Caesars Sportsbook: The William Hill Acquisition That Made Caesars a Sports-Betting Player
Caesars paid $4B in 2021 to acquire William Hill — the British sports-betting company. The US operations became Caesars Sportsbook, which is now the #4 US sports book. The strategy and what went right (and wrong).
Caesars Entertainment acquired UK-listed William Hill plc for £2.9B (~$4B) in April 2021. The deal gave Caesars an immediate US sports-betting platform via William Hill US (which had operated retail sportsbooks for years and online sportsbooks in NJ since 2018). Caesars rebranded the US operations as Caesars Sportsbook in August 2021. ManningCast / Manning brothers ad campaign followed. Today Caesars Sportsbook is the #4 US sportsbook with ~7-9% market share. Deep Caesars Rewards integration is the differentiator.
Caesars was late to US sports betting. While DraftKings and FanDuel had been operating since 2018, Caesars's in-house product was small. The 2021 William Hill acquisition was a $4B catch-up move.
Why Caesars needed William Hill
In early 2021, Caesars had:
- A small in-house sportsbook brand (CZR Sports)
- Limited online presence (NJ only)
- No technology platform mature enough to compete with DraftKings/FanDuel
The competition was already established:
- DraftKings: 18+ states, public company, $20B+ market cap
- FanDuel: 12+ states, growing fast under Flutter ownership
- BetMGM: launched 2018, growing in casino-loyalty markets
Caesars needed either to build (slow, expensive) or buy. They bought.
The William Hill deal
William Hill was a UK gambling company founded in 1934. By 2021 it operated:
- 1,400+ UK retail betting shops
- William Hill US (retail sportsbooks at most major US casinos under licensing)
- Online sportsbooks in multiple US states
The US business was the strategic asset. Caesars paid £2.9B (~$4B) for the entire company in April 2021, then sold the UK retail and international businesses to 888 Holdings for ~$3B in September 2021. Net cost to Caesars: ~$1B for the US business.
The August 2021 rebrand
Caesars Sportsbook launched August 2021 with a massive ad campaign featuring Peyton Manning and Eli Manning. The "Caesars Sportsbook" brand replaced the William Hill brand at all US locations.
The launch included:
- $300 deposit-match bonus (one of the largest in industry)
- "Risk-free first bet" up to $1,500
- Aggressive promotional spending (~$1B in 2021-22 marketing)
By Q4 2021 Caesars was making meaningful market share gains.
The Caesars Rewards integration
The strategic pitch for Caesars Sportsbook is the loyalty integration. Sports bets placed on Caesars Sportsbook count toward Caesars Rewards tier credits 1:1.
For a Caesars Diamond regular: every sports bet you place on Caesars Sportsbook builds toward your Diamond status. Combined with in-person play, this lowers the threshold to maintain Diamond.
For a casual sports bettor with no Caesars Rewards relationship: the welcome bonuses are competitive but the loyalty value is lower than for existing Caesars regulars.
Where Caesars Sportsbook lands today
In 2026:
Caesars hasn't reached the projected #2-3 position they targeted at launch but they are profitably the #4 operator and growing.
What's distinctive
Three things:
- Caesars Rewards integration. Strongest casino-loyalty + sports-betting connection in the US (along with BetMGM/MGM Rewards).
- Brick-and-mortar presence. Caesars Sportsbook operates retail sportsbooks at every Caesars-network US casino. Combined retail + online presence is the deepest in the industry.
- Marketing recall. The Manning brothers campaign and aggressive 2021-22 promotional spending built brand recognition even where market share is moderate.
For Caesars Rewards regulars, Caesars Sportsbook is the obvious choice. The loyalty integration is real, the welcome bonuses are competitive, and the retail presence at properties you visit is convenient. For non-Caesars-network sports bettors, FanDuel or DraftKings still have the edge.
For our broader sports betting take: DraftKings vs FanDuel, BetMGM.
Topics
- caesars-sportsbook
- william-hill
- sports-betting