Must just be a TrainingPeaks computation on the running side then b/c I definitely have running IF (afterwards) in TPeaks but wanted it “real-time” on my wrist while running.
Suunto watches are able to display running IF and normalized graded pace in one of their SuuntoPlus widgets. I realize it’s not relevant to a Fenix, but thought I’d put this here as an FYI in case others have the same question but aren’t using Garmin.