The restaurant raised $22,085 all For The Kids during the first annual "El Jefe's FTK" event.
The fundraiser begins at 8 a.m. and runs until 4 a.m. the following morning.
All THON committee applications are due by 5 p.m. on Thursday, September 15.
A Four Diamonds child will sing "God Bless America" during the 7th inning stretch.
Season ticket holders can donate their own tickets or purchase a set of four or more tickets to give to a Four Diamonds family for the Central Michigan game.
Applications must be submitted by 5 p.m. on Thursday, August 25.