MINNEAPOLIS (WCCO) — At three hours a game, some would complain baseball is already a long sport. But this week, the Metrodome is home to what could be the longest game ever.

The group PDH Baseball (Pitching Hitting Defense Baseball) started a marathon baseball game to raise $150,000 for the Masonic Cancer Center at the University of Minnesota. The game is the kickoff to their fundraiser.

The players, mostly ages 16 to 18 years old, will sleep in the visitor’s locker room when they’re not playing. Some of the players will play 9 innings of the game, others will rotate in every three hours.

When the game is over Thursday morning, the players expect to have played some 300 innings.

Herb Gibson is in charge of the group. He says the organization aims to excite the boys about playing baseball and being good neighbors and responsible citizens.

The longest game, according to the Guinness Book of World Records is 60 hours, 11 minutes and 32 seconds. The and are keeping track of the game. Once it concludes, they will send their score books, a recording of the game and other documentation to Guinness and will find out if they qualify as world record holders.

Fans are encouraged to stop by the Metrodome before Thursday to cheer on the guys. You can enter through Gate D. There is no fee to watch. You can donate to the Masonic Cancer Center on behalf of PHD Baseball by visiting their website.