Product
Overlay
Definition
The shortfall between a tournament’s guaranteed prize pool and the total of the buy-ins actually received, which the poker room must add from its own funds. Positive expected value for the players in the field and a cost the room accepts to draw entries.
Key takeaways
- Overlay is the gap between a guaranteed prize pool and the buy-ins received, which the room pays.
- It is free equity for the field, so experienced players hunt for tournaments likely to overlay.
- Rooms set guarantees from forecast fields; regular large overlays signal thin liquidity.
- Overlay is a marketing cost, deliberate when launching a series or market and a forecasting failure otherwise.
Why it matters
Guaranteed prize pools are the poker room's main tool for filling tournaments, and the overlay is the price of the tool. A room advertises a tournament with a 100,000 guarantee; if entries produce only 80,000 in buy-ins, the room adds 20,000 and the prize pool is paid in full. For the players, that 20,000 is free equity: the same buy-in competes for a larger pool, and experienced players seek out tournaments likely to overlay for exactly that reason. For the room, an overlay is a marketing cost that is either a deliberate investment (a big guarantee to launch a series or a new market) or a forecasting failure.
The room's calculation is the expected field. Set the guarantee too low and it draws nobody; set it too high and the overlay eats the fees the tournament was meant to earn. Rooms forecast from past series, day and time, competing events on other networks and the promotional push behind the event, and adjust guarantees through a series as fields come in. Regular, large overlays on a network are read by the industry as a sign of thin liquidity, which is why they are tracked by players and commentators.
Overlay has a broader meaning in the same spirit: any promotion whose cost exceeds its intake, such as a leaderboard whose prizes exceed the rake it generated, is an overlay in the accounting sense, and poker operators manage a promotional budget of guaranteed overlays as part of their marketing spend.
Frequently asked questions
Why would a poker room guarantee a prize pool it might not cover?
Because a guarantee is what draws a field. Players enter a tournament for the size of the pool, and a room that will not commit to a figure fills fewer seats. The occasional overlay is the cost of the commitment.
Is an overlay good for players?
Yes. The prize pool is larger than the buy-ins that funded it, so every entrant is competing for more than they collectively paid. It is one of the few structurally positive-expectation situations in poker.
How do rooms avoid overlays?
By forecasting fields from past data, adjusting guarantees through a series, running satellites into big events, and promoting heavily around the events with the largest guarantees.