Okay don't panic, this isn't one of our greens but it could be if we hadn't taken preventative measures.  This is pink snow mold and attacks bent grass/ poa annua putting greens in the fall and winter months.  It doesn't have to have snow cover to infect the turf but does more damage under snow, it thrives in cool wet weather.  We applied fungicides preventatively two weeks ago to our greens, it is costly so our  fairways and tees were left untreated, but should be fine and have time to grow in before spring.  Anyway just wanted you to be aware of this disease, and know that our greens have been protected.