UPDATES.

October 2026

Your sessions show correctly on the watch.

• Feature

  You can now listen to your podcast offline, when it is saved for later.

• Improvement

  Session names now include the intensity and the main set, for example Threshold 3×10 min.

• Fix

  Bug with main set duration.

• Fix

  Pool session distance bug.

• Improvement

  In the Session Generator you can now change the time in zone: low, mid., or high.

• Improvement

  Estimated Bike Race Time calculation is more accurate.

• Improvement

  You can now add your tyre type and width to your bike in the garage.

• Improvement

  Tyre Pressure now lets you select your bike and use that tyre set-up.

• Improvement

  Strength workout layout.

• Fix

  Run pace on the watch was a percent of Garmin's estimated threshold. It now uses your WattX run pace.

• Fix

  Ticked sessions stay ticked across devices.

September 2026

Set your numbers once; they travel with you.

• Feature

  The Android app now has home-screen widgets: race countdown, this week's unticked sessions and a coaching note.

• Improvement

  Nutrition Strategy now shows the number of gels and bottles.

• Improvement

  Warm-up and cool-down can be structured, or free.

• Improvement

  FTP, run threshold, and swim pace now sync to Intervals.icu, so you don't have to set them by hand.

• Improvement

  When your long rides match your expected race effort, Analysis will tell you.

• Improvement

  The Race Simulator's Ironman bike target is more accurate, so your predicted bike split is closer to reality.

• Improvement

  The Race Checklist has new items, including a pre-swim gel, derailleur battery, and multi-sport watch charge.

• Improvement

  Clearer session tags on Analysis: Recovery, Endurance, Tempo, Threshold, or harder.

• Improvement

  Structured warm-ups build minute by minute into the session, and cool-downs come back down the same way. Leg openers before hard work are better paced.

• Fix

  Workouts now last as long as the session you built.

• Fix

  Easy parts of a workout stay easy in Intervals.icu. They were being turned into a much harder effort.

• Fix

  On iPhone, the Login button no longer hides behind the notch.

• Fix

  Slowtwitch articles in Tri Pulse now open inside WattX.

August 2026

See whether the work is landing.

• Improvement

  Analysis now shows your current load: last week compared with the four before, labelled Building, Recovering, Working hard, or Overdoing it. Following the plan cannot flag Overdoing it.

• UX

  Clearer weekly summary cards on Analysis.

• Improvement

  Analysis now shows your weekly swim, bike and run volume from Intervals.icu: hours, training load (TSS) and bike normalised power.

• Improvement

  Tap a session to compare similar swims, rides or runs: time, distance, climb, pace or power, and heart rate, with the closest match called out.

• Improvement

  Sport cards now show your best efforts for the period you pick: bike 20′ or normalised power, best run pace (adjusted for hills), and best swim pace.

• Improvement

  Compare a training window to a previous race build or a custom date range, with the same weeks overlaid.

• UX

  Sessions sit under the chart, collapsed by default. The list follows the chart filter, and you can load two more weeks at a time.

• UX

  Your average week now shows how much your volume has grown from the first block to peak. Intensity reads Recovery, Endurance, Threshold, or Above.

• Feature

  Your plan now has a week calendar. Put sessions on the days and times that suit you, add them to your own calendar, or send the week to Intervals.icu (and on to Garmin).

• Improvement

  New "Adjust my plan" option: rebuild your plan from today with a new weekly volume. Your race date stays the same.

• Improvement

  Import race day into the Race Vault from Intervals.icu. Splits, transitions and distances are filled from the activities you actually recorded.

• Feature

  There's now an Android app. Install it from our site, and it will tell you when an update is ready.

• UX

  Week volume now shows planned hours against what you completed, with a toast and confetti when the week is done.

• UX

  If you have a live plan, you now land on the Plan Page, not the Athlete Hub.

• UX

  Tri Pulse now remembers where you stopped, shows episode lengths, and plays video in landscape.

