Parkinson's Won't Write the Final Chapter: David Walker's Triathlon Journey

At 76, David Walker is not just racing against time but against a diagnosis that many would consider a stopping point. With Parkinson's disease as his silent companion, he is gearing up for his final triathlon — not out of necessity, but out of defiance. This is his story of resilience and determination to write his own ending.

There's a quiet kind of bravery that doesn't seek attention. It doesn't boast or demand recognition. It simply stands at the start line, adjusts its goggles, and dives into the water. This is David Walker.

At 76, with Parkinson's disease, Walker is preparing for his last triathlon at the T100 race in Vancouver. This moment wasn't handed to him; he chose it, fought for it, and trained for it with a tenacity that he describes as three to four times harder than anything he's faced before. And this is a man who has conquered marathons in Boston, New York, and Paris.

This isn't a tale of a man bravely facing illness. That would miss the essence of Walker's journey. This is a story about agency — about a person who looked at a life-altering diagnosis and decided that it wouldn't be the one to dictate his narrative.

From Marathons to Triathlons at 70

Some athletes spend their lives building towards a peak. Walker spent his life building towards a different sport altogether.

Already a seasoned marathon runner, Walker stumbled upon triathlon by chance. A poster in Mexico sparked his curiosity. He bought a bike, found a swim coach, and embarked on a new journey.

"For three months, she tried to make sure I wouldn't drown. That was where it started."

His first 70.3-distance race was a birthday gift to himself. On November 3, 2019, Walker turned 70 and crossed his first triathlon finish line.

"My gift to myself was my first 70.3," he chuckles.

He finished third in his age group, realizing he was the youngest in that category — because it was his birthday.

"I figured out I'm at least the youngest in that age category, because it's my birthday. There were six, seven other guys, and I beat the ones closing in on 75. That stuck with me."

It was a moment that resonated deeply. Third place in your first triathlon, on your 70th birthday, at the youngest eligible age in your division — that's not beginner's luck. That's competitive spirit finding a new arena.

A Diagnosis That Didn't Define Him

A few years after his triathlon debut, Walker was diagnosed with Parkinson's disease. This progressive disorder affects dopamine-producing neurons, leading to motor symptoms like tremors and rigidity, as well as cognitive and mood changes. For many, such a diagnosis signals an end to beloved activities. Walker saw it differently — not by denying its reality, but by refusing to let it take control.

By 2025, Walker had decided to retire from racing. The disease was progressing, and the decision felt right. Then came a call from the T100 Vancouver race organizers.

"These rascals said, 'What do you think of doing another one?' I told them, 'If you come back to Vancouver, I'm going to do one more.' And they got me."

One more race. On his terms. In his way.

Walker's clarity is striking. He doesn't pretend Parkinson's isn't winning the long game. He's clear-eyed about that.

"I do not want Parkinson's to beat David. I got a diagnosis of Parkinson's disease, but I was still David Walker. The diagnosis doesn't change my determination. Parkinson's disease is going to be with me the rest of my life — it's going to win, it's a master. But tomorrow is important to me, that I take one more win from this disease. It keeps taking things from me, and so tomorrow I'm going to win one more for David."

This distinction — between the disease and the person — is crucial. He isn't claiming a cure or pretending the race will be easy. He's asserting that he is not his diagnosis, and there's still ground to reclaim, one race at a time.

Training Against an Invisible Opponent

Most endurance athletes talk about the physical grind of training. Walker's challenges are harder to see and explain.

"The training is three to four times more difficult than anything I've done. I've done Boston, New York, Paris, you name it. But now I have to really think — where do I put my foot? How do I bring my foot up? And because I lose my rhythm in the water, how do I —"

He pauses.

"It's three to four times harder in my head to do the training. That can fatigue me. But that's no excuse. That's what happens on the inside of a Parkinson's person that you have to overcome."

The swim will be Walker's greatest challenge. Bradykinesia — a Parkinson's symptom causing slowness of movement — disrupts his rhythm. In open water, this has immediate consequences.

"I'm not getting enough dopamine from one side of my body to my weak side, and that immediately breaks up the rhythm. And when you break up the rhythm, you start drowning in your head. You know how it goes. So if I can do the swim, I can do it. I can do it."

That repeated phrase — like a personal promise — says more than any training log could. Walker knows the swim. He's mapped it in his mind. He's worked through the fear. And he's going to get through it.

Research supports the idea that exercise can be neuroprotective for Parkinson's patients, helping maintain motor function and quality of life. Walker may not know the clinical literature, but he's living the principle.

No Tandem, No Draft — Just Company

One of the most telling aspects of Walker's approach is what he's refused.

Many events offer modified formats for athletes with disabilities — tandem bikes, drafting allowances, additional support. Walker wants none of it.

