Do you know if you are
training right,
right now?

Treni is a coach-led training guide for runners on road and mountain trails. The system reads every run from Strava, Garmin or your watch: heart rate, intervals, elevation and how it felt. You need a heart-rate watch that connects to Intervals.icu: Garmin, Polar, Suunto, Coros or Wahoo. A coach stands behind every piece of advice you get. One goal: lasting progress without injury or losing the joy of it. It starts with the easy runs actually being easy.

Sound familiar?

Most runners train harder than they think

• "Easy" is rarely easy

  The secret is simple, but hard to follow. Generic programs don't know what your body has actually done in recent weeks. They don't see that your "easy" is actually fairly fast, that last week turned hard, or that the long run grew too fast.

  Treni helps you see whether you hit the mark on each run.

• The injury comes first

  The most common reason progress stops is not too little training. It is too much, too soon. Overuse injuries announce themselves in the training data before you feel them in your legs. But someone has to read it, and tell you what to change next week.

  Treni helps you catch the signs early, and speaks up before they become an injury.

• Alone between runs

  A coach who sees you every week is reserved for the few. The rest are left with the watch, the Strava graphs and gut feeling, guessing whether they are running easy enough.

  Treni helps you keep a coach in the loop every week, without having to afford one of your own.

The difference

Static plans work, until life happens

Then you caught a cold in week 2. Work took a week. Your body said no on a Thursday.

A plan that lives, for runners who live , not just the well-trained runner static apps were built for.

The race calendar

🏁 Do you know which race is next?

Road, trail and mountain races across Norway, with a filter for Northern Norway. Date, place and registration link, fetched automatically from the timing system and updated every day. The calendar itself is in Norwegian. Find your next race, sign up, and train right towards it.

Road or mountain

Two worlds, one guide fluent in both

Common to both: the same safety rules, the same coach, and many runners do both. The guide sees what surface each run was on, and judges it accordingly.

How it works

Simple on both sides

It is not how much you run that injures you. It is how much more than your body is used to.

The principle behind every single review. Feeling fit is not injury protection.

Concretely, on two levels: your week is measured against the average of the last four and kept inside the safe band (80 til 130 %), a precautionary frame for steady progression (Gabbett 2016; Hulin 2016). And every single run is measured against your longest run in the past 30 days, because a 2025 study (5,205 runners) showed that is where the injury risk actually sits. Both guards, together with the coach's eye.

• 76 til 85%

  of your training time easy, the rest hard. That is how fitness is built

• 0 til 15%

  maximum volume increase per week. The corridor follows your level, not one rule for everyone

• All day

  your runs are read and My page updates, without you logging anything

• 39

  runners in Treni now, on road, track, trail and ultra. Everyone has their own page, and a plan built on their own runs

The science

Research at the base, coaching experience on top

The advice isn't guesswork. Every principle in the guide can be traced to published research or documented coaching practice, and we always say which one it is.

• The model corridor, counted in time

  The world's best endurance athletes place 80 til 90% of their endurance training in easy zones. The guide measures your distribution every week, in time, not session count, and speaks up when the grey zone steals from the easy. Your room is 76 til 85% easy, 15 til 24% quality.

• No leaps, documented

  A large study of 5,205 runners found roughly 60% higher injury risk when a single run leaps past the longest your body has done in the last 30 days. The guide catches the leaps before they happen, in the plan, not in hindsight.

• Terrain measured right

  In the mountains, kilometers lie. Trail sessions are judged on time and elevation , up and down, the way coaches with mountain backgrounds do it. A "short" run with 1,600 meters of climbing is treated as the hard session it is.

• Heart rate + feel, not blind faith in the watch

  The guide knows the blind spots of heart rate: slow response on tired days, drift on long runs. It teaches you to never chase heart rate. Your zones are calibrated against your own data and continuously re-checked.

Sources incl.: Sandbakk et al. 2025 (Sports Medicine. Open) · "How much running is too much?" BJSM 2025 · Seiler & Kjerland 2006 · the coaching team's book on mountain running

What you get

Like having a coach who sees every run

Everyone else requires you to open an app. Treni delivers on its own, when it matters. That is the difference between a tool and a service.

• 📅Your weekly plan, ready before the week starts Concrete sessions with pace, heart rate, intervals and rests, built on the week you actually ran. Finish your week by Sunday evening and next week's plan lands the same evening, otherwise Monday morning.
• 🔕Follow-up without the noise The system reads your runs every day, but you hear from us when it matters: your weekly plan on Sunday evening or Monday morning, the day's session at 07:00 on training days (turn it off or move it yourself), and a status on Thursday, with praise when you nail it and a friendly nudge when the run got harder than planned. The rest of the week: quiet (and My page whenever you want a look).
• 🤝A named coach Not an app alone. The advice is reviewed by a human who knows you, and health questions always go to professionals, never to a machine.
• 💬In your language All guidance in English or Norwegian, your choice.
• 📊My page, your own training overview Your load in plain words, the bars behind it, and every run with the advisor's note. Plus next week's plan, day by day. Personal link, updated through the day. Add it to your home screen and it opens as an app, with notifications on your phone when a new plan, a message from your coach or a new run is in. See what it looks like →
• 📅Calendar, your own sessions and strength Move sessions yourself with drag and drop, add strength, trail runs or cycling as your own sessions, and see it all in one plan. Strength comes with the coach's templates and an exercise bank with animations. Plus the race calendar: 400+ races in Norway, and your plan is built towards the one you pick.
• 👟Your shoes, tracked Tag your shoes on Strava activities and Treni counts the kilometres per pair, warning you when one nears retirement. Before every race you get shoe advice from your own rotation, matched to distance, surface, course profile and the weather forecast. Need a new pair? One tap registers it.
• 🔒Your data stays yours Stored locally with the coach team, never sold. Disconnect any time. Read the privacy policy.

The e-book

📚 "Training for Mountain Running"

Written with one of Norway's most experienced mountain runners , a physiotherapist and skyrunning World Championship participant. Chapters 0 to 13 are published. Test runners get the chapters first, right on their own page, with a short quiz after each chapter.

• 🧭 Training philosophy
• 🫀 Intensity and zones
• 🧱 The foundation
• ⚡ Interval training
• 🏔 Distance training
• 🏁 After the finish line
• 🥾 Technique
• 💪 Strength
• 🪜 Stair training
• 🦵 Muscle soreness
• 🌲 Recovery and varied terrain
• 🧩 Training planning
• 🍂 A new mountain season
• 🏆 Race season and peaking
• 🥤 Race-day nutrition

Test runners say

Real words from the runners testing now

Quotes are from the test runners' own messages, translated from Norwegian. We keep the names to ourselves.