“You’re walking during your marathon?”
“Yep — and I’ll probably beat you doing it.”
If that sounds bold, it is — but it’s also grounded in strategy, science, and real-world race results.
The run-walk method isn’t a survival tactic. It’s a performance strategy used by smart, well-prepared Ironman athletes who want to finish stronger, not just finish.
A Little Story …
I was talking to an athlete recently. Let’s keep him anonymous.
We’ll call him… Shane.
Shane’s been training hard, running strong, and mentally gearing up for his Ironman. But when I suggested using a run-walk strategy for the marathon, he looked at me like I’d just told him to stop wearing socks.
“You want me to… walk? In the race? On purpose??”
Yes, Shane. Yes, I do. Because it could be the best race-day decision you make.
Why Run-Walk Works
The Ironman marathon isn’t just a marathon.
It’s a marathon after swimming 3.8 km and biking 180 km.
That changes everything.
It’s not about “running the whole thing.” It’s about running well – all the way to the finish. And that’s where run-walk comes in:
✅ Reduces muscular fatigue
✅ Maintains better form and posture
✅ Allows consistent fuelling and hydration
✅ Helps regulate heart rate and energy
✅ Breaks the marathon into manageable chunks
✅ Prevents late-race fade and mental collapse
The Numbers: Run-Walk In Action
Let’s break down two sample strategies:
15 min run / 1 min walk and 9 min run / 1 min walk.
Even with walking included, the difference in average pace is minimal – but the benefit to endurance and energy is massive.
15:1 Strategy (Run 15 min, Walk 1 min)
At 5 minutes per kilometre pace, a 15:1 strategy gives an average pace of 5.10 per kilometre.
5.30 min/k is a 5.39 min/k average pace.
6 min/k is a 6.09 min/k average pace.
9:1 Strategy (Run 9 min, Walk 1 min)
At 5 minutes per kilometre pace, a 9:1 strategy gives an average pace of 5.16 per kilometre.
5.30 min/k is a 5.45 min/k average pace
6 min/k is a 6.15 min/k pace
The difference is small. The payoff is big. Especially over 42.2 km.
It Works: Real Results From Real Athletes
Still skeptical? Let’s talk results.
Last season, several of my athletes used the run-walk strategy – and they didn’t just survive the Ironman marathon. They had their best-ever Ironman runs.
I’m looking at Sara, Graham, and Dan – all different backgrounds, different strengths. What they had in common:
- They trusted the plan
- They walked with purpose
- They kept running strong — when most others couldn’t
The result? Personal best Ironman marathon splits.
Walking the Talk
This isn’t just theory – it’s personal.
I used the run-walk strategy in my own racing days and ran:
🕒 3:29 Ironman marathon
🕒 3:37 Ironman marathon
For context: my standalone marathon PB was 3:22.
So yes – I ran just 7–15 minutes slower after a 6+ hour warm-up. And I was smiling at the finish (well … mostly).
Which Strategy Should You Use?
Strategy
Best For 15:1 Faster runners who want longer, steady intervals with minimal disruption
Best For 9:1 Balanced runners, good blend of effort and recovery
Best For 5:1 or 4:1 Slower runners, or those managing fatigue, injury, or pacing risk
Aid Station Walks Easy to follow on race day — run between aid stations, walk through them for nutrition
Pro Tip: Walk with intent. Shoulders tall, arms moving, breathing steady. This isn’t a surrender — it’s a strategic reset.
“But Walking Looks Weak…”
Only if you do it with sad shoulders and a haunted expression.
What actually happens is this: You run strong early. Walk smart. Stay steady. Then in the final 10K, while others are collapsing into aid stations, you’re still moving forward.
You’re the one doing the overtaking. Shane? He’s rethinking some choices.
Final Word
It’s not about who runs the most. It’s about who slows down the least.
In Ironman, consistency is king. Planned walk breaks are an investment in strength, control, and a better finish-line photo.
Try it in training. Track the difference. And don’t be surprised if it becomes your new race-day weapon.
Walk smart. Run strong. Finish proud.
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