"Have I got time for this?" is the question that stops most people entering a 70.3, and the distance has picked up a reputation it does not quite deserve.
People hear "half Ironman" and picture someone with no job, no children and a lot of Lycra.
Most of the people I coach are the opposite of that. Leadership roles, young families, a diary that does not care about your training plan.
BLUF: 6 to 8 hours a week, done consistently for 20 weeks, gets a normal person to a 70.3 finish line in good shape. It is not the fastest way. It is the way that fits a real life.
What the evidence says about "enough"
Most guidance lands on at least six hours a week, with eight to ten preferable. And a study following first-time half-iron finishers found an average of about 410 minutes a week, producing an average finish around 6 hours 28 minutes.
That is under seven hours a week. So the honest position is: six is workable, eight is comfortable, and more than ten starts costing you elsewhere in life.
The week that works
Seven sessions, potentially one recovery day (but not absolutely vital), one properly long day. Nothing exotic.
- 2 swims (30 to 45 minutes each). Technique focused. This is the cheapest sport to improve at when you are short on time.
- 2 bikes. One short and hard midweek, on the turbo if that is easier. One long ride at the weekend, building toward 3 hours.
- 2 runs. One easy, one with some quality. Long run building toward 1 hour 45.
- 1 strength session (non-negotiable) 45-60 minutes, tagged onto another day.
That is around 6 hours in a normal week and 8 on a big weekend. It flexes.
What to protect, what to cut
This is where time-crunched training is won.
Protect these:
- The long ride. If one session survives your week, make it this. It builds the aerobic base the whole race sits on.
- Consistency in the swim. Two short swims beat one long one, every time. Skills decay quickly.
- Your easy days being easy. When time is short, the temptation is to make every session count by making it hard. That is how busy people get tired and stay slow.
Cut these first:
- Junk mileage in the middle. Neither easy enough to recover, nor hard enough to develop.
- The second long run. One is plenty at this volume.
- Anything you are doing because your Garmin or Strava or your favourite “influencer” suggested it.
Making it fit around real life
Here's what to do:
- Put the sessions in the diary like meetings. Same slots each week. Decisions cost willpower, routine does not.
- Use the turbo without guilt. An hour on the trainer at 5:30am is worth more than a three-hour ride you never do.
- Commute if you can. Riding or running to work turns dead time into training time.
- Brick a session together. A 20-minute run straight off the long ride teaches your legs the feeling, and costs you very little extra time.
- Plan the week on a Sunday. Look at what is actually happening, then place the sessions around it rather than pretending the plan lives in a vacuum.
When a week goes wrong
And it will. Work travel, a sick child, a bad night's sleep. That is not a failed plan, that is a normal training block.
Ok, no worries… when you miss sessions, do not try to cram them back in. Pick up where the plan is, not where you wish you were. Missing three sessions costs you very little. Trying to make them all up in two days costs you a lot.
The key message here is: better to be consistently good, than sporadically great.
Know what you are training for
Time-crunched athletes get the best return when the training is specific to the actual course. A flat, windy race asks for different work than a hilly one.
Try this: pick your race, open its guide in our Event Strategy section, and use the pacing calculator to see where your current numbers put you. It shows you the predicted splits and your cut-off margins, so you can train the thing that actually needs attention.
The bottom line
You do not need to be a full-time athlete to finish a 70.3. You need about six to eight honest hours a week, twenty weeks of them, and the discipline to keep the easy days easy.
The best way to get ahead, is to get started.
If you want a hand shaping your week around the life you actually have, don't sit on it, let me know.