So the last few weeks has brought temperatures below freezing at night, almost every night. This means that many times over the past few weeks the greens have been frozen. Obviously this sucks for ball striking but that is understood. What really shocked my friends and I was the dramatic change in green speed and not the way that we expected.
The greens at my club are very nice and well maintained bent grass. There is just a small amount of zoiysa but you do not notice it at all if you play in the mornings (it only shows up in late afternoon). The greens usually stimp at 11 or so. We always play in the mornings on the weekend and even with morning dew on the greens, the speed is fast but consistent. We expected that the frozen greens would increase the speed as the ground/grass was harder and also has no dew on them when they are frozen by the time we are allowed to play (after frost delay).
Strangely the speed of the greens decreased quite a bit while frozen. This was not due to wind. My friends and I cannot figure this out as we remember last year where the green speed increased if they were frozen/almost frozen, not a decrease in speed. The decrease in speed seems to be on all holes and all kinds of putts (up and downhill). It is a significant distance and since we play there all the time it takes adjusting too. I know the easy answer is just to adjust to it and we will have to do that but I was just curious if anyone out there can answer why did the speed decrease when we thought and experienced an increase in speed last year under similar conditions? The greens are the same and no other outside factors have changed from last years comparison. The greens are maintained the same and cut the same as far as we can tell. Thanks.