Slippage Rate in Hotel RFPs (Plain English Definition + Examples)

Definition

Slippage rate is the percentage of contracted block rooms that go unsold — calculated as (contracted block minus actual pickup) ÷ contracted block × 100. It is the inverse of pickup rate.

In European MICE sourcing, slippage rate sits inside a broader workflow that includes the brief, the longlist, the shortlist, the contract negotiation, and the post-event reconciliation. Understanding it in isolation is not enough — what matters is how it interacts with the other levers a planner can pull. The definition above is the textbook version; the sections below explain how it actually behaves in real RFPs.

Why Slippage Rate matters

Slippage is the hotel's exposure metric and the planner's attrition risk. Hotels factor expected slippage into their pricing — a planner with a 20% slippage history will see worse rates than one at 5%. Tracking your team's historical slippage rate by event type is the cheapest negotiation lever you have: walk into the next RFP with 'our last 4 events ran at 4% slippage' and you'll get better rates.

Example

Contracted 200 rooms. Pickup 168 = 84%. Slippage = 32 rooms = 16%. If attrition allowance is 20%, no fee. If allowance is 10%, planner pays attrition on 12 rooms × 2 nights × ARR.

Where Slippage Rate appears in contracts

Slippage isn't a contract term per se — pickup and attrition are. But your historical slippage rate is the data you carry into every negotiation.

Related terms

Deeper reading