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The present study is aimed at investigation the probable relationship between athletic background and bum - out by the three variables of emotional exhaustion, depersonalization and personal accomplishment among Tehran's female speed and endurance runners (N=- 60) . The subjects were divided into two groups of 30 according to their athletic specialization (speed and endurance). Their bum- out was measured through Maslach Bum-out Inventory
(MBI) in three levels of low, moderate, and high and then compared using descriptive analyses. The relationship between the obtained bum-out and the athletes' athletic background was evaluated by the use of Pearson Correlation
model. The results revealed that the two groups suffer moderate levels of
bum-out in the two variables of Emotional (EE), Depersonalization (DP) and low levels of Pearson Accomplishment (PA). In comparison, Tehran's female endurance runners were more burned-out in EE and DP than their counterparts;
however, speed runners showed greater amounts of bum-out considering their PA. The correlation analysis showed a negative relationship between EE, DP and athletic background in Tehran's female endurance runners and a positive relationship between PA and athletic background in Tehran's female speed runners.