Colorado’s sports betting market keeps setting new records while the state’s tax take continues to underwhelm, forcing gambling regulators to offer insights into how math works.

On Monday, the Colorado Department of Revenue’s Division of Gaming announced that the state’s licensed sportsbooks handled $210.7m in wagers in the month of October, a new record but only a 1.5% increase from September (which had grown 61% from August), suggesting the Broncos’ ineptitude may be taking its toll on bettors’ interest.

The state’s betting revenue hit a record $17.4m in October, more than four times the $4.2m generated in September. Over $16.7m of October’s sum was generated online, although overly generous bonus offers lowered the online ‘net sports betting proceeds’ to slightly less than $9m.

The state’s share of October’s revenue totaled $824,700, also a new record and a significant improvement over the piddling $70k the state collected in September (when online operators reported negative revenue due to an NFL welcome bonus frenzy).