• UI

  Filter pills on Tri Pulse stay visible as you scroll the feed.

• Engine

  High-torque bike intervals now target threshold power at a low cadence, and your bike computer shows the cadence target.

• Fix

  Long workouts now load on Garmin devices. They were sometimes rejected for having too many steps.

• Fix

  Analysis keeps every Intervals.icu session in the week so hours match what you actually rode.

• Fix

  The confetti when you finish a week now works on mobile.

• Fix

  Sending a ride to your device now sends the ride you opened, not an old brick session.

July 2026

Pace the course you'll actually race.

• Feature

  Upload your race's bike course (GPX file) to the Race Simulator and it predicts your bike split on the real climbs and descents. The model is physics-based, with a gradient-coloured elevation profile and arrival times at any point of the course.

• Improvement

  The simulator now describes your course, from flat to mountainous, with every major climb and descent, and what the course asks of your pacing, training and gearing.

• Feature

  Save your race courses and open them again on any device. Pick from your library straight from the Race Simulator.

• Improvement

  The Race Simulator now gives you a power target for flats, climbs and descents on your course. Hold an FTP percentage on the flat; power rises on climbs and eases on descents. Normalised power is what the ride produces. You'll see a warning when a speed is not sustainable at your FTP.

• Improvement

  When you log a race in the Race Vault, you can now add your transition times, whether you wore a wetsuit, and the bike and shoes you used.

• Fix

  Race Analysis now allows for wetsuit swims, so it will not sync an over-optimistic CSS after a wetsuit race.

• UI

  New sidebar menu on desktop, with faster access to every tool.

• UX

  Changing a threshold on the Athlete Hub now saves as you scroll, like in the Session Generator.

• Engine

  Fartlek sessions are clearer: obvious fast and easy parts, with intensities set for each sport.

• Fix

  Very short, very hard intervals now show correctly as high-intensity blocks on the workout graph.

• Improvement

  Races you log in the Race Vault now appear in your plan in race week.

• Improvement

  Open Race Analysis from the Race Vault or straight from your plan.

• UX

  Tap a race in your plan to open its Race Vault entry.

• Improvement

  The Race Simulator now lets you set swim, bike and run distances beyond the standard sprint, Olympic, 70.3 and Ironman presets.

• Improvement

  Add or adjust speed sessions directly from your plan.

• Fix

  Saving your plan while you ease back from injury now works reliably.

June 2026

An injury no longer means starting over.

• Improvement

  When an injury heals, your plan now eases that sport back in over a few weeks, automatically.

• Engine

  Brick sessions now build in stages through your plan, swim quality sessions progress week to week, and next week updates straight away when you change your plan.

• Engine

  Sessions now fit your season's phases more closely.

• Improvement

  You can now log a standalone run, ride or swim race in the Race Vault, not just triathlons.

• Improvement

  Race Analysis now works for those races too, and can sync your thresholds in one tap.

• Improvement

  See a sample 70.3 plan before you sign up.

• UX

  The Plan Page, Athlete Hub and approach pages now give a clearer season overview.

• Improvement

  The Athlete Hub now shows your current plan at a glance: phase, volume and next session.

• Engine

  Weekly hours on your plan now match the sessions in it.

• Improvement

  When you finish a plan, we'll email you an offer for your next one.

• Improvement

  Your plan now has a daily coaching tip, plus extra race-week insights.

• UX

  Tool pages now link to the guides that match what you are looking at.

• Improvement

  The workshop now logs bike services so you can track chain, brakes and tyre intervals.

• Engine

  Better balance of swim volume, and safer run volume for sprint and Olympic plans.

• Improvement

  Swim workouts now include pool length (25m or 50m) in the FIT file, so device targets are accurate.

• UX

  Sign in with an email link or a password.

• UI

  Tools now look and behave the same across the app.

• Fix

  Bikes you deleted no longer reappear.

