Turf recovery after a large event is completely predicated on mother nature during the week of the event. If she brings a lot of rain, the spectator areas will takes month to recover via seed and/or sod. If its a dry week, a majority of the spectator areas will be non visible within a month. Even greens, tees, and fairway stressed to the max will recover in a week because of less mowing and rolling.
When I was at Colonial, we actually closed for 5 days right after the event-no down time for the staff. We aerified all playing surfaces, spectator areas, took ropes down, installed fans and outside contractors made a huge push on getting stands and tents off property. The tournaments that I had a hand in never saw weather issues. Since then, they have had some rainy events. Because of that, sod and bermudagrass recover went well into late summer.