Ronaldsway caused the shock of the GH Corlett Woods Cup as they demolished Onchan in the preliminary round.
The Rockets belied their lowly league form to produce a stunning 7-1 victory.
A Jordan Edge hat-trick led the way.
Jeff Moore, Jack Powell, Andy Blake and Jamie Brennan netted the others as Onchan – for whom Mark O’Neil scored – were stunned.
Colby showed their quality with a 4-0 success at Braddan, courtesy of goals from Eddie Cooper (two), Adam Fretwell and Jack Snidal.
Division Two leaders Michael booked their place in the quarter-finals but were pushed hard by Douglas and District before winning 2-0, thanks to second half goals from Paul Corlett and Peter Fisher.
Final 2026 ARA Championship round beckons
2026 End to End Walk taking place today
Football: Corinthians go top of premier league as Peel stumble
Rugby: Douglas Celts begin Manx Shield title defence with a win
