|LV= County Championship Division Two, Nevil Road|
|Close, day three: Gloucestershire 391 v Glamorgan 569-7|
|Glos 4pts, Glamorgan 7pts|
Ben Wright completed a fine century as Glamorgan piled on the runs against Gloucestershire at Bristol.
Resuming day three on 209-2, replying to the hosts' 391, Wright (123) and Jacques Rudolph (139) went on to share 158 for the third wicket.
Chris Cooke (52) and Jim Allenby (57) chipped in with half-centuries to help the visitors build a healthy lead.
Glamorgan eventually closed on 569-7, an advantage of 178, with Ruaidhri Smith adding an unbeaten 40.
BBC Radio Gloucestershire's Bob Hunt:
"A sparkling century from Ben Wright livened up things on day three, with Gloucestershire spending the day setting defensive fields and waiting for the batsmen to make mistakes.
"The home county will have to bat with the same discipline on the final day as they did over the final two days against Surrey in their previous match."