Did a 5k race this morning wearing my Forerunner 945 and the GPS and HR data were worse than I’ve ever seen. GPS had a constant offset of 200m southeast, although the distance and pace were fine. HR was OK for first 2k or so, then dropped from a realistic ~180bpm to a totally wrong ~130bpm for the rest. Here’s a link. Hoping it’s not my watch dying. Software version 13.00 (e80dcb4).
