A first marathon training plan built around a progressive 16-week framework, with practical guidance for managing the build and recovery.

A first marathon is less about chasing one heroic session than stacking manageable weeks. This 16-week framework is designed for recreational runners who can already run comfortably for about 45 minutes and have been training consistently. The aim is to extend endurance gradually, protect recovery days and arrive at race week healthy enough to enjoy the occasion.

first marathon training plan: Before week one: establish your baseline

Begin with an honest review of your recent running. If three easy runs a week already feel routine, you have a useful base. If not, spend several weeks building that habit first. The Australian Government’s movement recommendations encourage adults to be active most days and include muscle-strengthening work on at least two days each week. Marathon preparation adds considerable load, so ordinary daily movement, sleep and recovery still matter.

Use effort, not ego, to control easy runs. You should be able to speak in full sentences. A watch can help you track time and consistency, but pace is affected by heat, hills, wind and fatigue. See the practical guide at Running Watches Australia, and compare your starting point with RunHQ’s progressive half-marathon plan.

The 16-week progression

Weeks 1–4: settle into frequency

Run four times each week: two short easy runs, one controlled steady session and one long run. Start the long run around 70–90 minutes, depending on your history, and add only a modest amount when the previous week has been absorbed well. Every fourth week, reduce total running and shorten the long run. That lighter week is part of the plan, not a missed opportunity.

Weeks 5–8: build durable endurance

Keep most kilometres conversational. Extend the long run toward roughly two hours and add short sections at a comfortably steady effort, never a race simulation. One or two brief strength sessions can support calf, hip and trunk capacity; RunHQ’s strength plan for runners offers a sensible starting point. Separate harder running and heavier strength where possible.

Weeks 9–12: practise race-day routines

This is the most specific phase. Long runs may progress toward 2.5–3 hours for runners who tolerate them, but duration should reflect experience, pace, health and coaching advice. Rehearse shoes, socks, breakfast, fluids and carbohydrate intake. Sports Dietitians Australia notes that distance runners benefit from matching fuelling and hydration to training demands. Test everything in training; race day is not the place for a new gel or an unfamiliar quantity of fluid.

Carry fluids in a practical way when conditions require it. Reusable options are available from Mizu Australia. Drink to an individual plan that considers weather, sweat rate and access to aid stations rather than forcing excessive fluid.

Weeks 13–14: peak without proving fitness

Your longest or most demanding week should feel purposeful, not desperate. Avoid adding last-minute speed or distance. Practise an even start and a controlled finish, and use RunHQ’s weekly running schedule to protect easy days. If soreness changes your stride or worsens as you run, stop and reassess rather than trying to save the plan.

Weeks 15–16: taper and arrive fresh

Reduce volume while retaining a few short, relaxed pickups. The goal is to shed fatigue, not gain new fitness. Keep familiar meal patterns, prioritise sleep and organise race logistics early. Review the post-run recovery meal builder for simple carbohydrate-and-protein ideas after key sessions.

A sample week

  • Monday: rest or gentle mobility.
  • Tuesday: easy run plus four relaxed strides.
  • Wednesday: short strength session.
  • Thursday: steady or marathon-effort intervals with easy recoveries.
  • Friday: rest.
  • Saturday: short easy run.
  • Sunday: long conversational run with practised fuelling.

Adjust the order around work, family and recovery. The plan succeeds when it is repeatable. Missed sessions do not need to be crammed into the next few days; resume with the next suitable workout.

Conclusion

A progressive marathon build balances enough stimulus with enough restraint. Keep easy running genuinely easy, practise race-day routines repeatedly and let lighter weeks consolidate the work. Consistency across 16 weeks is more valuable than any single impressive session.

Sources and image credit

Health and safety notice: This article provides general information only and is not a personalised training, medical or nutrition prescription. New or returning runners, and anyone who is pregnant, taking medication or living with a health condition, should consult an appropriately qualified health or exercise professional before starting or changing training. Stop exercising and seek appropriate help if you experience concerning symptoms such as chest pain, faintness, unusual shortness of breath, severe pain or symptoms that persist or worsen.