Get some fungicide down asap.

I'm doing scotts disease ex followed 2 weeks later by bayer fungicide. Have been applying for a month already and will continue until August.

unfortunately after you have a fungus problem it usually never abates completely, the spores stay in the soil, I know it sucks, but if you practice cutting higher, not watering late at night etc etc etc then you can keep it at bay and use Preventative meaures as Joe is and I did, and will continue to do till it's out of my hands ..

Fungus is best prevented rather than treated. So you'll want to start early next year, maybe mid-April and keep it going through the summer. Headway G is great but very expensive so I would suggest looking into purchasing propiconazole and azoxystrobin in gallon jugs to use. They will pay themselves off in 3-4 apps(vs Headway) and then you'll have fungicide to use for many years.

Have you looked into scarifying and aerating your lawn?

it looks to me that you are getting grass thatching. which could explain your fungal problem as the dead material not allowing the circulation of air and providing ideal conditions for this growth of fungus