Best Heart Rate Monitor for Running – Doing intervals with the Polar H10
iRunFar’s Alli Hartz checks her heart rate during an interval workout. Photo: iRunFar/Eszter Horanyi
Katie Schide and Ludovic Pommeret won the Hardrock 100! Read our 2025 Hardrock results article and watch Katie’s and Ludo’s interviews for more of the race story.
iRunFar’s Alli Hartz checks her heart rate during an interval workout. Photo: iRunFar/Eszter Horanyi