In a surprise result during the fourth round of the professional league, MB Rouissat secured a narrow 1-0 victory over USM Alger. Held at the 18-Février stadium in Ouargla, the match was decided in the 58th minute when Amar Arfi converted a penalty kick. This win brings Rouissat to six points and sixth place in the standings. Conversely, USM Alger suffered their first defeat of the season, remaining on seven points and surrendering the league lead to CR Belouizdad. Additionally, JS Saoura and Olympique Akbou played to a goalless draw at the 20-Août 1955 stadium in Béchar, leaving both teams with a challenging start to their campaigns.