AN UTTERLY dominant first half has set Port Adelaide for a 55-point belting of Hawthorn, but the margin could have been greater if not for a second-half fightback from the Hawks.

The second-placed Power's 23.13 (151) to 14.12 (96) rout at Adelaide Oval on Saturday is its ninth consecutive victory - bettering its eight-straight wins in the seasons of 2002, 2003 and 2014.

The Power romped to 9.3 at quarter-time - its biggest score in an opening term at Adelaide Oval, and their highest in any game since 2009.

08:49

Highlights: Port Adelaide v Hawthorn | PTV

See the highlights from Port Adelaide's big win over the Hawks.

Port booted another seven goals in the second quarter for a 16.9 (105) total - its highest halftime score ever, surpassing the previous best of 15.5 (95) against Richmond in 2002.

The Power's 82-point halftime lead was also a record for Ken Hinkley's club. Midway through the third term, the hosts were 96 points up.

But the Hawks stemmed the bleeding by kicking eight of the last 10 goals of the game.

The only bright spot in Hawthorn's dismal first half was Luke Breust kicking his 500th career goal, joining Leigh Matthews, Jason Dunstall and Jarryd Roughead as Hawks to reach that milestone.

Port's Finlayson booted four goals in the opening quarter and his five for the match equalled his career-high.

01:44

Finlayson's electric five-goal first half powers win | PTV

Port Adelaide's Jeremy Finlayson equals his career-best with his five-goal haul demolishing the Hawks early.

Fellow forwards Todd Marshall (five goals) and Junior Rioli (four goals) also matched their career-best hauls.

Port's midfield duo of Connor Rozee (29 disposals, 13 inside-50s, one goal) and Zak Butters (26 touches, one goal) continued their fine form, while Brownlow medallist Ollie Wines collected 24 possessions and halfback Dan Houston's 20 disposals featured two long goals.

Hawthorn's Breust finished with five goals in a standout display for his 16th-placed club and Mitch Lewis slotted three majors.

Hawks on-baller James Worpel gathered a match-high 35 disposals while former Power pair Jarman Impey (33 touches, one goal) and Karl Amon (25, one goal) battled gamely against the Port tide.

PORT ADELAIDE     9.3    16.9    21.12    23.13  (151)
HAWTHORN           2.3     3.5      8.8       14.12   (96)

GOALS 
Port Adelaide: Finlayson 5, Marshall 5, Rioli 4, Houston 2, Wines, Burton, Horne-Francis, Butters, Rozee, Byrne-Jones, McEntee
Hawthorn: Breust 5, Lewis 3, Brockman, Impey, Newcombe, C.Macdonald, Butler, Amon

BEST 
Port Adelaide: Butters, Rozee, Finlayson, Marshall, 
Hawthorn: Breust, Worpel, Impey, Lewis

INJURIES 
Port Adelaide: None
Hawthorn: None

LATE CHANGES
Port Adelaide: None
Hawthorn: Seamus Mitchell (illness) replaced in selected side by Bailey Macdonald

SUBSTITUTES 
Port Adelaide: Josh Sinn (replaced Scott Lycett in the third quarter)
Hawthorn: Cam Mackenzie (replaced Lloyd Meek in the second quarter) 

Crowd: 34,234 at Adelaide Oval