09 October 2024
The Alistair Tanner Story - How hard work led to a contract with the Detroit Tigers
story by Eric Balnar, photos by Lauren Finch
Year 12 student Alistair Tanner muscles a lot into a single day.
By 8:00AM, Tanner has already left his Eastern Adelaide suburbs home for Marryatville High School for a full day of school. He’ll be done by 3:15PM.
Then, it’s hustle across the city to West Beach for three hours of high-performance training at BaseballSA until 7:00PM.
Race home, squeeze in dinner, out the door by 8:00PM – it’s time for the gym.
At 9:00PM, it’s off to work, earning some side money storing equipment at a gymnastics facility for a couple hours.
There should still be enough time between end of today and the start of tomorrow to fit in homework. Or, maybe he can fit in other weekly seasonal commitments – club practice, state training, Adelaide Giants, mobility sessions, time in the pool and whatever else a teenager needs to do.
All that hard work is about to pay off.
Tanner, a hard throwing pitcher with a mid-90s fastball, has just become Australia’s newest full-time professional baseball player.
The newly turned 18-year-old from Kensington Baseball Club signed a contract with the Detroit Tigers this week to make it official.
Tanner says it makes it all worth the effort, and he knows the real work is about to begin.
“You can always make time for things that you need to do, especially if you love it,” says Tanner. “You can make those sacrifices. Yeah, I’m busy. The social life takes a sacrifice, but you can just get up earlier, or just stay up later, if you want it bad enough you just make it work.”

Tanner with his family on signing day. Photo: Lauren Finch
His life is certainly about to change.
Tanner notably has pivoted from his commitment to Arizona State University – a powerhouse baseball program which as produced more Major League players than any other US school.
The offer from the Tigers was too good.
“It’s been a dream of mine to see if I could play Major League baseball,” says Tanner. “I think by signing with Detroit, it gives me the best chance of fulfilling my goals.”
“It was a very hard decision to choose between college pathway and Detroit but after thinking through choices, I’ve decided to turn pro.”
Tanner is certainly an alluring pitching prospect.
He dazzled at the Under 18 National Championships last January in front of 14 MLB scouts huddled around a radar gun. Tanner’s fastball touched 94 on the gun in a must-win game for South Australia.
He can throw harder than almost any Australian and he hasn’t even graduated high school.
His fastball has since been logged at 95 miles per hour, his curveball spin rate is higher than major league average, and he possesses four different pitches – a fastball, curveball, slider and a splitter.
Now he’ll get a chance to refine his craft in a professional system.
“I want and need to get better at everything,” says a hungry Tanner.
The South Australian teen says the Tigers have been in touch for several years, keeping a close eye on him through his rise up the Australian ranks, and he’s felt comfortable with them since day one.
“I’ve always felt they were interested in all aspects of my life. For instance, they understood that finishing school was important to me,” he says. “They were always there to answer any questions I had. I know mum and dad could always reach out to them if they had any questions that needed answering. I feel like I am going to a club that wants everyone in the organisation to succeed.”
THE TANNER TALE – Ali’s Baseball Pathway
Ali started playing baseball when he was eleven.
Unlike other Aussies who have gone pro, there wasn’t a family connection to the game.
“I needed something to do in the summer. I chose baseball and what a good decision that was,” says Tanner. “An old family friend of mine played junior baseball at Kensington Baseball Club. I was playing Rugby and Footy in the winter. My options were cricket and baseball so I started there.”
He says he instantly felt connected to the craft of pitching.
“The higher level I played, the more I fell in love with pitching. I love being in control of the whole game. You’re always involved in the game when you’re on the mound,” he says.
Tanner quickly made an impression in the junior ranks and was selected on charter teams for the Adelaide Marlins – the Eastern & Northern representative teams in South Australia.
He played representative Little League, Junior League & Senior League for the Marlins, all while playing for Kensington locally.
By the age of 15, just four years after picking up a ball for the first time, Tanner made his start in the top division of Adelaide’s local competition.

Above: Alistair Tanner before his A-Grade debut in 2021
It didn’t take long for Tanner to crack the state squad.
He starred for South Australia at both the U16 and U18 national championships, including a silver medal in 2024.
Watching him every step of the way was Kensington’s head coach Austin Gallagher, who is now the BaseballSA Performance Pathways manager. Gallagher has worked with Tanner from the start.
He says he knew Tanner was special at a very young age.
“As a junior, he was extremely competitive but always seemed to do what he put his mind to,” says Gallagher.
“I remember specifically a day when he was about 14 years old at a junior league practice and I said to him as he was about to take some batting practice swings, “I know you can pitch, but can you swing?” And his response was, “I’ll show you.” A couple pitches into batting practice, he launched one off the top of the tree over the fence.”
“From that moment, I knew Ali was going to be a special player. When he puts his mind to something, he seems to figure out how to achieve it.”
Shortly after his A-Grade debut, Tanner was invited to be part of the Adelaide Giants’ development program.
He trained with the club full-time the past two seasons, earning a roster spot in 2023-24, and winning two championships along the way.
In November 2023, Tanner made his Australian Baseball League debut. He made four appearances in total across the season in a development role, not allowing a run in his 4.1 innings pitched.

