Group A winner plays Group B runner up. Call this match 1.
Group B winner plays Group A runner up. Call this match 2.
Group C winner plays Group D runner up. Call this match 3.
Group D winner plays Group C runner up. Call this match 4.
Group E winner plays Group F runner up. Call this match 5.
Group F winner plays Group E runner up. Call this match 6.
Group G winner plays Group H runner up. Call this match 7.
Group H winner plays Group G runner up. Call this match 8.

Winner of Match 1 plays winner of Match 3. Call this match 9.
Winner of Match 2 plays winner of Match 4. Call this match 10.
Winner of Match 5 plays winner of Match 7. Call this match 11.
Winner of Match 6 plays winner of Match 8. Call this match 12.

Winner of Match 9 plays winner of match 11.
Winner of Match 10 plays winner of match 12.

The two remaining teams are in the final.