Alliance Duel runs Monday to Saturday and settles on Sunday. Everything below is from First Fun's English help centre — no community guesswork, and no numbers we could not source.
Why your alliance is not in it
Three separate gates, and people usually only know about the first:
- Your Base Level must be above 10 to take part personally.
- Your alliance needs at least 20 members.
- Only the top 32 alliances in the Warzone Power Rankings go into matchmaking.
That third one is the quiet one. A perfectly healthy 25-member alliance sitting at rank 40 in its warzone simply does not appear in the event, and nothing in the interface tells you that is why.
How you get your opponent
Warm-up matches are paired on combined member strength alone. League matches use more: strength, past placements, and promotion and relegation history. That is the answer to the usual complaint that an alliance keeps drawing opponents above its weight — a good record follows you.
Being matched against an alliance from your own warzone is not a bug either. When two same-server alliances have similar strength and similar rankings, the system will pair them like any other candidates.
The League, in one table
| Season length | 4 weeks |
| Group size | 16 alliances, selected at random |
| Ranked by | number of wins |
| Tiebreak | whoever won earliest |
| Promotion | group winner, if not already in Diamond League |
| Final standings | only after every Week 4 match has finished |
Two consequences worth internalising. First, your weekly score does not affect League ranking — only whether you won. A crushing win and a one-point win are the same row in the table. Second, because the tiebreak is the earliest win, two alliances on the same record are separated by something that already happened weeks ago.
Saturday is not your match
Saturday's stage lets alliances invade enemy warzones, which is why you can be attacked by an alliance that is not your scheduled opponent. First Fun's help centre calls this stage [Alliance Assaults] in one article and refers to a Saturday Enemy Buster event in another; we quote both rather than pick one, because we have not confirmed which name the current client shows. The practical advice is the publisher's: run a Shield, or sort it out diplomatically before the day starts.
Sunday: no icon, no disbanding
The Alliance Duel icon disappears on Sundays because Sunday is the settlement day — results are being finalised, so there is nothing to open. For the same reason an alliance cannot be disbanded on a Sunday. Disbanding becomes possible again once results are final and before the next matchmaking runs.
If you are trying to work out why your personal score does not match your alliance-mate's, that is a different question with a long answer: see Alliance Duel points.
Sources: First Fun’s official English help centre — Why can't I participate in [Alliance Duel]?, How does matchmaking work?, Format of [Alliance Duel - League], How is it settled? Ranking rules, How do ranks work in League mode?, Same wins, lower rank, No icon on Sundays, Saturday attacks from non-opponents, Matched against my own server, Can't disband on Sunday