• Fix

  If your plan was built on an older version, you'll see a prompt to update it.

May 2026

Your plan now bends around real life.

• Feature

  You can now log an injury and tell WattX which sports it affects. Your plan adapts while you heal.

• Engine

  Your plan now includes brick sessions, placed where they fit your training phase.

• Improvement

  Add your own sessions or bricks to your plan week from the Session Generator.

• UX

  Drag sessions on your plan to match the week you actually train.

• UX

  Complete a session on your phone and it is ticked on your laptop.

• UX

  Change the length of a session you added, straight from your plan.

• Improvement

  You can now use miles and pounds everywhere. Switch in the System menu.

• Improvement

  Warm-up and cool-down blocks now show on workout graphs.

• Improvement

  New guides: Race Pacing Explained, Brick Sessions Explained, Triathlon Training Zones Explained, and Race Analysis Explained.

• UX

  Your thresholds, races and plan now stay in sync across devices.

• Improvement

  Measure your sweat rate in Nutrition Strategy to get your own fluid targets.

• UI

  A clearer About page and homepage.

• Fix

  Your profile and races now sync more reliably between devices.

April 2026

Your season has a home.

• Improvement

  The Athlete Hub brings your thresholds, plan, races and gear together on one page.

• Improvement

  Race Analysis: see how your race went leg by leg, and sync thresholds from the day.

• UX

  The Race Simulator and Nutrition Strategy now use the numbers in your profile, so you never enter them twice.

• Improvement

  See patterns across all your races, such as where you tend to fade.

• Improvement

  A short tour of the Athlete Hub for new users.

• UI

  Easier navigation, especially on mobile.

March 2026

Everything for your season, in one place.

• Feature

  WattX is live. Build a race plan that adapts to you, generate single sessions, plan your race nutrition, and follow triathlon news in Tri Pulse.

• Feature

  Log triathlon results in the Race Vault, keep your race history, and review how the day went.

• Improvement

  Session Generator: structured swim, bike and run workouts with targets from your zones, ready to send to your watch or bike computer.

• Feature

  Tri Pulse brings triathlon news, podcasts and YouTube channels into one feed.

• Feature

  Nutrition Strategy: carbs and fluid from your predicted race splits and body weight.

• Improvement

  Send workouts to Garmin and to training platforms such as Intervals.icu.

• Feature

  Log bike maintenance in the workshop.

• Feature

  The Race Checklist is a persistent, editable transition gear list, synced to your profile.

• Feature

  Tyre Pressure: front and rear targets from system weight, tyre width and surface.

• Feature

  Threshold Testing: step-by-step tests for your swim (CSS), bike (FTP) and run (FT) thresholds.

• Feature

  Race Simulator: see your target pace and finish time before race day.

• UX

  Create a plan: enter your race date and thresholds, and WattX builds your season.

• UX

  Your profile, plan and Race Vault now sync across devices.

• Improvement

  The Pain cave dashboard gives you a training overview with thresholds, plan progress and quick tool access.

• Engine

  The Session Generator now builds VO₂ max and recovery sessions.

• Fix

  Fixed wrong nutrition targets for some predicted race times.

• Feature

  Before launch, plans already used Base, Build, Peak and Race phases.

• Feature

  Before launch, workout graphs already showed warm-up, main set and cool-down blocks.

• Engine

  Before launch, strength sessions already included a warm-up and cool-down.

• UI

  Before launch, tool pages already scrolled and laid out on a phone.

February 2026

• Feature

  Core plan engine and macrocycle structure — Base, Build, Peak, and Race phases.

• Feature

  Session generator foundation — zone-based swim, bike, and run workouts.

• Feature

  Athlete dashboard and profile shell — thresholds, history, and connected tools.

• Feature

  Workout graph visualisation with warm-up, main set, and cool-down blocks.

• Engine

  Strength warm-up and cool-down logic in session builder.

• UI

  Mobile scrolling and layout foundations across tool pages.