We’re often asked why we don’t roll the greens. It’s a balancing act. The greens need to be firm, but not hard. If they were hard, then moisture and air (or more specifically the oxygen in the air) wouldn’t penetrate. This would result in poor root growth, which in turn would lead to the green being more susceptable to disease and wear.
As you can see from the photo, the greens are rolled, but only when the conditions are ideal. At other times, the weight of the mower is sufficient.