Effect of Training on Grass

I wouldn’t suggest going straight into a race with no time at all on the track. Just that my experience has been that the transition is quick and the results fast. Just a couple of weeks after Ben returned from grass, he ran a 6.51 60m followed up by a 9.7ht wa 100m and then 6.44 60m.
The other thing is that the time it takes to switch from grass to track is related to how long you were on grass in the first place. Ben went grass to track, then to grass and then back. Not continuous for the whole training phase. Also interesting wass his ability to go almost straight from the track to run well on grass.