minimum charge distance?

[player]

Had a situation where my HF impact foot Romans are in a vineyard charging Bosporan cavalry also in the vineyard (don't ask). The two BGs are 1 inch apart. The Bosporans in single rank decide to evade. They roll a 1 on a variable move test. Their normal move in vineyard is 1 inch. Hence they do not move? The HF also roll a 1 on the variable move test. The normal HF move in difficult going is 2 inches, so do they also not move as the variable move result is a 2 inch reduction?
Is there somewhere in the rules that say there must be at least a 1 inch charge move?

[berthier]

As I do not have the rules with me, if you do not have an answer by the time I get home, I will attempt to look it up for you.

[philqw78]

If you don't move you don't move.
The minimum is 0

[grahambriggs]

What were the Bosporans armed with? If they are lancers they cannot evade. In which case the legionaries would charge to contact (no VMD as the enemy are not evading)

[player]

No Bosporans were bow sword not lancers

[Intothevalley]

So if no one moves, do the cavalry still do a 180 turn (or turn to where-ever they're evading to) as part of the evade?

[grahambriggs]

So if no one moves, do the cavalry still do a 180 turn (or turn to where-ever they're evading to) as part of the evade?

Yes. It's the 6th bullet on page 62. "turns 180 degrees , and moves it's full distance forward (which is to its original rear)". So you turn around and make a 'move' of zero.