To add even stranger things, summary of a 17km activity recorded with both Race 2 and Vertical:
[image: 1770111094828-selecci%C3%B3n_5080.png]
So far, this is the usual behavior; Race 2 underestimates the distance measured by GPS, correct?
And now, I go to https://www.sports-tracker.com/ and compare de info and Laps info for every recorded activity and, oh! surprise!, SportTracker shows the “Raw” data and both watches are very very similar in Laps times and Paces (and not during the activity). SportTracker shows 17,3km total distance in laps (the recorded raw distance) and practically identical Laps compared one by one:
[image: 1770111226878-selecci%C3%B3n_5079.png]
[image: 1770111472013-mind-blown-chris-pratt.gif]