XP in challenge?

Question

why in some challenges there are winer well take 1 XP ,
if I won I take only 1XP
if the other person won I lose -25XP

Answer 1

It does not depend on the level, but it depends on the total amount of XP in challenge weapon.
Explanations:
https://www.sololearn.com/Discuss/992991/?ref=app
https://www.sololearn.com/Discuss/940885/?ref=app
https://www.sololearn.com/faq/#q13
https://en.m.wikipedia.org/wiki/Elo_rating_system

Answer 2

You are welcome👍😊

Answer 3

thanks NezhnyjVampir that actually makes sense

Answer 4

I don't understand this XP system as well, I find it unfair

Answer 5

excuse me Sir.
but I challenge two persons in the same levels,
when I lose one of them I take +1XP and the other -25XP like I told you before