Total gaming revenue in Nevada fell 0.6% year-on-year to $1.01bn for the month of February.
Statistics released by the Nevada Gaming Control Board (NGCB) show two slot machine categories accounted for more than half of overall revenue.
Of these, one cent machines dropped a marginal 0.1% to $259m, while multi denomination slots generated revenue of $258.4m, a 1% growth.
Baccarat suffered the biggest fall in table game win: 25% year-on-year to $132.1m; roulette also suffered a 5% drop to $34m.
However, the game twenty one generated revenue of $96.3m, a 9% growth, while sports betting win enjoyed a significant 235% rise to $35.8m.
This was helped by an 11% year-on-year increase in overall sports betting handle, to $485m.
In February, the NGCB reported an 8% fall in the amount wagered on the Super Bowl ($145.9m). But this has barely dented a strong month indeed for Nevada sportsbooks.
Another segment enjoying a considerable yearly increase was craps, which saw revenue up 21% to $37.8m.