In December, Delaware Park took $10.7m in sports wagers, while Dover Downs accepted $3.1m and Harrington Raceway took $2.1m in bets.
By comparison, Delaware Park took $8.1m in sports wagers in January, with Dover Downs taking $2.1m in bets and Harrington Raceway accepting $1.6m.
In December, there were 352,037 wagers placed, while 227,328 wagers were placed in January.
Looking closer at January, $10.2m was won back by customers; the resulting $1.6m in generated revenue was a $900,000 fall in comparison to the previous month.
Since sports wagering was legalised within the state, Delaware Park has accepted $98.9m in wagers and the three tracks combined have generated revenue of $11.8m.