London, June 4 -- Jason Roy's 69 off 47 balls proved a match-winning innings as Surrey successfully defended a modest target of 150 in a seven-run victory over Glamorgan.

The home side started brightly with Kiran Carlson (31) and Will Smale (26) adding 58, but Surrey's bowlers squeezed expertly and Glamorgan fell away to 142 all out on Tuesday.

Sam Curran took 3-18 on his 27th birthday, expertly backed up by Kiwi Nathan Smith (2-21) and Chris Jordan (3-31) as Glamorgan provided a series of catches on the wide square boundaries.

Former England batter Roy played a lone hand for Surrey, striking four sixes in his key knock as they were kept down to 149-8.

Dan Douthwaite (3-23 in four) led a tidy Glamorgan bowling performance, while Andy G...