Explaining GvX: growth versus expected growth

I recorded a screencast of my seminar about the Turf GvX that I gave at Harrogate in January. You can watch it here.

For those wanting spreadsheets that show the calculation, you can get those at PACE Turf’s GvX reference page.

Also, see the seminar handout page for this presentation.

I’ve had a few questions about predicting clipping volume from the GvX. This is simply a matter of rearranging the GvX equation and then solving for clipping volume.

This is the standard formulation of the equation to calculate GvX.

$$\text{GvX}=\frac{ClipVo{l}_{14}}{20\times G{P}_{14}}\times 100$$

where $ClipVo{l}_{14}$ is the 14 day average of clipping volume and $G{P}_{14}$ is the 14 day growth potential average.

This can be rearranged to find ClipVol by setting the equation to be:

$$ClipVo{l}_{14}=\frac{\text{GvX}}{100}\times 20\times G{P}_{14}$$