Age is No Barrier: Susan's 48th Long-Distance Triathlon

A retired math teacher from St. Johns County is proving that dedication doesn't have an expiration date — and her 48th long-distance triathlon finish line is waiting.

Picture this: it's race morning in Jacksonville, Florida. Hundreds of athletes nervously check their gear, adjust their goggles, and visualize the 140.6 miles ahead. Among them stands Susan Wallis — calm, focused, and about to compete in her 48th long-distance triathlon at the age of 73.

While most of us are still debating whether to sign up for our first 5K, Susan has been lining up at start lines for over four decades. She's not a professional athlete with a corporate sponsor or a full-time coaching staff. She's a retired high school math teacher from St. Johns County who decided, somewhere along the way, that the finish line was always worth chasing — no matter how many years were on the clock.

Her story isn't just inspiring. It's a masterclass in what happens when you put your mind to something and truly go after it.

Four Decades at the Start Line

From Classroom to Course: Who Is Susan Wallis?

Susan Wallis spent her career shaping young minds as a math teacher at Terry Parker High School in Jacksonville. She retired in 2007 after decades in the classroom — but retirement, for Susan, was never about slowing down.

For more than 40 years, she has been a fixture in the triathlon community, racing consistently through her 40s, 50s, 60s, and now well into her 70s. The Jacksonville long-distance triathlon event in May 2026 marks an extraordinary personal milestone: her 48th completion of the full-distance triathlon format.

To understand just how remarkable that number is, you first need to appreciate what a full-distance triathlon actually demands.

What a Full-Distance Triathlon Actually Involves

A long-distance triathlon — the kind Susan has completed 47 times already — is one of the most grueling single-day athletic events in the world:

• 🏊 2.4-mile open water swim
• 🚴 112-mile bike ride
• 🏃 26.2-mile run (a full marathon)

Total: 140.6 miles — all in one day

Most participants train for 12 to 20 weeks minimum, logging anywhere from 10 to 20 hours of training per week across all three disciplines. Race day can last anywhere from 8 to 17 hours, depending on the athlete. There's a mandatory cutoff time, which means every mile matters.

Completing one of these races is a life achievement for most people. Susan has done it 48 times.

A Career Built on Consistency

What makes Susan's journey so compelling isn't a single dramatic achievement — it's the compounding effect of four-plus decades of showing up. She started racing when women's participation in endurance sports was far less common than it is today. She raced through her teaching career, balancing lesson plans and long training rides. She kept racing after retiring from education. And she's still racing now, in her eighth decade of life.

There's a quiet lesson in that timeline that goes far beyond triathlon.

The Mindset Behind the Miles

What Teaching Math Has to Do With Finishing Triathlons

It might seem like a stretch to connect a math classroom to a 112-mile bike course — but the skills are more similar than you'd think.

Math teachers live by structure. They break complex problems into manageable steps. They repeat foundational concepts until they become instinct. They measure progress with precision and adjust their approach when something isn't working. That's also exactly how endurance athletes train.

Susan's background in education almost certainly shaped her approach to the sport. Long-distance triathlon training is fundamentally about periodization — building fitness in structured cycles, peaking at the right time, and executing a race plan with discipline. For someone who spent decades teaching young people to trust the process, that framework would feel familiar.

Goals That Grow With You

One of the most underrated aspects of Susan's story is the evolution of her goals over time. At 33, her goals might have centered on speed and podium finishes. At 53, perhaps it was about consistency and managing a full schedule. At 73, the goal of completing her 48th race carries a weight that no age-group podium can replicate.

Great athletes don't just set goals — they let their goals evolve with them. The willingness to redefine what success looks like at each stage of life is a form of wisdom that keeps people in the game long after their peers have stepped away.

This is something Susan's story teaches us without even needing to spell it out: the goalposts can move, and that's not giving up — that's adapting.

What Keeps You Going When Everyone Else Stops?

Here's the honest truth about endurance sports in your 70s: most of the people you started racing with have retired from competition. Your recovery takes longer. Your body sends louder signals. The temptation to call it a career is real and reasonable.

And yet, Susan Wallis keeps going.

The driving force, based on everything we know about her, comes back to one simple philosophy: put your mind to something and go after it. That phrase sounds almost too simple — until you realize it's the exact mindset that separates athletes who last from those who fade. Motivation fluctuates. Discipline compounds. Forty-plus years of showing up is built one training session at a time.

Training at 73: The Physical Reality

Smart Training Beats Hard Training

Here's what experienced coaches and sports medicine professionals consistently tell us about training older endurance athletes: the principles don't change, but the execution has to. Recovery becomes the training. Intensity must be earned, not assumed. And listening to the body becomes less optional and more essential.

A typical training week for a long-distance triathlon competitor involves:

Discipline	Weekly Volume (Approximate)	Key Focus
Swimming	3–5 hours	Technique, shoulder preservation
Cycling	6–10 hours	Aerobic base, low joint impact
Running	3–5 hours	Gradual build, injury prevention
Strength/Mobility	1–2 hours	Joint stability, longevity

For a 73-year-old athlete, recovery days are not optional — they're part of the training plan. Sleep quality, nutrition timing, and mobility work become as important as the swim intervals or long run.