Above: Tanner with his coach and mentor Austin Gallagher
“The Giants have been great for my development,” says Tanner. “They treated me like a regular player even though I was on the development list. They instilled a heap of confidence in me and encouraged me just to go out there in those four games. I’ve been able to hang out with an awesome group of guys who have been happy to share advise from their professional playing experiences.”
He didn’t just catch the eye of local selectors. The national squad came calling.
He was named to the 2023 Under 18 World Cup squad as a 16-year-old. He posted the second lowest ERA of any pitcher on the squad.
In 2024, at 17, he was named to the Under 23 World Cup squad as the youngest player on the list.
Through that all, Tanner was balancing school & life.
Gallagher says the two big Tanner characteristics that stick out are his work ethic and confidence.
“A prime example of this is when Ali goes to pitch at the Australian Youth Championship,” says Gallagher, a former minor league player himself.
“Everyone sees his dominance on the field, how he threw 94mph in front of scouts. But what people don’t see is the fact that in Year 11 he was waking up at 4:30AM, going to the gym, getting a lift in, going for a swim, and having breakfast all before 7:00AM. Everyday. He has a strength & mobility routine he sticks too and just always wants to be in the best position to succeed.”
Then there’s the confidence. Gallagher says no matter who you are or what environment Ali is in, he always seems to be comfortable and not out of his depth. He learns to adapt quickly.
“He believes and trusts in what his game has to offer and is never intimidated by anyone or anything,” says Gallagher.
Tanner says it’s an important mindset to have.
“You always have to be confident,” he says.
“If you’re going to beat yourself before you beat the other team, you’ve already lost. But you have to be confident and not arrogant. You’re there for a reason. You can beat them.”
WHAT’S NEXT FOR ALI

He’s a professional baseball player now. It’s eat, sleep, baseball repeat.
First, Tanner needs to finish high school. His final exam is on November 9.
Through all of that, Tanner says there’s only one thing to do – get better.
He won’t be able to pitch in games in Australia this summer, but he’ll still work out.
He’ll continue to train at Baseball South Australia with HP Manager Austin Gallagher and Adelaide Giants’ star reliever Todd Van Steensel.In January, he’ll head to Florida early for a pitcher’s camp before spring training.
Then, it’s to join the 3,500 other minor league baseball players all trying to reach the summit by climbing the minor league ranks.
And what does Ali want to get better at?
“Everything.”
“I know I need to be better at commanding my pitches. I’m training to master a repeatable action, one that works for me day in, day out. My pitch variety also needs work. While I know I can throw four different types of pitches, achieving a higher quality consistency is really important.”
“I also know that I need to improve on understanding pitch selection and game situations. That will come with more playing and training.”
Tanner joins fellow South Australian Jack Bushell in the Tigers’ minor league system.
Other professional South Australians include Curtis Mead (Rays), Jack O’Loughlin (Athletics), Drew Davies (Reds) and Jack Bushell (Tigers)
A SCOUTING REPORT
Baseball South Australia High Performance manager Austin Gallagher has a close relationship with Ali Tanner.
Gallagher is a former minor league player with the LA Dodgers, but importantly the former Division 1 coach of Kensington Cardinals, Ali’s home club. It was Gallagher who trusted Tanner as a starting pitcher at just 14-years-old in South Australia’s Division 1 competition.
This is what Gallagher had to say.
Height: 6’1
Position: Right-handed pitcher
Notes:
Ali has tremendous upside and swing and miss stuff.
His fastball sits in the low-90s range and is maxing out at 94 mph with 2500-2600 rpm.
He also throws a curveball at 74-76 which is between 2700-2900 rpm, making that an above average major league pitch.
His slider has improved quite a bit over the last few months, having more north and south movement allowing him to, when he locates it, get swing and miss with chase, particularly to right-handed hitters. His slider sits around 78 mph.
His fourth pitch, and which has helped him get more swing and miss against left handed hitting is his split finger. It’s 82-85 mph with low spin that, when thrown properly, falls out of the zone with effect.
Ali will have the ability to succeed at the next level by continually working on his command.
If he can land his off-speed pitches for strikes, he makes for a very difficult at bat for both lefties and righties. The swing and miss stuff is there. Execution will take him to the next level and will be exciting to see where he will be at in a few years.
What Tanner Says
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I know that I am still learning the art of pitching. I’ve always been able to throw reasonably hard for my age group but as I’ve gone up through the grades I am constantly being reminded that a good fastball isn’t enough.
In the past 12 months I’ve been lucky to share a season with the Adelaide Giants pitching staff and Team Australian players and coaches who have gladly shared their experiences and advice on the mental side of pitching. Which is great because it’s something that I know I need to keep working on.





























