshi and Polymarket are both asking 100.0%
Last checked just now · refreshes automatically every 30s
KalshiPolymarket
0%50%100%Jul 10Oct 2
Oct 2, 2026Kalshi99.0%Polymarket54.1%

Yash Patel

Kalshi
Chance of Yes1.0%
Bid 0.0% / Ask 100.0%
View on Kalshi →
Polymarket
Chance of Yes0.0%
Bid 0.0% / Ask 0.1%
View on Polymarket →
Best available price: Polymarket (+99.9 pts)
Last checked just now · refreshes automatically every 30s
KalshiPolymarket
0%18%35%Jul 8Oct 2
Oct 2, 2026Kalshi1.0%Polymarket0.1%

Kamu Kirk

Kalshi
Chance of Yes1.0%
Bid 0.0% / Ask 100.0%
View on Kalshi →
Polymarket
Chance of Yes0.0%
Bid 0.0% / Ask 0.1%
View on Polymarket →
Best available price: Polymarket (+99.9 pts)
Last checked just now · refreshes automatically every 30s
KalshiPolymarket
0%23%45%Jul 8Oct 2
Oct 2, 2026Kalshi1.0%Polymarket0.1%

Barrett Pfeiffer

Kalshi
Chance of Yes1.0%
Bid 0.0% / Ask 100.0%
View on Kalshi →
Polymarket
Chance of Yes0.0%
Bid 0.0% / Ask 0.1%
View on Polymarket →
Best available price: Polymarket (+99.9 pts)
Last checked just now · refreshes automatically every 30s
KalshiPolymarket
0%15%30%Jul 8Oct 2
Oct 2, 2026Kalshi1.0%Polymarket0.2%
  • Big Brother 28 premiered on CBS on July 9, 2026 with 14 first-time contestants including an MMA fighter and a RuPaul's Drag Race alum.
  • Subtitled 'Time Trip,' the 28th edition of the programme also features three surprise crossover/return guests, Survivor winner Dee Valladares, Survivor alum Rick Devens, and former Big Brother contestant Angela Murray.
  • Valladares has been an early favorite on the show, shooting to the top spot on Kalshi in the early weeks, leading second-place favorite Rick Devens.
  • The Time Trip format has scrambled alliances more than a usual season, with a time-travel theme and time-based rooms that houseguests have to navigate.
  • Prediction markets have become a genuine spoiler problem for reality TV this season - Kalshi's contestant pricing has, in past seasons, tipped off eventual winners and eliminations.
By Owain Flanders · Updated by hand Aug 3, 2026
  • Resolves to whichever houseguest is named the winner on the live finale, currently set for a 90-minute special on Thursday, Oct 1, 2026 - the last one standing takes home the $750,000 grand prize.
  • Kalshi's own wording: "If [houseguest] are officially declared the winner of Big Brother Season 28, then the market resolves to Yes." Kalshi and Polymarket both list every houseguest as a separate Yes/No contract rather than one multi-choice market, so each name's price is its own independent read on the field, not a slice of a fixed 100%.
  • Only the 5 real contenders by current price are tracked here out of 17 total houseguests - the rest are sitting at a nominal 1-2% on both platforms with no realistic path to the money.
  • Thursdays
    Live eviction episodes air weekly on CBS - each one moves both the winner market and that week's standalone eviction market
  • 2026-10-01
    90-minute live finale on CBS - the winner market resolves