[x] Try to get up close and personal with Sasuke and use your superior kenjutsu skills to deny him the breathing room he needs for his more complex techniques. If he does manage to escape you and make some distance, use Tone of Discord with a vertigo effect, then a dummy+kawarimi combo to get back in his face from an unexpected direction. If/when Sasuke loses sight of you, summon a bunshin and hide it, and have it occasionally mimic the noise of your Tone of Discord to get him to disrupt his chakra unnecessarily. Be on the lookout for traps, ninja wire, shuriken tricks, and the Great Fireball. Steadily wear Sasuke down until an opportunity arises, then go all in and try to end the fight decisively.
[x] Plan deception
-[x] Take the fight to close quarters using kenjutsu to negate his advantage over long range. Take away his kunai pouch if given the opportunity.
-[x] If he manages to make some distance, close it with substitution and summoning dummies to attack him from behind. If he manages it a couple of times, bluff him by henging into a dummy and attacking him while he searches for where you substituted to.
-[x] Take advantage of your superior stamina to control the pace of the fight and tire him out.
-[x] Pretend to use more chakra than you do. Use Tone of Discord and combine it with fake castings of it and take advantage of the fact that summoning dummies does not cost chakra by pretending they do. Vary the effects of the genjutsu so that he can't immediately tell if you casted it or not.
-[x] Goad him into using more chakra than he has to with a combination of talking and genjutsu.
-[x] If for some reason he uses the fireball and you are unable to either dodge, replace or block with Mr Wood, then use endless blade to counter it and break through using it as a cover as a last resource.
[X] He's right he isn't better than you in close combat, so that's where you'll force him to fight you. If he tries to gain distance us Tone of Discord to unbalance him and catch up. If he tries to use ranged attacks use Endless Sword to disrupt them. Use your techniques to keep him close and take him down in a field he can't hope to match you in.
[X] You will show off to the teachers in this battle. You will perform every technique precisely and efficiently to prove to them you should be ROTY. Winning is not necessary to be ROTY, though you aim to win.
[X] Get close and use your strengths
-[x] take the initiative
-[x] get close, but stay focused on what he's doing, never lose track
-[x] start the fight with Ken-jutsu, don't rush it, every little cut is a small chink in his armor
-[x] start to gradually implement your Bunshins, they are nothing more than an annoyance in close-combat, but it might be enough to distract him for a split-second
-[x] throw in a few Creation: Straw Companion: Ranking Not Applicable. Usable 5/day for emergency Kawarimi
---[x] just maybe you can try to fake a Kawarimi by using Henge into one of your Straw Companion
-[x] try to implement your Bunshin as phantom-limbs to land some critical hits
-[x] when the time is right, Sasuke loses his cool for example, initiate Tone of Discord (vertigo)
-[x] disengage and initiate Endless Sword
-[x] during the fight stay cool, there's absolutely no need for banter or some such.