u/FakeBotBeepBoop

I ran my first marathon on Sunday, and used Pace Pro. I noticed after a few kilometres that the Pace Pro kilometre pace notification stopped being aligned to the kilometre notifications on my watch or the kilometre markings on course. By the end of the marathon, my watch has me at 42.42km ran, my chip distance was 42.2, but pace pro was off by 3-4 kilometres.

Any one else have this issue or know how to prevent it in the future?