FITNESS, PREDICTIONS & TRENDS
Hot Runs.
Honest Fitness.
Your pace changes with the weather. Your fitness does not. True Effort separates conditions from capability so you can see your real form, race predictions and progress over time.

Separate genuine fitness changes from heat, humidity and difficult conditions.
Follow heat-adjusted progress instead of reacting to one fast or slow run.
See personalised 5K, 10K, half-marathon and marathon estimates.
Know how much weather affected the result without making weather the whole story.
EARLY-BIRD TESTERS
See the fitness behind your running data.
Connect Strava and join the first group testing personalised fitness trends, race predictions and condition-adjusted analysis.
COMPARE LIKE WITH LIKE
Your recorded pace.
Your honest fitness.
True Effort uses weather, heart rate and training history to explain the effort behind the pace and estimate what the same fitness means in fair conditions.
Temp—
Humidity—
Dew point
ConditionsFlat
Course—
Heat cost
UNDERSTAND YOUR FORM
Know if your fitness changed.
And why.
Move beyond raw pace. True Effort separates heat strain, heart-rate drift, fatigue and real fitness so you can make better training decisions.
High heat strain is costing time. Focus on hydration and heat adaptation.
Heat-adjusted effort can reveal improving form even when raw pace looks flat.
Sustained effort pace is improving. Consider a longer tempo this week.
RACE-DAY SCENARIOS
Plan for race day. Know your range.
Live values come from your latest saved True Effort model snapshot.
Stop guessing. Start training with clarity.
See the performance behind every hot run.