Pre-competition stress involves anticipatory anxiety, fear of failure, and nervous energy, impacting focus and performance with physical symptoms like shaking. The main purpose of this study was find out among pre-competition and post competition triathlon athletes male. To obtain the data the investigators selected total 50 (N= 0) subjects of inter college level triathlon athelets male. For this research first, a test was administered before the start of competition (n=50) and then after the competition (n=50) For this study Prof.A.K.Srivastav Psychological stress scale were used for this study; the age group of 18-25 years. The study was admitted to compare between the group of pre-competition and post competitions triathlon athletes male.It was hypothesized that there would be significant differences psychological stress level among pre-competition and post competitions triathlon athletes male. To analyses the collected dada t-test was employed. The finding of the study indicated that there was significant differences among the group as t(0.05,98)= 2.44