4 Weeks to Go — Ironman Cairns: Calf Injury Scare and Managing Risk

Four weeks to go. Twenty-eight days until the cannon goes off in Cairns.

This week started brilliantly — quality sessions on the bike, a strong wetsuit swim, and a solid long run. Then Friday's easy recovery run delivered a sharp reminder that at 57, the body doesn't always cooperate with the plan.

The Week That Was

Heading into this week, the legs were feeling good after last week's recovery and the body was responding well. The plan was straightforward — get the key sessions in, keep the intensity controlled, and keep building towards race day.

That plan lasted until Friday.

Day-by-Day Breakdown

Monday — Rest Day

Complete rest. Nothing exciting, but exactly what was needed. Just letting the body absorb the previous week's work and build fitness in its own way.

Rest days aren't lost days — they're where the adaptation actually happens.

Tuesday — 2hr Indoor Bike (Cairns Course) + 3,500m Wetsuit Swim

Morning: Rain in Brisbane, so I headed to the indoor setup — Wahoo Kickr Accord smart trainer with an Elite riser on the front, running through the actual Cairns bike course on ROUVY via the smart TV.

Two hours on the course itself. It's a brilliant way to familiarise yourself with what's coming — the elevations, the terrain, the feel of the ride. And from what I can see, the course looks absolutely stunning. The elevation profile doesn't look overly difficult either, but we'll find out for certain in a few weeks.

Lunchtime: 3,500 metres in the wetsuit at our local 50-metre indoor pool, heated to 28°C. This is part of my weekly heat acclimatisation protocol heading into Cairns.

The swim at Cairns will be a wetsuit swim — water temperature around 24°C — and the wetsuits are mandatory partly as a precaution against box jellyfish, even though it's not peak season. As triathletes, none of us are going to complain about a wetsuit swim.

The key is managing heat. In a warm pool with a wetsuit, it's about staying controlled — almost a half catch-up stroke, letting the wetsuit do its job, keeping the heart rate in Zone 2, and just rolling through the water. Very happy with the pace for those 3,500 metres.

I'm very comfortable with where my swim is heading into Cairns, even though I'm only swimming once or twice a week at this stage.

Wednesday — 2hr 25min Zone 2 Long Run

This is my long run for the week, and I've spoken about this adjustment a few times now. Historically, I did my long ride on Saturday and long run on Sunday. At 57, I was struggling to recover enough from the ride to get the best out of the run.

So now I've split them — long run mid-week, long ride on Saturday — and that extra recovery time between the two has made a noticeable difference.

Two hours and 25 minutes, all in Zone 2, concentrating on form and practising race nutrition. I took 90 grams of carbs per hour during the run and finished feeling good.

I deliberately capped it at 2:25 rather than pushing longer. This close to Cairns, the risk of injury increases as you fatigue on longer runs, especially at 57. The fitness is there — now it's about protecting it.

The hay is in the barn. At four weeks out, you're not building new fitness — you're preserving what you've built.

Thursday — 90min Indoor Bike (3 × 18min @ 175W)

Back on the Kickr for a structured session I've programmed myself and loaded into ROUVY in ergo mode — still riding the Cairns course, but with power targets locked in.

The session:

I'll likely ride fractionally higher than 175W on race day, but what's really encouraging is where the heart rate sits during these efforts — mid to low Zone 2 for all three reps, and it's not even building in the third rep. That's a genuinely good sign of where the aerobic engine is at.

All that Zone 2 work is paying off.

Friday — The Calf Strain

This is where the week turned upside down.

The plan was simple — a gentle 30-minute Zone 1 recovery run. Nothing more. It's funny how sometimes it's the easy sessions where things go wrong.

About 17–18 minutes in, running down towards Woody Point on the peninsula, my right upper calf started knotting up. Within a few minutes, it had tightened so badly that I was reduced to a walk.

In horse racing terms — and for those of you who know the industry — I was about three out of five lame on the off side. For the non-horsey people: it really, really hurt.

I hobbled home, elevated the leg immediately, and got ice on it straight away.

The good news: I don't think any structural damage is done. It feels like a strain rather than a tear. But the reality is that if I'd pushed through it, I could have turned a minor issue into something that would have completely upended my race.

Four weeks out from an Ironman, the smartest training you can do is sometimes no training at all.

Saturday — Complete Rest

I had a longer ride planned, but the calf needed the best possible chance of recovery. So I took the full day off. No training, no "just a quick spin" — proper rest.

Sunday — 60min Zone 1 Indoor Ride + Work Shift

Jumped on the indoor trainer for a very controlled 60-minute Zone 1 ride. The goal wasn't fitness — it was putting blood through the calf without loading it. Gentle, easy spinning.

Later in the day, I had a long work shift at the harness racing at Marburg. The walking involved was actually useful — light movement, no impact, and by the end of the day the calf felt significantly better with no soreness.

The Numbers

Managing Risk at 57

This week is a perfect example of why experience matters more than ego in endurance sport.

At four weeks out, I'm not going to lose significant fitness from a few days off. But I could absolutely do race-ending damage by pushing through a calf issue. The maths is simple:

• Risk of resting: minimal fitness loss
• Risk of pushing through: potential calf tear, no Ironman

The Tuesday swim showed the calf is still slightly tight in the water, and I'll do a bike this afternoon to assess further. Tomorrow's run will be the real test — if it feels uncomfortable in the first few minutes, I'll pull the pin immediately and switch to deep water running at the pool instead.

No ego. No heroics. Just smart management.

Key Takeaways This Week

1. Split your long sessions mid-week and weekend — the recovery between them matters enormously at masters age
2. Practise race nutrition in training — 90g carbs/hour needs gut training
3. Indoor training has real value — riding the actual race course on ROUVY builds familiarity and confidence
4. Wetsuit swimming in warm pools doubles as heat acclimatisation work
5. When something goes wrong close to race day, protect the race — you can't train your way to fitness in four weeks, but you can certainly injure your way out of it

Looking Ahead — Week Three

The focus this coming week is simple: assess the calf, manage the load, and don't do anything stupid.

If the calf cooperates, I'll get back to the key sessions — a controlled long ride, some structured bike work, and a careful return to running. If it doesn't cooperate, I'll adapt. Deep water running, easy cycling, and swimming will keep the engine ticking over without risking the calf.

Three weeks to go. The countdown continues.

Watch the full video recap on YouTube: 4 Weeks to Go — Road to Ironman Cairns

Previous week: 5 Weeks to Go — Australian Team Selection and a Shoe Lesson Learned

Related: Why Zone 2 Training Is the Foundation of Triathlon Success

Free resources: Training Plans, Nutrition Guides, and More

Questions or comments? Get in touch