Sports betting revenue in Indiana dropped in August from US$25.4m a year ago to $23.5m.
Handle also remained fairly stable, rising from $238m to $238.1m.
Sports betting tax in Indiana remained flat at $2.2m for August compared to a year ago.
Month-on-month, revenue rose from $23.3m in July with handle also increasing from $203.8m.
Ahead of the NFL season resuming at the start of September, baseball was the most popular sport for betting in August, with $69.4m placed in wagers.
