Pramac rider Jack Miller’s life outside of MotoGP from net worth to wife

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Jack Miller is the ‘Thriller’ from Down Under who rose into MotoGP as a huge talent with a lively image and grew to be a fast and consistent rider at the front of the grid.

The Australian has graced the premier class field since Miller jumped straight from Moto3 to MotoGP in the 2015 season. Miller became the first pilot since Leon Haslam in 2001 to jump from the lightweight to the premier class after securing a multi-year factory Honda contract.

Miller impressed Honda in his breakout season in Moto3 after fighting Alex Marquez for the 2014 title. He ultimately lost out to the Spaniard by just two points but moved into MotoGP with satellite Honda outfit LCR Team in 2015 with Miller debuting in the Grand Prix of Qatar.

Jack Miller jumped from Moto3 to MotoGP with a factory Honda contract in 2015

Honda intently viewed Miller as a star for the future, but his rapid rise into MotoGP saw the Aussie struggle in his rookie season. Miller only scored 17 points from 18 races and he only finished 11 after crashes in Qatar, France, Italy, the Netherlands, America, Britain and Japan.

It would be one-and-done at LCR for Miller as he moved to fellow Honda satellite crew Marc VDS in 2016. Yet the change in scenery brought the best out of Miller, who achieved his first MotoGP race win at the 2016 Dutch TT with a mature ride despite the pouring rain at Assen.

Miller was starting to face many critics by the time MotoGP headed to Assen after a broken leg derailed the start of his sophomore season. Yet a stunning victory at Assen proved what Honda saw in him in Moto3. Miller also showed great consistency in 2017 with nine top-10s.

His Assen win also saw Miller make Marc VDS the first independent team to win a race since Toni Elias won the 2006 Grand Prix of Portugal for Fortuna Honda. Miller used his win to aim a “slight dig” at Honda by celebrating with a shoey, having been fined for it at an after-party.

Scoring a then-career best 82 points in 2017 for Marc VDS after finishing all but three of the 17 Grands Prix he entered also saw Miller join satellite Ducati crew Pramac for 2018. Joining Pramac Racing even saw Miller take his first MotoGP pole position at the 2018 Argentina GP.

Jack Miller has raced for the factory Ducati and KTM teams in MotoGP

Further race wins proved elusive, but Miller’s continually improving consistency saw Ducati sign the Australian for their factory rider line-up from the 2021 season. Racing in red would return Miller to the top step of the rostrum in the Grands Prix of Spain and France, as well.

Yet despite reaching the rostrum seven times in 2022 – including winning the Grand Prix of Japan – Ducati showed Miller the door to promote Enea Bastianini. Miller would switch to the third manufacturer of his career in MotoGP for 2023, as well, by joining KTM Factory Racing.

His time with KTM was not a fruitful period for Miller, though, and he left the Austrian crew after two years having claimed one podium in 39 races. After scoring 163 points in 2023, he even fell to a mere 87 points in 2024 whilst KTM protégé Pedro Acosta scored 215 at Tech3.

KTM opting to promote Acosta from their satellite Tech3 line-up to their factory fold meant there was no room at the inn for Miller. So, Pramac welcomed the Australian back from the 2025 season, with Miller partnering Miguel Oliveira as the Italian team linked with Yamaha.

So, with that in mind, MotoGP News has taken a look at everything that you need to know about Miller from the Australian’s net worth plus wife to the nicknames he has inherited…

Who is Pramac Racing rider Jack Miller?

Jack Miller is an Australian motorcycle racer, currently competing in MotoGP for the Pramac Racing team as of the 2025 season. The Aussie is a cult hero for many fans thanks to Miller’s lively personality, which has seen him get a reputation as a bit of a prankster in the paddock.

His prankster ways even started as a youth when Miller convinced his babysitter to drain his family’s pool and make it a skate park. Growing up has also seen Miller turn into a dab hand at being a farmer, which is the career he expects he would have looked into if not for racing.

It was also on dirt that Miller started his racing adventure before later moving to road racing in 2009. Trading dirt for road racing would even see Miller go on to win his first trophy in the 125cc International German Championship (IDM) in 2011 with an Aprilia bike by just a point.

Pursuits in professional rugby, golf or fishing could also have materialised for Miller if not for two-wheeled motorsport. He was and remains a keen angler, and Miller even played lots of golf plus rugby in his youth. So, Miller had a flurry of options if motorsport had not paid off.

Miller is also a proud Australian who cites compatriot Mick Doohan as his childhood idol and also idolised fellow Aussie, Casey Stoner. Outside of MotoGP, Miller is also a huge fan of rock and roll with Pink Floyd’s 1979 hit ‘Comfortably Numb’ his go-song amid any times of stress.

