Adelaide went down to Port Adelaide in Showdown LII by 56 points on Saturday night.
The Crows were defeated 16.15 (111) to 7.13 (55) at Adelaide Oval in the final match for 2022.
The Power took some time to match Adelaide's pressure early and were dealt a beating at the stoppages.
The Crows capitalised with early goals to Darcy Fogarty and Rory Laird, before a goalless deadlock of almost 20 minutes followed as the Power lifted and both teams struggled to put clean possession chains together.
Port broke away to start the second term, however, building a 13-point lead after Gray converted after marking close to the boundary and kicking from just inside 50m.
Fogarty made sure the game didn't get away from the Crows, landing back-to-back goals.
His first came after a dissent 50m penalty against Jeremy Finlayson, and his second after a brilliant contested mark on Jonas.
Skill errors further afield continued to cost the Crows, in what was a scrappy, low-scoring half, and Port took a seven-point lead into the main break.
Leading the centre clearances (8-2) and inside 50s (29-26) at the main break, the Crows had reason to be confident they could make a run in the second half if they tidied up their ball use.
They couldn't, however, and the game slipped away from them quickly in the third quarter as Port feasted on the Crows' repeated turnovers going inside 50.
O'Brien was the Crows' best with a massive 50 hit-outs and seven clearances, while Fogarty's three goals in the first half kept his team in touch.
Laird (26 and six clearances) and Sam Berry (21 and six) fought hard at the coalface.
PORT ADELAIDE 2.4 5.7 9.13 16.15 (111)
ADELAIDE 2.3 4.6 5.9 7.13 (55)
GOALS
Port Adelaide: Marshall 4, Gray 2, Duursma 2, McEntee 2, Amon, Georgiades, Butters, Rozee, Powell-Pepper, Wines.
Adelaide: Fogarty 3, Laird, Berry, Walker, O'Brien.
BEST
Port Adelaide: Rozee, Wines, Marshall, Butters, Amon, Aliir, Boak.
Adelaide: O'Brien, Fogarty, Laird, Dawson, Berry, Schoenberg.
INJURIES
Port Adelaide: Dixon (corked leg), Georgiades (ankle), Finlayson (knee).
Adelaide: Hinge (calf).
SUBSTITUTES
Port Adelaide: Riley Bonner (replaced Mitch Georgiades in the fourth quarter)
Adelaide: Ben Davis (replaced Mitch Hinge in the fourth quarter).
