Team preserves 100% record
Glashtyns now top the Manx Premier League with four wins from four games.
On Saturday they beat Bugganes by two wickets in a tight match at Mullen-e-Cloie in St John's.
Bugganes made 112 for 7 from their twenty overs with Floris Venter scoring 26 and Ben Kebbell taking 2 for 14.
In reply Glashtyns struggled to 36 for 4 before Phil Littlejohns hit a lively 26.
At 96 for 7 the game was in the balance, and although another wicket fell, a sturdy 24 from Dan Hawke guided his side to a narrow victory.
The first two games of the day were abandoned because of rain and went to bowl outs.
In these Manannans beat Bugganes and Glashtyns defeated Manannans.