Sean Dancer said he had full confidence that his charges would prevail in the shuffles shootout that led to a historic night for the sport.
Ireland Women beat Canada in dramatic fashion following two games that finished without a goal and are now Tokyo-bound for the 2020 Olympic Games, the first time that the team have qualified.
But having the experience of two World Cup shootouts last summer stood to them, said the Australian.
"It's an amazing thing for Irish hockey and I’m just really proud of everybody," Dancer told RTÉ Sport.
"We always knew it was going to be a real tough game, what gave me real confidence is obviously the girls have been in that pressure cooker before with the shootouts and in the end they were good enough to come through again.
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"You put a fair bit of time and effort into it but you can see the girls are fairly professional at it."
"[Ayeisha McFerran, who denied three Canadian penalty takers] lives for those sort of events and occasions so congratulations, she was amazing.
"Canada were great, they were a really tough opponent, we have a huge amount of respect for them. In the end it was two draws from two games."
"The crowd have been amazing, this was awesome.
"The girls have been great and we’ve been working really hard. I’m really proud of them."
Nicci Daly, who scored a stunning goal in the shootout, said of her penalty: "I don’t know how it went in.
"I think there was a few of us who ended up with tight angles but you have just got to remember you’ve got time and put your head down and hit it as hard as you can."