Jaafar Ameen, M., Yasser Mahdi, M., Fayyad Hamad., H. and Abdel-Kareem Abdel-Saheeb, S. 2023. The percentage of the contribution of the partial distance time (30, 60, 80) meters in the completion of the 100-meter race, ahead of the elite runners. College of Basic Education Research Journal. 19, 21 (Aug. 2023), 543–554. DOI:https://doi.org/10.33899/berj.2023.180024.