The Gear That Helps

Modern endurance sports technology has made it easier for athletes of all ages to train smarter:

• GPS watches and heart rate monitors help athletes avoid the common mistake of training too hard, too often — a risk that increases with age.
• Power meters on bikes allow cyclists to train at precise intensities rather than guessing by feel.
• Recovery tools — from compression gear to foam rollers — support the between-session work that keeps athletes on the start line.

Whether Susan uses all of these tools or relies on decades of intuitive body knowledge (or both), the point is that the resources available to older athletes today are better than ever.

Nutrition for the Long Haul

Fueling a 140.6-mile race at 73 is a careful science. Older athletes generally need to:

• Prioritize protein to support muscle maintenance and repair.
• Stay ahead of hydration and electrolytes, as thirst sensation can decrease with age.
• Focus on anti-inflammatory foods to support joint health and faster recovery.
• Time carbohydrate intake strategically around long training sessions.

The CDC notes that regular physical activity helps prevent and manage many chronic conditions — and for athletes like Susan, nutrition is the partner to that activity that makes long-term performance sustainable.

Why Susan Wallis Matters Beyond the Race

Representation in Endurance Sports

Here's something worth saying directly: women over 70 are not well-represented in mainstream sports coverage. When they are featured, the framing often defaults to surprise — "Can you believe she's doing this at her age?" — rather than treating them as the serious, accomplished athletes they are.

Susan Wallis deserves better than that framing, and so does every other athlete in her age group who lines up at a start line.

She's not competing in spite of being 73. She's competing as a 73-year-old athlete with 48 races of experience and four decades of hard-earned wisdom. That's not a feel-good footnote. That's an athletic career.

A Local Hero on a Home Course

There's something uniquely powerful about competing in your home city. The Jacksonville long-distance triathlon isn't just race #48 for Susan — it's a hometown race, surrounded by familiar waters, roads, and a community that knows her name.

For residents of St. Johns County and Jacksonville watching from the sidelines, Susan's presence on course sends a message that transcends the sport: your community produces people who do extraordinary things, and they do it quietly, consistently, and without fanfare.

That kind of local inspiration is irreplaceable.

The Philosophy That Applies to Everything

"Put your mind to something and go after it."

Susan's philosophy, as described in her local news feature, sounds like a bumper sticker. But when you attach it to 48 full-distance triathlon completions spanning four decades — to a woman who balanced a teaching career with serious athletic training, retired from one calling and kept pursuing another — it becomes something much more substantial.

This philosophy works for triathlon. It also works for:

• Starting a business after 50
• Learning a new language in retirement
• Going back to school later in life
• Rebuilding fitness after illness or injury
• Committing to any long-term goal that matters to you

The mechanism is the same. The timeline is yours to define.

What Susan's Story Means for You

Whether you're a seasoned triathlete logging miles in Florida, a beginner in Mexico City wondering if you're too old to try your first sprint triathlon, or someone in their 40s who's been putting off a fitness goal for "someday" — Susan Wallis's story has something for you.

Here's how to take her example and make it actionable:

5 Lessons From 48 Races

1. Start before you're ready. Susan didn't wait until everything was perfect. She started, kept going, and built expertise over time.
2. Let your goals evolve. What you're chasing at 35 doesn't have to be what you chase at 55 or 75. Adaptation isn't weakness — it's longevity.
3. Recovery is part of the work. Sustainable performance over decades requires treating rest as seriously as training.
4. Community keeps you accountable. The triathlon community — local clubs, race events, training partners — creates the social infrastructure that sustains long-term commitment.
5. Consistency compounds. Forty-plus years of showing up, one training session at a time, builds something that no single race day could ever create.

Your First Step

You don't have to sign up for a 140.6-mile race tomorrow. But you can do something today:

• Find a local triathlon club or running group in your city.
• Research a sprint triathlon — the beginner-friendly entry point that covers a 750m swim, 20km bike, and 5km run.
• Set a 90-day fitness goal that challenges you without overwhelming you.
• Browse gear that matches your goals — whether you're just starting out or building toward your next race, having the right equipment matters.

If you're ready to explore what your triathlon journey could look like, start with our curated collection of swimming goggles and race season essentials — gear selected for athletes at every stage of the journey.

Susan Wallis didn't become a 48-race veteran by waiting for the perfect moment. She became one by deciding, over and over again across four decades, that the race was worth showing up for.

At 73, approaching finish line #48 in her home city of Jacksonville, she's not winding down a career. She's writing another chapter in one of endurance sport's most quietly remarkable stories.

Age is not the variable that determines what you're capable of. Commitment is.

Whatever your version of the finish line looks like — your first 5K, your first sprint tri, your first full-distance race, or simply committing to consistent movement for the next 90 days — Susan's example reminds us that the time to start is always now.

What's your next start line? Drop it in the comments below — we'd love to cheer you on.

Inspired by Susan's journey? Explore our guide to getting started in triathlon or find the perfect motivation for the athlete in your life with our gifts for triathletes collection.

#Inspiration

Source: https://www.news4jax.com/video/sports/2026/05/14/at-73-and-still-going-strong-susan-wallis-continues-to-inspire-as-she-gets-ready-for-48th-ironman/

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