Every season of Big Brother raises the question, ‘Who will win?’ From the get-go, viewers and fans are debating who has the best chance of winning. Prediction markets like Kalshi offer a different perspective.
Instead of relying on viewer opinion, prediction markets like Kalshi aggregate the views of traders. Traders react to the developments, alliance shifts, live feeds, and more. As new information emerges, the implied probability of the contestants can rise or fall. While a prediction isn’t guaranteed to be true, there are several factors that shape the frontrunner.
Dee Valladares, former Survivor 45 winner, is the current frontrunner. With Dee taking an early lead, she has been sitting firmly on top with her implied probability increasing steadily over time. That said, her current implied probability is 27% on Kalshi, which isn’t a huge percentage overall, so there’s still every chance another contestant can overtake her.
Rick Devens is following behind in second place, with Barrett Pfeiffer in third place. That said, more recently, traders have been buying Yes contracts for Rick and Yash Patel (who’s currently in fourth position), which is interesting. While it’s not shifted their positions hugely yet, it shows movement.
Culture predictions are influenced by several factors, with a core focus on how the public perceives the contestants. Let’s take a look at what could potentially change the race:
Prediction market apps view Big Brother as one of the most dynamic reality television shows, with the contestants' chance of winning shifting significantly throughout their time on the show. Analysts typically emphasize contestants who build and maintain strong social connections, have alliances, and avoid becoming a target as having more chances of winning. On the other hand, contestants who dominate early tend to become a target, with others perceiving them as having a strategy. As contestants view them as threats, their chances of winning reduce significantly.
Want to get involved with this market? Check out the current positionings, which were correct at the time of writing:
| Who Will Win Big Brother Season 28? | Chance | Yes Contract | No Contract |
|---|---|---|---|
| Dee Valadares | 27% | $0.27 | $0.74 |
| Rick Devens | 18% | $0.18 | $0.83 |
| Barrett Pfeiffer | 8% | $0.08 | $0.93 |
| Yash Patel | 8% | $0.08 | $0.93 |
| Kamu Kirk | 7% | $0.07 | $0.94 |
| Lyric Medeiros | 6% | $0.06 | $0.95 |
Prediction markets like Kalshi provide traders with a valuable snapshot of who’s most likely to win Big Brother season 28, based on a range of variables. That said, the reality television show is highly unpredictable, with the frontrunners being at risk of changing within just one episode. One alliance shift, or the wrong social move, can be all it takes to take down the favorite. If you want to track the movements or place your prediction at Kalshi, all you need to do is tap the on-page banners.

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