Every summer, in mid-July, the American Century Championship (ACC) draws celebrities such as Justin Timberlake, Charles Barkley and Aaron Rodgers to golf for charity.

Now, in its 27th year, ACC’s VIP know the drill of signing their Vessel custom golf bags and encouraging their fans to bid on their bag to help raise funds for cancer research. This year, Vessel designed the best tournament bag yet, featuring a unique hexagon pattern on matte black material.

Here are the five best moments of ACC:

1. Mark Mulder defends his title.

St. Louis Cardinals baseball star took home the trophy for his second year in a row from American Century Investments. Since retiring from baseball, he took up golf as a hobby and it seems to be serving him well. Mulder won his first title at the 2015 ACC and won again this year!