The SPFL Reserve League began this week, with eight games on Monday and one on Tuesday.
Hibernian, who were Development League champions in 2017/18, kicked off with a 4-1 victory over Partick Thistle at Oriam, with Sean Mackie sending Hibs on their way to an emphatic win.
The biggest victory of matchday one saw St Mirren thrash Dundee United 5-0 at the Simple Digital Arena, with Jeff King and Scott Glover both netting twice.
Wallace Duffy rounded off the scoring as Celtic beat Dunfermline Athletic 3-0 at Cappielow while captain Callum Moore scored a late winner as Dundee defeated St Johnstone 3-2 at Links Park.
Andrew Dallas struck in the closing minutes as Rangers came from behind to beat Queen of the South 2-1 at Palmerston while a Bruce Anderson goal earned Aberdeen a 1-0 success against Ross County at the Highland Football Academy.
Denny Johnstone hit a double as Morton ran out 3-0 winners away to Falkirk and Innes Cameron bagged a brace as Kilmarnock saw off Hamilton Accies 4-1 at Rugby Park.
Today's game saw Motherwell beat Hearts 2-0 at Forthbank Stadium in Stirling, with second-half goals from George Newell and Neil McLaughlin. Arnaud Djoum played an hour on his comeback from injury for the Tynecastle side.