West Coast has been thumped by 101 points as St Kilda notched its biggest win in 10 years at Marvel Stadium on Sunday.
The Saints showed no mercy, kicking eight unanswered final-quarter goals after leading by 55 at the last change and ravaging last year's wooden spooners 22.11 (143) to 5.12 (42).
Ross Lyon's men equalled the club's largest winning margin against the Eagles from 21 years ago, with the victory their biggest since they smashed Essendon by 110 points in 2015.
Jack Higgins kicked five goals as St Kilda - the biggest players in last year's trade period - improved their 2026 record to 3-4 ahead of a clash with Carlton on Saturday night.
St Kilda was the beneficiary of a baffling call from the ARC midway through the second quarter when play was abruptly halted more than a minute after a behind call, with the umpire taking the ball back more than 80m to give Rowan Marshall a shot at goal.
Apart from a brief run of play early in the third quarter, West Coast was blown away by the Saints, as emerging youngster Hugo Garcia (32 possessions, two goals) starred in a breakout performance.
Nasiah Wanganeen-Milera (34 possessions) was typically influential, despite being followed around early in the match by West Coast's prized No.1 draft pick Willem Duursma.
While the tag was eased after the first break, the pair went stride for stride for the first 30 minutes of the game - Wanganeen-Milera (10 disposals, one clearance, 173m gained) to Duursma's (eight touches, one clearance, 204m gained) in the first quarter.
Higgins boosted his goal tally in the last two weeks to eight, while Liam Ryan slotted three majors in his first game against his former club since joining St Kilda last October.
West Coast has been convincingly beaten in all four games since their rousing upset of Port Adelaide in round three.
Premiership veteran Elliot Yeo took a strong contested mark in the second quarter, but quickly missing from a snap 10m out proved to be a momentum crusher for the young Eagles.
Josh Lindsay showed some promising signs across half-back with a high-quality and career-high 31 disposals at 90 per cent efficiency.
Reuben Ginbey fought tooth and nail in typical fashion but the Eagles' backline was swamped and overwhelmed by St Kilda's slick ball movement.
West Coast returns home to face Richmond at Optus Stadium on Saturday afternoon.
ST KILDA 3.4 7.10 14.11 22.11 (143)
WEST COAST 0.3 1.6 5.10 5.12 (42)
GOALS
St Kilda: Higgins 5, Ryan 3, Garcia 2, Hall 2, Phillipou 2, Sharman 2, Windhager 2, Butler, Caminiti, Flanders, Marshall
West Coast: Baker, Reid, Shanahan, Waterman, Yeo
BEST
St Kilda: Wilkie, Wanganeen-Milera, Garcia, Higgins, Marshall
West Coast: Duursma, Lindsay, Ginbey, Reid, Yeo, Williams
INJURIES
St Kilda: Nil
West Coast: Nil
Crowd: 29,070 at Marvel Stadium