So the marathon is looming and your training hasn't gone exactly to plan. Don't panic. Whether life got in the way at week 8 or you're jumping in on a charity place with six weeks to go, here's what you actually need to know.
Assess where you are honestly
Before you do anything else, work out what you've got. Six weeks? Ten weeks? Less? The answer changes your strategy significantly. If you're inside four weeks, the goal shifts from building fitness to protecting what you already have and arriving at the start line healthy. If you've got six to ten weeks, there's still meaningful work to be done but you need to be smart about it.
Don't try to cram
The biggest mistake late starters make is trying to compress 16 weeks of training into whatever time they have left. That's how injuries happen. High mileage and intensity spikes are the enemy right now. A steady, progressive approach even a compressed one will serve you far better than hammering 20-mile runs back to back.
Prioritise your long run above everything else
If you can only do one quality session per week, make it the long run. Build up steadily aim to get at least one run of 15+ miles under your belt before race day if time allows. Run it at a comfortable, conversational pace. The goal is time on feet, not speed.
Add one tempo or interval session per week
Two quality sessions a week is plenty. Alongside your long run, one mid-week session of 800m repeats at marathon pace or a tempo run building up to pace will keep your legs sharp without burning them out.
Get your nutrition dialled in now
Late training is the perfect time to test your race-day nutrition strategy. Practice fuelling on your long runs exactly as you plan to on the day. Bio-Synergy Electro-Lite is essential for keeping hydration and mineral balance on point during longer efforts something that becomes critical over 26.2 miles in race conditions. Pair that with Pure Energy for sustained carbohydrate fuel mid-run, and test both in training before you ever rely on them on race day. Joint Formula is worth considering too if your knees and hips are taking a battering from ramped-up mileage.
Protect your joints and recovery
More miles in less time means more stress on your body. Prioritise sleep, keep easy runs genuinely easy, and don't skip your warm-down. If you're feeling niggles, address them immediately a physio visit now is worth ten in the week before race day.
Week before: do less, not more
Your last long run should be no later than three weeks out. After that, taper. Cut mileage, keep intensity light, stay off your feet where possible and trust the work you've done. The fitness is already there your job in the final week is simply not to undo it.
On race day: start slower than you think you should
This is the most repeated piece of marathon advice for a reason. Go out at what feels like an embarrassingly easy pace for the first five miles. You will thank yourself at mile 20. If you've got anything left in the tank after mile 18, use it then.
The honest truth
A last-minute marathon won't be your fastest. But with smart training, proper fuelling and the right mindset, it can absolutely be one of the most satisfying things you ever do. Get to the start line healthy, respect the distance, and enjoy every single mile of it.
Prepare for your next race with our comprehensive guide.
