The Otago seamer has had several opportunities to shine at international level and he is not one to be overawed by the occasion.
But Sunday’s ODI against Bangladesh will bring a new kind of pressure.
The 29-year-old will get to play in front of family and friends at the University Oval.
The right-armer must be on a first name basis with every blade of grass at the venue by now.
He bowls a lot of overs for the Volts and has taken 145 wickets across all three formats at the University Oval, so he will be very comfortable in the setting. But opportunities to play for the Black Caps do not come around that often.
The likes of Trent Boult, Tim Southee, Matt Henry and Lockie Ferguson have had a mortgage on the seaming spots.
"With a settled lineup with Tim and Matt Henry, and guys like that there, opportunities are a bit few and far between," Duffy said.
"It is always exciting to get the call up, but I don’t want to get too over-hyped and make a big deal of it."
You can take the kid out of Lumsden, but not the Lumsden out of the kid, it seems.
Duffy has played three ODIs and 10 T20s for his country. All but one of those games has been outside of New Zealand.
Duffy made his international debut in Auckland and took four for 33 against Pakistan in a T20 at Eden Park.
"With the white ball I like to be a banker for the captain — someone they can rely on to bowl all 10 overs and they know what they are going to get," he said.
That is arguably Duffy’s greatest attribute — his consistency. He has rough days like everyone else, but he has carried the Otago attack for years.
You know what you are going to get. He his going to put the ball on a good line and length and stay patient.
"When you see a game scheduled in Dunedin you sort of circle that one hoping to be part of it. I don’t know whether I’m playing yet or not.
"But if I do I’m sure as hell going to embrace it.
I haven’t seen a packed University Oval in a while, so hopefully we see that as well."