After a good begin at 37-0, Middlesex misplaced three wickets in 4 deliveries, with Jordan Clark dismissing Adam Rossington with the ultimate ball of the fifth over and Reece Topley taking two in three balls at first of the sixth.
Middlesex by no means actually recovered from these blows, with solely Luke Hollman (35*) and Eathan Bosch (31) belatedly nudging up the entire with some late-order hitting.
Surrey made a stodgy begin to their reply, with Noah Cornwell eradicating Jason Roy (the opener made two from 13 balls) and Tom Helm taking 2-24.
However with Sam Curran and Evans combining for the fifth wicket and placing 9 fours and 6 sixes between them, Surrey had been capable of ease dwelling.
