Description

This data field quantifies your actual exertion level—either per lap or as a 30-second rolling average—when conditions deviate from the ideal (high altitude, elevation gain, accumulated fatigue, and technical terrain). How it works The system calculates an Equivalent Pace by normalizing your current speed against fatigue, elevation, altitude, and terrain technicality. This value is then compared to your FTPa (Functional Threshold Pace), which represents the maximal steady effort you can sustain for approximately one hour under ideal conditions. Display Options You can choose how to visualize this data: effortPace: Your current effort translated into the equivalent pace you would be running under ideal conditions. TRP (Target Race Performance): An effort scale from 1% to 100%. A "100%" represents your maximum achievable performance for that race, while lower values indicate a proportionally reduced competitive effort. Configuration & Technicality You can toggle the calculation window between 30 seconds or per Lap. Additionally, you must define the Technical Difficulty of the terrain based on Kilian Jornet’s scale: T0 – Non-technical: Road, track, wide trail. Continuous stride, no obstacles. T1 – Slightly technical: Clear trail, uneven surface. Some rocks/roots. Mostly continuous rhythm. T2 – Moderately technical: Narrow trail with natural steps. Requires constant attention and irregular pace. T3 – Technical: Rough terrain, loose rocks. Descents requiring braking. Very broken stride. T4 – Very technical: Occasional use of hands. Exposed sections. Power-hike rhythm. Fall risk. T5 – Extremely technical / Alpine: Frequent use of hands, scrambles, and ridges. Very slow progress; high psychological and biomechanical penalty. Note: When navigating a pre-loaded track, the total distance used for fatigue calculations will be the one provided by the track file.

Screenshots

Trail Running Performance · Screenshot 0 Trail Running Performance · Screenshot 1 Trail Running Performance · Screenshot 2 Trail Running Performance · Screenshot 3

Supported languages (2)

English Español

Compatible devices (94)

Approach® S50 Approach® S70 (42mm) Approach® S70 (47mm) D2™ Air X10 D2™ Air X15 D2™ Mach 1 D2™ Mach 1 Pro D2™ Mach 2 Pro Descent™ G2 Descent™ MK3 - 43mm Descent™ MK3i - 51mm Edge® 1040 Edge® 1040 Edge® 1050 Edge® 540 Edge® 550 Edge® 840 Edge® 850 Edge® Explore 2 Edge® MTB Enduro™ 2 Enduro™ 3 epix™ (Gen 2) epix™ (Gen 2) epix™ Pro (42mm) epix™ Pro (47mm) epix™ Pro (51mm) eTrex® Touch fēnix® 7 fēnix® 7 fēnix® 7 Pro fēnix® 7 Pro – Solar Edition (No Wi-Fi®) fēnix® 7S fēnix® 7S fēnix® 7S Pro fēnix® 7X fēnix® 7X fēnix® 7X Pro fēnix® 7X Pro No Wi-Fi fēnix® 8 AMOLED (43mm) fēnix® 8 AMOLED (47mm/51mm) fēnix® 8 Pro fēnix® 8 Solar (47mm) fēnix® 8 Solar (51mm) fenix® 9 - 43 mm fenix® 9 – 47 mm fēnix® E Forerunner® 165 Forerunner® 165 Music Forerunner® 255 Forerunner® 255 Music Forerunner® 255S Forerunner® 255S Music Forerunner® 265 Forerunner® 265S Forerunner® 570 - 42mm Forerunner® 570 - 47mm Forerunner® 955 Dual Power Forerunner® 965 Forerunner® 970 GPSMAP® H1 Instinct® 3 – 45 mm, AMOLED Instinct® 3 – 45 mm, Solar Instinct® 3 – 50 mm, AMOLED Instinct® 3 – 50 mm, Solar Instinct® Crossover AMOLED Instinct® E – 40 mm Instinct® E – 45 mm MARQ® (Gen 2) MARQ® Commander (Gen 2) – Carbon Edition MARQ™ Aviator (Gen 2) Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2S Mercedes-Benz Venu® 2S tactix® 7 tactix® 7 – AMOLED Edition tactix® 8 – 47 mm, AMOLED tactix® 8 – 51 mm, Solar Venu® 2 Venu® 2 Venu® 2 Plus Venu® 2 Plus Venu® 2S Venu® 2S Venu® 3 Venu® 3S Venu® 4 – 41 mm Venu® 4 – 45 mm Venu® Sq. 2 Venu® Sq. 2 Music Venu® X1 vívoactive® 5 vívoactive® 6