Sony Sugar handed Bandari their second defeat of the season in a 2-0 win at the Awendo Green Stadium on Wednesday.
Before the defeat, Bandari had lost just once in the league, to Kakamega Homeboyz who beat them 4-0 at the Bukhungu Stadium on January 30.
The mid-week defeat was the third for coach Bernard Mwalala since he moved to Mombasa from Nzoia Sugar. Solomon Omollo put Sony Sugar into the lead just two minutes after the break before Derrick Otonga doubled the scores in the 71st minute for a deserved win.