specifics in Spear fighting combat

[Giannis K. Hoplite]

Yes,the spear in single combat could be held underhand,as shown in art. Just remember that when you were in single combat and you were a hoplite,it meant that you were in great danger and you had already lost a battle. You would use your skills(if you had any) only to prevent the victorious enemies slain you. And also remember that your oponenent would normally still have his shield covering all his chest so your targets would still be the thighs and face/neck. The overhand grip is still better for these targets. On the other hand,as I said,you would want to retreat safely,and this includes an amount of running and comfort. Thes are favored by the underhand grip. All in all, I think that when it came to this hell after a defeat,you would do whatever you found best at the spot. Hoplomachia would teach you how to use your spear in every situation,and also your sword(that was not part of the basic training).
Khaire
Giannis