Table 1. Athletic events, type of mathematical function, equations and R values.

Event	Regression Type	Equation **	R2*
Men’s 100m	Inverse	Y = b0 + (b1/t)	.659
Women’s 100m	Cubic	Y = b0 + b3t3	.902
Men’s 400m	S	Y = e(bo + b1/t)	.907
Women’s 400m	S	Y = e(bo + b1/t)	.843
Men’s Long Jump	Cubic	Y = b0 + b3t3	.777
Women’s Long Jump	Inverse	Y = b0 + (b1/t)	.894
Men’s High Jump	Compound Logistic Exponential Growth	Y = b0(b1)t Y = b0eb1t Y = ebob1t	.944 .944 .944 .944
Women’s High Jump	Compound Logistic Exponential Growth	Y = b0(b1)t Y = b0eb1t Y = ebob1t	.947 .947 .947 .947

** Where b = a constant; b, b = regression coefficients; t = year, y = mean result for each event* All R values in significant at p<0.05.