"I do not want anything special in this race. I don't want to be able to draft. I don't want a tandem. I don't want anything different. This is David Walker, retiring from a real triathlon."

The word "real" is significant. For this retirement to mean what Walker needs it to mean, the race must be genuine. No asterisks. No footnotes. Just a man, a course, and the same rules as everyone else.

His only concession is company. His race-day supporter and coach, Itzel, will stay near him — not for competitive advantage, but for safety. Walker is precise about this distinction.

He has accepted support. He has refused accommodation. That line, for him, is the difference between competing with Parkinson's and surrendering to it.

Racing for Something Bigger Than Himself

Walker's final race was never just about Walker. That's not who he is.

Alongside personal goals, he's raising funds for Parkinson's Canada — supporting research and patient programs. But his motivation goes beyond writing a check. He's thought carefully about what his participation communicates to others with Parkinson's.

"I can do this — but why not add some meaning to it? The meaning I can bring is, number one, to help other 'Parkies' see that they can get off the couch. But two, to raise awareness to others who don't understand about this disease, and to get money coming in to help Parkinson's Canada do what they do — the amazing research they do across Canada."

The term "Parkies" is affectionate, insider shorthand. It signals he's speaking from the community, not about it. He's not a healthy observer describing what Parkinson's patients could theoretically do. He's one of them, lining up at a start line, and that changes everything about the message.

"So it adds a little more, that when I'm retiring myself, I've added some value in partnering with Parkinson's Canada."

The phrase "adds a little more" is telling. Walker isn't inflating this element. He's not positioning his race as primarily a fundraiser. The personal challenge is real and it comes first. But layered on top of that achievement is an opportunity to pull others forward — to show them that the couch is not inevitable.

That's the message that travels. Not the finish line photo, but the example.

What Comes Next — Life After the Finish Line

For most retirement speeches, the story ends at the podium. Walker's ends somewhere further ahead.

When asked what it will mean to cross the finish line in Vancouver, his answer is notably forward-looking:

"It's going to mean one more, and then it's going to mean the start of next. Next will not be a triathlon — God bless them, they're doing wonderful things with the T100. But it's going to mean everything to be able to get to that finish line. And then, whatever's next, I start next, because this disease is not going to win."

He doesn't know exactly what "next" looks like. But the not-knowing doesn't seem to bother him at all.

"It won't take too long for David to be creative and come up with what's next. You can be assured it will be a goal that matches who I am — smaller than a triathlon, but bigger than anything any other Parkie can do. If that makes any sense."

It makes perfect sense.

Walker isn't retiring from competition. He's retiring from one specific competition, with full intention of beginning something else. The goal will be different — smaller in scope, perhaps, but not in meaning. The disease doesn't get to decide when David Walker stops setting goals. That decision belongs to David Walker.

What This Story Teaches the Rest of Us

Walker's story resonates beyond endurance sports because it speaks to something universal: the human need to define ourselves on our own terms, especially when external circumstances try to do it for us.

• Identity transcends diagnosis. Walker's insistence — "I got a diagnosis of Parkinson's, but I was still David Walker" — is a template for holding onto yourself when illness or adversity threatens to swallow your self-concept. The disease is something he has. It's not who he is.
• Agency matters more than outcome. Walker knows Parkinson's will eventually win the long-term battle. He isn't racing to escape that reality. He's racing to maintain authorship of his own story for as long as possible. The choice of when and how to retire is a form of freedom.
• "One more" is a powerful philosophy. Rather than framing his situation as an irreversible decline, Walker focuses on the next achievable win. Not the whole war — just tomorrow's battle. That reframing is accessible to anyone facing a long-term challenge.
• Meaningful challenge is part of living. Walker's approach challenges the assumption that people managing chronic illness should step back from strenuous goals. For him — and perhaps for many others — the goal is the medicine. The pursuit of something hard keeps him engaged, motivated, and present.
• Retire before you're forced to. By choosing to retire on his terms, before Parkinson's makes the choice for him, Walker preserves the integrity of his athletic identity. He will end his triathlon career as a competitor, not a casualty. That choice, and the dignity it carries, belongs entirely to him.

A Final Word

David Walker will swim, bike, and run through Vancouver because he decided to — not because anyone told him he could, not in spite of a diagnosis, but as a direct expression of who he has always been.

He started triathlon at 70 with a swim coach tasked with preventing him from drowning. He competed at 76 with Parkinson's disease working against every stroke and every stride. He raised money for research that might help the next David Walker somewhere down the road.

And when he crosses that finish line, he'll already be thinking about what's next.

If you know someone living with Parkinson's disease — or anyone who has been told, implicitly or explicitly, that their best days are behind them — share this story. Not because it promises easy answers, but because it models something better: the refusal to let anyone else decide when your story ends.

You can learn more about Parkinson's disease research and support Parkinson's Canada at parkinsons.ca.

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Source: slowtwitch.com