I break betting odds news as it happens, so you’re never left behind when the market moves or a top offer lands.
- JoJo Siwa installed as early 3/1 favourite to win Celebrity Big Brother after full line-up leak
- Donna Preston and Danny Beard follow closely behind at 4/1
- Big names like Mickey Rourke and Jack P Shepherd feature in the leaked list
JoJo Siwa favourite to win 2025 Celebrity Big Brother
With the Celebrity Big Brother 2025 series just around the corner, the rumour mill is spinning faster than ever with reports of the full cast line-up surfaced online this week through The Sun.
While ITV has yet to confirm the names, American Reality star and singer JoJo Siwa emerges as the early front-runner to take the crown this year.
Siwa heads the betting at 3/1 which implies a 25% chance of winning the show with comedian Donna Preston and RuPaul’s Drag Race UK winner Danny Beard hot on her heels, both at 4/1.
| Celebrity Big Brother 2025 Winner | Odds* | Probability |
|---|---|---|
| JoJo Siwa | 3/1 | 25.0% |
| Danny Beard | 4/1 | 20.0% |
| Donna Preston | 4/1 | 20.0% |
| Trisha Goddard | 5/1 | 16.7% |
| Patsy Palmer | 5/1 | 16.7% |
*As betting sites currently aren't taking bets on this event, odds have been compiled as theoretical probability from an entertainment perspective only and come from an industry expert
What the expert says...
Jake Ashton - Entertainment Betting Expert - OLBG.com
Reported Line-Up Sparks Odds Movements
Among the rumoured contestants are a mix of household names and curveball entries with Hollywood actors and Soap Stars part of the cast.
From Mickey Rourke to Michael Fabricant, Angellica Bell to Trisha Goddard, this eclectic group promises drama, personality, and memorable moments.
This year's series is the second celebrity turn on ITV after David Potts won the 2024 edition of the show 12 months ago.
Master the Odds: Your Ultimate Guide to Betting on Big Brother UK 2026
Market Insight
The early backing for JoJo Siwa could reflect her strong fanbase, vibrant personality, and U.S. media presence which may resonate with younger UK viewers.
That said, Donna Preston’s popularity and Danny Beard’s reality TV experience make them serious threats.
What makes this season intriguing from a betting perspective is the diverse mix of celebrity types with musicians, athletes, actors, and even a politician in the rumoured line-up.
