Got an email this morning, "You could win $5, $10, $50 OFF your bill when you spend $10 or more." Dine in and try your luck 10/26 - 11/5.
I never dine in at Red Robins but I thought I would try ordering online and got $10 off my $10.50 cheeseburger! Not sure if they meant to let you do this but there's no harm in trying what discount you get. You don't have to go to the payment section to see what reward amount you got. Only catch is you have to use up the whole reward amount and you may have to spend the $50 for peeps at the office.