l und ' s ▁Top ▁Hat ▁Ball , ▁the ▁organization ' s ▁primary ▁fund ra ising ▁event , ▁began ▁in ▁ 1 9 9 6 ▁and ▁is ▁held ▁each ▁February ▁in ▁Chicago . ▁The ▁Mark l und ▁Ann ual ▁G olf ▁Classic , ▁began ▁in ▁ 1 9 8 2 , ▁and ▁pairs ▁cele brit ies ▁with ▁golf ers ▁at ▁the ▁Indian ▁L akes ▁Country ▁Club ▁in ▁Blo oming dale , ▁Illinois . ▁Run , ▁Walk ▁& ▁Roll ▁for ▁Mark l und , ▁a ▁new ▁ 5 K / 1 ▁mile ▁walk / run , ▁will ▁debut ▁in ▁October , ▁ 2 0 1 3 , ▁in ▁Gene va , ▁Illinois . ▁Vari ous ▁Third ▁Party ▁events ▁are ▁held ▁throughout ▁the ▁year , ▁organized ▁by ▁don ors , ▁volunte ers ▁and / or ▁parents ▁in ▁support ▁of ▁Mark l und . ▁Si xty - five ▁percent ▁of ▁re venue ▁is ▁supplied ▁primarily ▁by ▁State ▁of ▁Illinois ▁Department ▁of ▁Public ▁Health . ▁E igh teen ▁percent ▁of ▁re venue ▁comes ▁from ▁the ▁Day ▁School , ▁while ▁six teen ▁percent ▁of ▁re venue ▁is ▁supported ▁by ▁don ations ▁from ▁individuals , ▁found ations ▁and ▁corpor ations . ▁Re venue ▁covers ▁operating ▁costs ▁as ▁well ▁as ▁the ▁$ 1 7 , 0 0 0 ▁annual ▁gap ▁for ▁each ▁person ▁Mark l und ▁serves , ▁the ▁difference ▁between ▁what ▁the ▁State ▁of ▁Illinois ▁funds ▁and ▁Mark l und ' s ▁standard ▁of ▁care . ▁ ▁Life - en rich ment ▁activities ▁and ▁events ▁▁ ▁The ▁Mi racle