If you run with a stroller, you know your watch pace makes you look slower than you are. I built a Garmin data field to fix that. It's called Parent Pace.
Grade-adjusted pace only corrects for hills. Parent Pace also accounts for the weight of the stroller and kid, which gets a lot harder to push as the road tilts up. Say you're running a 10:00 mile up a 5% grade with 65 lb in the stroller. Parent Pace puts that effort at about 7:44 on flat ground, solo.
It's in beta on Garmin watches with a barometer. Setup is quick: copy your Run activity, name it Stroller Run, and enter the stroller and kid weights.
I'd love feedback from anyone who gives it a try.