How old is Jack Miller? Where was he born and what is his nationality?

As of the time of writing, Jack Miller is 30 years old having been born on 18 January in 1995.

Miller is an Australian and was born in Townsville, a city on the north-eastern coast of Queensland. Circa three-quarters of Townsville’s 200,000 population were born in Australia.

How tall is Jack Miller and how much does he weigh?

Standing at a height of 1.73m, Jack Miller measures in at 5 ft 6 in, making him the average height for a rider in 2025.

He is also the average weight for the current grid, weighing 64kg (10st 1lb), along with six other riders, including Marc Marquez and Francesco Bagnaia.

Why Jack Miller chose 43 as his permanent MotoGP race number

Jack Miller always wanted to run the No43 plate on his bike while working towards MotoGP, having had 543 on his very first bike before moving to 43 upon switching to road racing. But Miller only got the No43 plate when he graduated to MotoGP in 2015 with the plate vacant.

Instead, Miller used the No8 and No73 plates in his first year in the 125cc class in 2011 due to Francesco Mauriello running the No43 plate. He also kept with the No8 plate for 2012 as Miller raced in Moto3 as a full-time rider, as well as through the 2013 plus 2014 campaigns.

Is Jack Miller’s nickname ‘Jackass’ or ‘Thriller’?

Jack Miller has adopted a few nicknames during his time in the world championship, starting off with ‘Jackass’ from his Moto3 days before transitioning to ‘Thriller’ in MotoGP. He gained the ‘Jackass’ nickname for Miller’s attitude and approach yet gained ‘Thriller’ after maturing.

Despite jumping straight from Moto3 to MotoGP and bypassing Moto2, his early days saw a lot of crashes – hence Miller’s ‘Jackass’ nickname. Yet Miller built a stronger reputation over the years and put all of his learnings into action. So, a new nickname followed with ‘Thriller’.

How good is Jack Miller? Who has praised the MotoGP rider?

Jack Miller has received praise for his potential and performances all throughout his time in the world championship. LCR Team boss Lucio Cecchinello was clear that he felt Miller had “undeniable talent” before his MotoGP debut in 2015 after scoring six Moto3 wins in 2014.

Excelling in the lightweight class also saw Valentino Rossi back Miller to have “a very good career” in MotoGP, plus Cal Crutchlow say the Australian was “absolutely a special talent”.

Turning that potential into consistent results in MotoGP also saw Miller earn further praise throughout his time in the premier class. Ducati Corse general manager Luigi Dall’Igna was particularly quick to give praise after Miller dominated to win the 2022 Grand Prix of Japan.

Dall’Igna said after Miller rose from seventh place on the grid to lead after Lap 3 – including pulling an aggressive pass on Marc Marquez – to win at Motegi: “I am delighted with Jack’s victory because he is a wonderful person and one of the strongest riders in MotoGP.

“He was clearly superior to everyone. He rode impeccably, making incredible overtakes and keeping a very high pace despite being alone at the front. He really deserved this success.”

Ducati Corse sporting director Paolo Ciabatti also praised Miller for how the Australian tried to help teammate Francesco Bagnaia in the 2021 Grand Prix of San Marino.

Ciabatti said: “He is a great team player [and] he is a great guy in general. He is a really loyal, honest [and] straightforward person and we know that in his heart now if he can help Pecco when it is needed, he will do it.”

Meet Jack Miller’s wife, Ruby Adriana Miller

Jack Miller married his long-time girlfriend Ruby Adriana Miller on October 8, 2022, with the MotoGP cult hero utilising a one-week break between the Thai and Australian Grands Prix to tie the knot. The Miller couple held their wedding just over six months after Jack proposed.

Ruby, whose maiden name is Mau, is a close source of support for Miller and the model also travels around the world in support of his racing career. The Miller family also grew further on September 14, 2023 when Ruby gave birth to their first child, a daughter they called Pip.

Jack Miller’s net worth

Despite making his MotoGP debut in the 2015 season, Jack Miller’s net worth is only £6.5m according to online estimates. Personal sponsorship deals with brands such as Red Bull and Caterpillar over the years plus his wage as a rider have helped Miller increase his net worth.

Jack Miller’s Grand Prix career racing stats

As of the end of the 2024 season, Jack Miller is still to win a riders’ title over any motorcycle world championship the Australian has competed in. Miller further secured his best finish to a season with P2 in the 2014 Moto3 campaign or in MotoGP with P4 in 2021 while at Ducati.