Plantar fasciitis (PF) is common among both sports and inactive individuals, and several treatment approaches are available. There is no study that examines the effect of massage on plantar fasciitis in multi-discipline athletes such as modern pentathletes. This study evaluated the effectiveness of massage on modern pentathletes suffering from plantar fasciitis. Twelve male athletes between the ages of 18 and 25 who had a history of plantar fasciitis pain and participated in modern pentathlon sports took part in the study. Every athlete received a 15-minute Swedish massage between 13:00 and 17:00 on each day of the week for 15 days. Before and after the massage, all athletes' pain and endurance levels were measured. For pain assessments, pressure pain algometry was utilised, and for endurance evaluations, the yo-yo intermittent endurance test was utilised. Athletes participating in the study before (3.5 (2 - 5)) and after (7 (6 - 8)) pain average measurements and before massage (830 ± 60) and after (1498.33 ± 52.88) endurance average measurements pretest-post It was determined that there was a statistically significant difference between test values. According to the study, massage, an alternative therapeutic strategy, can be used to address the PF issue. However, in order to increase the accuracy of the findings obtained, it is recommended to extend the number of different samples or the duration of the treatment day in order to say that massage is the definitive solution in the treatment of PF.