I have a garmin forerunner 610. i recently downloaded a marathon training onto my calendar. I then transferred the data to my watch. however when i came to run one of the interval sessions, the fast session heart rate was set at a level up on my watch. on the calendar the intervals are planned for running for 4 minutes in level 4 but on my watch run for four minutes at level 5. I have reset my watch, deleted and reloaded my training plan but nothing has changed. can anybody help?
