per-session. The data were analyzed by paired samples t-test to examine whether Weight training is one among the instruments for the improvement of sports performance and vital for the successes of athletes. However, no significant work has been made yet on the effect of weight training on athletics performance in the area under study and national level at large. Here therefore, this thesis is a move towards feeling such gaps. The purpose of this study is mainly to examine the effect of weight training on middle distance runners’ performance: the case of Yetmenkebele athletics club. 22athletes selected as the sample of the study using comprehensive sampling method. These athletes were assigned as one experimental group and their age ranges from 19 to 26 years. Pre-test and post training test were conducted on athletic performance variables such as strength, speed and 12 minutes run. The data collected from participants using sit up test for strength, 12 minute run test for cardiovascular endurance and 60m speed test. The physical fitness variables selected for the study were: speed, strength and cardiovascular endurance. The activity was given from February to April / 2018, with the frequency of 3 days per week for 2.5 months and the duration was 60 minutesweight training can significantly affect middle distance runners performance or not. Statistical package for