Karma and Tanjiro are very different when it comes to personality. Karma is all about doing things his own way and defying his higher ups as much as possible. Tanjiro prefers to learn when he can from everyone and hone his skills to go as high as they can. In terms of ability he is in a completely different league from Karma though so this would be an easy win for him. The deep breathing techniques make Tanjiro far stronger than a human can hope to be. Tanjiro wins.
DReager1.com 
Tbh idk why this is a matchup, they barely have any relations, not to mention the fact that the gap in power is too big for this to be fair,
But anyway tanjiro wins
But once agian, you did not display any sort of good explanation
and im bored so imma do it myself
In terms of strength the power gap is WAY to huge, Tanjiro’s boulder slicing feat alone already outclasses any strength feat that karma has displayed. and this was when he was not even a demon slayer yet. im low balling tanjiro for this feat like hell.
In terms of speed, tanjiro also wins this one
At best karma could dodge bullets while tanjiro can dodge lightning, once agian, no debate there.
When it comes to experience, Tanjiro also takes this one, due to more time training then karma, despite karma training before tanjiro did.
All i can say for karma is that, he has better marksmanship then tanjiro?
But like i said tanjiro could dodge lightning, and this is not including the demon slayer mark and see through world in which case karma is fucking dead, not that tanjiro would need to use them anyway.
Once agian this is a huge ass stomp to the point where its not even fair.
Tanjiro wins this by so much that its pretty much boring.
Agreed, Karma doesn’t stand a chance there. It kind of feels bad to see stomps like this, but at the same time I can’t help but grin a little at how the fight would play out. I’m sure they would both have a lot of solid banter as they hurl insults at each other
Yeah well the problem with stomps is that its not very fair, If your gonna pit karma up agiants someone at least make it so that karma is equal to them, same goes with tanjiro,
These 2 have zero relations. You could have put tanjiro up agiants someone similar to him like Jonathan joestar
Yeah, I forgot why these two ended up fighting but there are definitely a lot of random matches around the site as well as the requested fights. It helps make for a lot of interesting things to think about tho