Weeroona Bay have claimed another huge scalp in their 2021 campaign, defeating North Whyalla by nine points in a grinding contest at Bennett Oval.
The Bays, who are a much improved side in contrast to last season, were buoyed by Ned Buckerfield's three goals and an outstanding performance by Steven Jackson.
Both sides were equal at the half, and after another tightly contested quarter North had a one-point advantage going into the final stanza.
Two final quarter goals sealed the game for Weeroona Bay as North only managed two behinds, and the Tigers escaped with a 6.10 (46) to 5.7 (37) win.
Spearhead Daniel Collison had four goals for North, but it wasn't enough to see them over the line. Lachlan Combes and Tim Brown also had good games for the Magpies.
The Tigers now find themselves second on the ladder with a record of 9 wins and three losses, though they will have to wait and see whether the season continues after South Australia's COVID-19 lockdown.
The other matches in Round 12 were both blowouts, with West Whyalla and Central Whyalla both recording percentage-boosting victories.
West utterly decimated South Whyalla at Bennett Oval on Saturday, slamming on 22 goals to the Demons' sad final score of 1.1 (7) to win by 153 points.
It was another field day for the Dragons' forward line, with Ben English booting five and Ryan Winders and Clay Crompton both adding three.
They had 11 individual goalkickers while Donald Aitken had the only goal for a depressing Souths outfit. Shannon Winders, Ciaran Hollingworth-Hughes and Fraser Marshall were unstoppable around the ground for West.
The game was effectively over at halftime when West led by 63 points, and things only got worse for the Demons from there. The final score - 23.22 (160) to 1.1 (7).
Meanwhile at Memorial Oval Central romped to a 144-point win over Roopena, with veteran forward Scott Collison booting 11 goals.
The final score was Central 29.13 (187) to Roopena 6.7 (43).