Coach Ken Hinkley is refusing to gloat after Port Adelaide's stunning 30-point upset of Hawthorn in Gather Round's grudge game.

Hinkley's unfancied outfit stormed to a 71-point lead in the second term in their 18.13 (121) to 14.7 (91) victory on Sunday night at Adelaide Oval.

Hawthorn crashed to their first defeat of the season as Port's Zak Butters (33 disposals, eight clearances) and Connor Rozee (28, two goals) ran amok.

Port's first-half onslaught created an astonishing 12.7 to 1.2 scoreline before a 47,671-strong crowd for the clash of the new-found fierce foes.

Hinkley fanned the rivalry flames last May in celebrating the Power's greatest escape, when Darcy Byrne-Jones soccered the winning goal with two seconds remaining.

The fire escaped containment lines after their semi-final in Adelaide when the Power pipped the Hawks by three points.

Hinkley taunted Hawthorn players post-game and was fined $20,000 by the AFL - a sanction which still has the Power privately fuming.

Port, now with a 2-3 win-loss record, were brilliantly led by Butters and Rozee, who starred with a strong support cast featuring Jason Horne-Francis (29 possessions), Drew (26, one goal) and Ollie Wines (26).

And the Power attack fully exploited their plentiful supply, with Georgiades (three goals), Rioli (three), Powell-Pepper (two) Rozee, Richards and Jackson Mead (two goals) multiple scorers.

Hawk midfielder Jai Newcombe (29 disposals, one goal) and skipper Sicily battled against the flow, while veteran Jack Gunston kicked six goals and ruckman Lloyd Meek scored two.