Four wickets apiece from Chris Greaves and Mark Watt saw Scotland beat The Netherlands by 32 runs in a low-scoring game in Abu Dhabi.
Chasing what looked a modest Scotland total of 122 for 6, The Netherlands failed their trial by spin on a pitch described by left-arm spinner Watt as 'one of those that you just want to roll up and take home with you'.
He claimed 4 for 10 and leg-spinner Greaves 4 for 19 as the Dutch made just 90 - Scott Edwards (22), Ben Cooper (19) and Stephan Myburgh (17) the only players to make double figures in what was a rusty display.
Scotland's total was built around two major contributions from Calum MacLeod (32*) and Michael Leask (30), while George Munsey and Matthew Cross both hit 15.
For The Netherlands there were two wickets apiece for Timm van der Gugten (2-11) and Fred Klaassen (2-21).
In the other games Sri Lanka beat Bangladesh by four wickets, Ireland thumped PNG by eight wickets chasing 97, while Oman (152/8) beat Namibia (120/9) by 32 runs thanks primarily to Kaleemullah who took four wickets.
The eight round one sides are back in action on Thursday before the tournament proper gets under way on Sunday.