Brett Morris said: I found this article in the turf library which detailed the speeds for the 1978 Open which were 9.7 on Sunday. Fast forward to today estimating 13 - 14 and we've seen a 25 - 30% increase in speed in 35 years.
Using your numbers - that would be closer to a 30-40 percent increase. You cant really use a percentage in this case. its like if the temperature goes from 100 to 110 you cant really claim there is a 10 percent increase in temperature. The difference between 9.7 and 14 is night and day, trying to put a percentage, like 30% on it does not do it any justice. The percentage does nothing to convey the actual magnitude of the difference.