TRUE EFFORT

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.

★★★★★ Built for runners who want the truth behind their pace
EARLY ACCESS Want an honest view of your fitness? Join early access for personalised predictions, trends and heat-adjusted analysis.
Three runners training in hot sunny conditions beside a city waterfront
Today's True Effort Marathon · current climate
Cool, flat conditions
Cool-equivalent paceLoading snapshot…
Current 5K estimate
Cool 5K estimate
Current conditions
Temp Dew point Heat cost
See your real fitness

Separate genuine fitness changes from heat, humidity and difficult conditions.

Track meaningful trends

Follow heat-adjusted progress instead of reacting to one fast or slow run.

Predict race performance

See personalised 5K, 10K, half-marathon and marathon estimates.

Understand the conditions

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.

Join early access

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.

Hot run · Hong Kong-like climate

Temp

Humidity

Dew point
Cool conditions · flat 5K equivalent
Cool
Conditions
Flat
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.

🌡
Heat is the limiter today.

High heat strain is costing time. Focus on hydration and heat adaptation.

📈
Your fitness is trending up.

Heat-adjusted effort can reveal improving form even when raw pace looks flat.

👟
Aerobic strength looks strong.

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.

Open dashboard
5KCool, flat
10KCool, flat
Half marathonCool, flat
MarathonCool, flat

Stop guessing. Start training with clarity.

See the performance behind every hot run.

See my True Effort