The engine behind your plan.
One model plans your training and your fuel together, tuned to your fitness, your goal, and how the day is actually going. It handles road and gravel, ultra-distance cycling, ultra trail, bikepacking, and high-performance racing, by power, heart rate, or feel. Every number traces to published sport science. None of it is AI or guesswork.
Load you can trust, intensity that is earned.
Fitness, fatigue, and form, modeled from every session, so the plan pushes when you can take it and eases when you cannot, and re-sequences the moment your goal or your week changes.
Load, measured honestly
Every session is scored, then tracked as fitness, fatigue, and form, so training builds without digging a hole.
Mostly easy, sometimes truly hard
Most of your volume stays easy to build the aerobic engine; the hard days are hard and specific, following the interval research.
Sequenced toward your goal
Base, build, peak, and taper are ordered toward your event, and re-sequence the moment the date or the goal moves.
It reads your morning
A ten-second check-in and your recent sessions set today: push when you are fresh, protect the block when you are not.
Fueled to the gram, for the work in front of you.
Carbohydrate, protein, and fat set from your body and your day, then delivered on the bike at a rate your gut is trained to take. Fuel and training come from the same model, so they never contradict each other.
Enough fuel, first
The plan protects energy availability as a floor before anything else, because under-fueling, not over-eating, is the endurance athlete's default failure.
Fuel for the work required
Carbohydrate scales to the day: lean when it is easy, big on the long and hard days, and placed around the work.
As much as your gut can take
In-session carbs use a glucose-to-fructose blend to clear the gut's transporter ceiling, and your tolerance is trained up so race day never surprises you.
Protein that actually builds
Enough total protein, spread evenly across the day for continuous repair, held independent of how hard you rode.
Math you can follow, not a guess.
The apps flooding this space call themselves AI coaches. An AI can hallucinate: it can hand you a confident number that is simply made up. Train Fondo's engine cannot.
Every session and every gram is computed from a named model and your own data, so there is always a real answer for why today looks the way it does.
Nothing is invented and nothing is hidden. The same inputs give the same plan every time, and you can check the science behind any of it.
The engine is fast and consistent, but it is mathematics, not a chatbot writing plausible sentences. It will not surprise you with a number it cannot justify.
Named models, linked so you can check them.
Nothing here is invented. Every model under the hood is one endurance coaches and sports scientists actually use, and each links to its primary source.
Every session feeds a fitness-and-fatigue model, so the plan builds you up without digging a hole.
Read the sourceMost volume stays genuinely easy and the hard days are truly hard, the distribution the research keeps pointing to.
Read the sourceIn-session fuel uses a glucose-to-fructose blend to push past the gut's single-sugar ceiling.
Read the sourceThe plan defends energy availability as a floor, because under-fueling is the endurance athlete's default failure.
Read the sourceProtein targets and spacing follow the dose-response work on recovery from endurance exercise.
Read the sourceHeavy, low-rep strength is programmed to improve economy without adding bulk.
Read the sourceTrain Fondo is a training and nutrition tool, not medical advice. If you have a health condition, talk to a qualified professional before making big changes.
The method, answered.
Ride with a plan that keeps up
Create your account, set your goal, and get today's session and fuel in minutes.