STAMFORD — Bobby Valentine invited about 60 of his friends for an unofficial opening of his new downtown venue last weekend to watch the Belmont Stakes.

Gamblers are now placing bets on horse races from 32 racetracks, Greyhound tracks and Jai Alai courts at Valentine’s Atlantic Street establishment.

Winners, the off-track betting portion of the new Bobby V’s restaurant and sports bar, opened this week on the second floor of the impressive 25,000-square-foot businesses.

“It’s crazy. That’s one way of describing it,” Valentine said Friday of the restaurant. “It’s big.”

The opening of the restaurant and bar has been delayed until next week because of adjustments needed to fire sprinklers and a fire door.

“I’d rather have it done right than done quickly,” said Ted Taylor, president of Sportech Venues, a New Haven betting firm that has partnered with Valentine on the venture.

The establishment, which seats between 650 to 700 people and has 230 television monitors, is the 16th OTB venture for Sportech, which is the state’s only OTB betting licensee. It is the second partnership with Valentine after opening a similar venue in Windsor Locks in early 2014.

Taylor said patrons of Winners need to be 21 years old, but the rest of the business is family oriented.

Executive Chef Jordan Stein said the food at the new restaurant will be very different from the offerings at Bobby V’s old place on Main Street that closed in April.

“What we have done is taken bar food and elevated it to the next level, using first-class ingredients and our ice cream is being made by an artisan ice cream maker,” Stein said.;