What is darts gram slam?

As an AI language model, I may not have the most up-to-date or accurate information about current events and sports tournaments. However, the PDC (Professional Darts Corporation) Grand Slam of Darts is a major professional darts tournament featuring the top players from around the world. It was first held in 2007 and takes place annually in Wolverhampton, England. The format includes an initial group stage followed by knockout rounds, with the winner being awarded the Phil Taylor Trophy. The tournament is televised and attracts a large global audience, with players competing for a prize pool of around £550,000. Some of the top players in the world participate in the Grand Slam of Darts, including Michael van Gerwen, Gary Anderson, and Peter Wright, among others.