Dubon has been promoted to Double-A Portland, SoxProspects.com's Chris Hatfield reports.
One of a handful of intriguing middle infielders in a stacked Red Sox system, Dubon has thrived at High-A, hitting .306 while going 24-for-28 on stolen-base attempts and posting a 25:33 K:BB in 278 plate appearances. There is no sign that he will ever hit for much power (he has one home run in 124 career games at High-A), but his defense, hit tool and speed should allow him to be a serviceable big leaguer down the road.