What you need to do is runs at different paces, firstly to see how constant the power reading is and to start building a pace correlation to power spreadsheet. i.e something like 200w is 6min/km pace, 220w is 5:30min/km (which will be specific to you). If it is consistent over time running similar pace and getting power, then you can do a critical power test and start building your Power Distribution Curve. https://support.stryd.com/hc/en-us/articles/115003989074-How-do-I-perform-a-critical-power-test-and-get-my-critical-power-and-zones- https://support.stryd.com/hc/en-us/articles/360039261314-Critical-Power If you are still using your WK04, you will be able to create a running power curve. If you have started using Golden Cheetah, you can use the in built cycling power curve and then use the filter for running activities only. You will also need to filter your cycling power curve in Golden Cheetah for cycling activities only. Running power numbers are higher than cycling, so you need to have the 2 different power curves else things get a bit skewed. And if still using Xert, they do not differentiate activities in their power calculations, even though this has been asked for in the forums. Xerts answer is that you have to create 2 profiles, one for cycling and one for running, and upload your activities accordingly, so that you don't skew the power curves
