It has been a rapid rise for the young first five, who has jumped in super quick time from Taieri super boot to Otago playmaker to emerging Highlander.
Now he can call himself a Super Rugby try-scorer.
Millar, who made his debut with a very brief cameo against the Force in Invercargill, got a solid 25 minutes on the field on Saturday, scoring the final try in the 57-24 win over the Fijian Drua and converting it for good measure.
"I think that’s actually my first try in all first-class rugby. It’s been a long time coming."
Unusually, the try was engineered by a No.8, fellow rookie Nikora Broughton, whose grubber kick sat up just in time for a streaking Millar.
"I was pretty stoked. It’s a wee bit of a blur.
"I was actually calling for the pass, and unusually the No.8’s grubbered it, so I was good to get on to it."
Millar knows he will need to add some speed if he is to get a regular gig as a Super Rugby first five, and he has been working on his pace over the summer.
The injury to English playmaker Freddie Burns means the Gore product should get some more opportunities in the coming weeks as well.
He relished every moment of his time on the field on Saturday.
"I still kind of had those debut nerves because I didn’t get a real big run last week.
"I’m feeling way better now I’ve actually had 25 minutes or whatever on the field. I really enjoyed it.
"When I got on, both teams were starting to fatigue a little bit, but it was definitely a lot quicker than NPC and what I’ve experienced before."
The Taieri Eels resume the Dunedin club rugby season this weekend — they were unbeaten last year before losing in the final — but they should be planning to be without their star playmaker for a while yet.