Kathryn and Jennifer Geyer experienced several challenges and frustrations with MAF low heart rate training. On their first MAF test, they had to slow down to a 13:21 min / mile (8:04 min / km) at a heart rate of 142. The frustration levels were high at times, yet small gradually improvements and positive changes became noticeable as they trained for their first marathon... An honest conversation about their MAF Training and Racing Journey and how to adjust when things don't go according to plan.