Odense and Helsingborg are currently leading the inaugural four-club Atlantic Cup tournament following a 1-1 draw between the two sides on Monday evening.
Previously Helsingborg had recorded a 3-1 win over Elfsborg while Odense emerged the narrow 3-2 victors over Brøndby.
In the other match to date, Elfsborg also beat Brøndby 2-1.
The all-Scandinavian action in the Algarve was concluded yesterday (Thursday) when Elfsborg took on Odense (5pm) and Helsingborg faced Brondby (8pm). Entrance to all matches, which were played at the Algarve Stadium, was free.