What are the numbers inside the circle? September 17, 2019 14:55 Updated The numbers in the circle are the day of the month, 1 = first of the month, 15 = fifteenth. Related articles What are the numbers below the circle? How Do I Apply My Garmin Workout to My Planned Workout? What do the filled in pink circles indicate? Why are my prescribed paces too hard or too easy? What do the circles at the top of my plan indicate?