What is Churn Rate in iGaming? Formula and Definition
Player churn rate is the share of active players who show no activity in the next period. Casinos and sportsbooks have no cancel button, so each operator must define churn itself.
Player churn rate is the share of players active in a base period who have no qualifying activity in the following period. Churn in a casino or sportsbook is inferred from inactivity. The account stays open, so the operator must define what counts as activity and how long silence counts as loss.
Formula
- Churn rate = players active in the base period and inactive in the observation period ÷ players active in the base period
- Retention rate = 1 − churn rate
Write three choices down: the activity event (a session, a bet or a deposit), the base period and the inactivity window. Merchie and Ernst, in a study on data from a Belgian online gambling operator, counted a player as churned after 35 days without a session, sports bet or deposit.
Example. 10,000 players were active in June. 2,800 of them have no activity in the next 30 days. Churn rate is 28% and retention rate is 72%.
How operators use churn rate
Retention teams track churn by cohort, product, acquisition source and value tier. Churn after the first deposit can differ from churn after six months, so a single blended rate hides the problem. Cohort tables show at which age each group is lost. See cohort analysis in iGaming.
A threshold rule only acts after the player has gone. Models score players while they are active, using recency, frequency, deposits and message engagement, so an offer or a fix can arrive earlier. The full method is in player churn in iGaming.
Churn rate also feeds value models. A player LTV estimate divides monthly NGR by the monthly churn rate.
Players lost past the threshold become the audience for reactivation.
Safer gambling limits
A churn score is a commercial signal. Marketing and new bonus offers stop where strong indicators of harm are identified. Self-excluded players, players on a time-out and flagged players never enter a retention audience.
Common mistakes
- No explicit threshold. Reports then compare different things.
- Counting players who were never active in the base period.
- Reading a seasonal pause as loss. Sportsbook players may leave when a league ends and return when it restarts.
- Using one threshold for daily and monthly players.
- Reading churn from a campaign period without a control group.
Related terms
Retention rate, reactivation rate and the Lifecycle Assessment for a review of where players drop out.
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Order a diagnosticFrequently asked questions
How many days of inactivity make a player churned?
The operator chooses the threshold from its own data. One academic study of a Belgian operator used 35 days. Copy the structure, an explicit activity event and an explicit threshold, and not the number.
What is the difference between churn rate and retention rate?
They add up to 100% for the same base and period. Churn rate is the share lost. Retention rate is the share that stayed.
Is a dormant player the same as a churned player?
Reactivation rate defines a dormant player as one with no deposit for a set number of days. Churn uses whichever activity event you chose. Report one term for the lost group and keep it fixed. Bringing dormant players back is the task of reactivation.
Should self-excluded players count as churn?
Report them separately. They leave the marketing audience whatever the churn score says.