Having got a bonus point in defeat to Mannheimer on Friday, Glens then created some slick deflections and defended their circle brilliantly in a 2-2 draw with Grunwald Poznan 24 hours later.
Glens then needed Poznan not to better their result against the Germans; and they got their wish, as Mannheimer won 5-1.
Glens now join Pembroke Wanderers in the KO16, and also became only the third side in the past two seasons to break the seeding system and make it through as a third seed from the group stages.
Cork C of I and Munster U18s will both be sweating on the fitness of Nick Burns, after the star forward suffered a knee injury in their 8-0 Peard Cup rout of Catholic Institute.
Burns had already hit a hat-trick before he and Ivan Moore were both red-carded following an ugly clash in which Burns was hurt.
He is now likely to miss C of I’s Irish Hockey League assignment in Cookstown next week, but is expected to return to spearhead the Munster U18s’ interpros challenge.
Bandon also progressed in the Peard Cup, as Andrew Scannell, Graham Kingston and David Smith got the goals in a 3-0 win over Cork Harlequins B. David Eakins hit five as Quins A routed C of I B 9-0.
Catholic Institute’s 100% record remains intact in the women’s top tier, after they hammered Bandon 6-1 in west Cork, Elaine Bromell and Eimear Cregan both bagging braces.
Cork Harlequins were worked very hard by Cork C of I before eventually emerging with a 2-0 win at Garryduff, thanks to goals in either half from Cliodhna Sargent and Orlagh Cotter.
Doubles from forwards Vicky O’Sullivan and Ali O’Regan helped UCC see off Ashton 5-0, while UL collected their first points of the season as Stephanie Peters hit the winner in their 2-1 defeat of Belvedere, who remain without a point and replace the Limerick students at the bottom of the table.