Will Porterfield's half-century led Gloucestershire to their first Twenty20 Cup success of the season as they beat Glamorgan by seven wickets in a low-key contest at Bristol.
The Dragons could score only 130 for six after losing the toss, Mike Powell top-scoring with 33 and Ian Fisher claiming three for 20.
Despite the early loss of Jackson Thompson, the Gladiators had little difficulty in reaching their target with eight balls to spare as Porterfield hit seven fours in his 62 and Hamish Marshall contributed 41 to a second-wicket stand of 83.
The result leaves Glamorgan's hopes of reaching the quarter-finals hanging by a thread, while Gloucestershire were already out of contention.
AJ Harris, on loan from Nottinghamshire, marked his home debut for the Gladiators by taking two for 19 from his four overs at the start, removing the dangerous Robert Croft and Herschelle Gibbs.
Then Fisher put a stranglehold on the middle of the innings, although Powell played some pleasant drives in his 31-ball innings, which featured five fours.
Jamie Dalrymple (29 not out) and Mark Wallace (26) did their best to provide some late acceleration, but the Dragons never recovered from the slow start that saw only 21 runs on the board after the six-over fielding restrictions.
When Thompson fell early to David Harrison there was still the prospect of a close game. But Porterfield and Marshall soon took control and moved the total to 84 before Marshall was bowled giving Dean Cosker the charge.
The New Zealander had hit five fours in his 32-ball stay. Porterfield reached his half-century off 45 balls and only 10 runs were needed when he was caught at backward point off Ryan Watkins.
Gloucestershire's acting skipper Marcus North was 25 not out at the death and ended the game in style with a straight six off Croft.
Glamorgan had bowled tidily, but were given too few runs to play with by a feeble batting performance on a good pitch.