It could Just mean that he was his senior and thus only in ANBU longer
As for those saying that Itachi would only beat Kakashi because he is an Uchiha ... Kakashi is the son of the White Fang and if he would be stronger than I could have said thats the only reason why he would have won
lets say Einsteins son was a genius, could you say no he isnt because he is Einsteins son and not a normal human with no significant background?
How the hell can you know that??!!
Tsukuyomi, Amaterasu, Susanoo = 3 than there is like 10 more different genjutsu he used and 5 jutsu he used
but Kakashi used like 10 jutsu till now ... that must mean he only has 10 jutsu and not 1000
oro the same he used like 10 jutsu he certainly isnt one of the best ninjutsu users like said in the manga and databook
hiruzen used like 5 jutsus he certainly didnt master all jutsus in Knoha
get my point?!
It'd still be the same thing, if you're in something for a long period of time, you don't stay at that rank, you progress, it's like a job. If you're a Senior in a company, you're more than likely at the top of the company, not at the bottom with all of the new recruits, that's a fact.
I'm not saying the Uchiha thing like that, I'm stating that if Kakashi kept ALL of his abilities, and the only thing that changed was him being an Uchiha, then he'd win, it's simple, he could spam Kamui. No idea why you're grabbing on to just that one bit rather than look more into it which is what I was trying to get at.
________
Itachi mastered Ninjutsu, he's listed as a level 5 just like Kakashi is, so whoever said he only had three was in fact wrong, however he only ever uses three because I'm sure those are his best ones and as well the fact he is a pacifist and hates fighting.
Itachi's Jutsu's That We Have Seen So Far:
Amaterasu
Clone Great Explosion
Crow Clone Technique
Demonic Illusion: Burning Paper Body
Demonic Illusion: Mirror Heaven and Earth Change
Demonic Illusion: Shackling Stakes Technique
Dusk Crow Genjutsu
Ephemeral
Fire Release: Great Fireball Technique
Fire Release: Phoenix Sage Fire Technique (Anime only)
Shadow Clone Technique
Susanoo
Transcription Seal: Amaterasu
Tsukuyomi
Water Release: Water Fang Bullet
Kakashi's Jutsu's That We Have Seen So Far:
Chidori
Demonic Illusion: Hell Viewing Technique
Earth Release: Double Suicide Decapitation Technique
Earth Release: Earth Style Wall
Earth Release: Hiding Like a Mole Technique
Eight Gates
Evil Sealing Method
Eye Mind Reading (Anime only)
Fire Release: Great Fireball Technique (Anime only)
Front Lotus (Anime only)
Hidden Mist Technique (Anime only)
Kamui
Lightning Beast Running Technique
Lightning Cutter
Lightning Release Shadow Clone
Multiple Shadow Clone Technique
One Thousand Years of Death
Rasengan
Shadow Clone Technique
Shadow of the Dancing Leaf (Anime only)
Silent Killing
Strong Fist (Anime only)
Summoning Technique (Ninken)
Summoning: Earth Release: Tracking Fang Technique
Water Clone Technique
Water Release: Great Waterfall Technique
Water Release: Water Dragon Bullet Technique
Water Release: Water Encampment Wall
Water Release: Water Shark Bullet Technique