"- Scoring system is W: 3; D: 2; L: 1; who not accept the challenge or not send a challenge (-1); who accepted the challenge but did not get enough players to start the match (0). The opponent of the team that does not accept a challenge or does not have the required number of players gets 3 points."
ECL2017 DIVISION 1
so this means that Athens lose 1 point and Thessaloniki wins 3?
The 2 minus confused me.
I sent the challenge but our opponent is not accepting it, so as recommended here:
ECL2017 Div1 and Div2 Round 11
I’m reporting this issue in the related forum thread.
The match info and a challenge link:
ECL 2017 R11: Team Gdańsk vs Team Beograd
It's been two months since, can I cancel the challenge and claim win to the match?

You want me to read 5 pages of comments just to understand what "-1-3" means?!
OK, I dont care so much.
May it mean whatever..