The power target given includes the power you need to spend to overcome the air resistance as if you were running in a still air environment (i.e. there is no wind).
Here is what that means:
If you are running in a windy race, your finishing time will likely be a little slower than the finishing time given by the Race Power Calculator.
If you are using the previous generation of Stryd which doesn’t account for the wind, the predicted time is likely too conservative for you.
Important Note: In order for this feature to work, you need to place the Stryd pod in a consistent, central, straightforward, and stable position on your shoes.
Stryd must be placed in a consistent, central, straightforward, and stable position on every set of shoes that you wear for data collection and race power recommendations to be correct.
It is easy to place Stryd on most shoes. You can see this video for reference: https://support.stryd.com/hc/en-us/articles/360000949833-Snap-Stryd-on-Shoe
However, if you are using a shoe with a unique or novel lacing pattern such as the Nike 4% shoes or the Nike Next% shoes, you will need to take extra care to place Stryd correctly. Watch this video for help: https://www.facebook.com/ysubtle/videos/10157146029256909/