GREENWOOD VILLAGE, COLO. – Red Robin Gourmet Burgers Inc., operator or franchisor of 265 casual-dining restaurants, posted a 62-percent increase in earnings as revenues climbed 23 percent to $143.1 million.

Red Robin’s net income was 8 million or 48 cents per diluted share, for the 16-week period ending April 17, compared with $4.9 million, or 30 cents, for the previous first quarter.

Comparable-restaurant sales rose 5.7 percent at company-owned branches, reflecting a 2.8-percent increase in guest counts. Franchisees’ same-store sales increased 7.2 percent in the United States and 3.9 percent in Canada.