Rules · Balance · Must-follow · the model’s own rule

Double-ups: one home game each

internal:venue.HA-ALTERNATIONCatalogue name: Double-ups split home and away

What it means

When two clubs meet twice in a season, each club hosts one of the two games.

Basic fairness for return games: neither side gets both at home.

Fremantle hosts Brisbane Lions once, and Brisbane Lions hosts Fremantle once.

Must-follow The fixture must obey this rule. A separate checker tests the finished fixture afterwards.

Must-follow. A project fairness rule, not a single catalogue rule. Checked from the 18 September release.

Teams played twice shows how this plays out across the season.

One cell per release, oldest first. Each shows the verdict that release recorded for this rule; a release with no row for the rule says so.

First checked independently in TV slots added, 18 Sep 2026.

For analysts: catalogue text and codes

Rule id: internal:venue.HA-ALTERNATION
Catalogue text: When two clubs meet twice in a season, each hosts one of the two meetings.
Catalogue type: modelled rule (not a catalogue row)
Catalogue family: internal
Class: hard · The fixture must never break it.
Step: S3 · Step 4: home ground and venue
Recorded status: met · source row evaluated
Catalogue reason: A within-season fairness rule for return fixtures.