Harry stood up from behind the gravestone and yelled "Expelliarmus"
Voldemort sidestepped the spell easily before doing a double take. He raised his hand and said "Wait! Stop! Everybody just stop. Potter what are you doing?"
Harry faltered before saying "Dueling?"
Voldemort stared at him incredulously and repeated "Dueling? Dueling?! You call that dueling. Come on Potter this is a fight to death. Why in the world are you casting Expelliarmus?"
"To disarm. Why? What do you think I am trying to do." he asked confused.
Voldemort faced palmed and exclaimed "Potter what do you not get about we are fighting to the death here! What good is disarming me going to do?! You realize I can use wandless magic and summon the wand right back to my hand right? I mean you have studied my past so if you had to ever fight me you would know what to expect haven't you?"
Harry shuffled his feet and looked embarrassed "I… the thought never occurred to me before."
"Really Potter? Really?" Voldemort said shaking his head in disappointment. "You are supposed to be my nemesis and this is the best you can do?"
Harry bristled and said indignantly "Hey I can cast the shield charm and stunners to."
Voldemort looked at him with pity and said "That's great Potter it really is. Except for two things Avada Kadava bypasses the shield charm and stunners have a simple and easy to use counter charm that all my followers can cast." He then waved at the thirty or so men circled around them. He then continued "I mean even if you somehow hit me with a stunner then what?"
Harry stood there flummoxed "I would uh let's see…"
Voldemort sighed "Yeah that's what I thought. Okay now I am just embarrassed for the both of us. I regret ever considering you my nemesis, it just reflects so badly on me. Just… just go alright. I am not feeling this fight anymore."
Harry stood there with an unsure look on his face till Voldemort made a shooing motion with hands and said "Go on get out of here." As Harry shuffled over to Triwizard Cup and vanished Voldemort mused aloud "Maybe Longbottom will put up a better fight?"