Eastern Ranges got the better of Ports in a close Eastern Eyre football A grade encounter at Port Neill on Saturday.
The teams remained close throughout as Ranges won by 10 points with a 6.8 (44) to 5.4 (34) result.
Timothy Hannemann was a difference-maker for the visitors and was the only player to kick more than one goal, as he ended with three.
Ports shaded the first term to claim a six-point advantage after booting two goals to one, yet the visitors responded with two of the second quarter's three goals as the teams went into the half-time break locked at 3.3 (21).
Eastern Ranges used the wind to their advantage in the third term with two goals to Ports' one allowing them to edge clear by one kick at three-quarter time.
The visitors did enough in the final term, as one goal went through the sticks at either end, to record a third successive win to start 2021.
Among the best players for Eastern Ranges were Adam Hurrell and Jess Kenny, while Alec Bryce and Ayden Smith played well for Ports.
Meanwhile, Central Eyre United enjoyed a memorable day to win their first match in their first home clash.
The club, formed earlier this year, ran clear after quarter-time to defeat Cowell 13.3 (81) to 1.6 (12) at Wudinna.
The home side had the better of the opening quarter, with solid defensive work ensuring the Cats were kept to a solitary behind.
Leading by 13 points heading into the second term the Storm then pulled clear with six straight goals while Cowell failed to trouble the scorers to extend the margin to 49 points.
Cowell did grab a goal in the third quarter through Brendan Schwenke, but the majority of the action was at the other end as Central Eyre United added a further four majors.
They saw out the final quarter and added one more goal for a historic maiden win.
Tyler Chapman kicked five goals, while Jesse Stringer and Corey Waters were among the best players.
Doing well for Cowell were Nick Gale and Nicholas Franklin.
In the B grade, Eastern Ranges cruised to a 70-point win against Ports.
Ranges moved clear at the top of the table with three victories with a 12.11 (83) to 2.1 (13) result.
Meanwhile, Central Eyre United downed Cowell by 42 points, with Hamish May kicking three goals as it ended 10.4 (64) to 3.4 (22).