Derbyshire 177 and 413 for 6 (Hughes 122, Madsen 90, Godleman 66*) lead Glamorgan 518 by 72 runs
Despite a century from Chesney Hughes, the tenth of his career and his third against Glamorgan, and 90 from Wayne Madsen as third-wicket pair added 180, Glamorgan remain on course to win their first Championship win of the season at Colwyn Bay.
At the close of the third day's play, Derbyshire were 413 for 6, a lead of 72 on a pitch which is giving little assistance to the bowlers.With Hughes and Madsen both out, much will depend on the Derbyshire middle and late order batsmen if they are to set Glamorgan a challenging target. Their captain Billy Godleman was 66 not out.
After Hamish Rutherford had edged Graham Wagg to the wicketkeeper after scoring 45, Glamorgan had to wait another 46 overs for further success, as the third-wicket pair consolidated throughout a sweltering afternoon.
Hughes played and missed many times - especially against the accurate Michael Hogan - but in between played some handsome strokes on both sides of the wicket.
He reached his century by sweeping Owen Morgan's left-arm spin for six, before he was out, edging Wagg to Wallace.
Madsen survived a difficult chance down the leg side to Wallace on 70, and a more straightforward chance six runs later to Aneurin Donald at slip, and he appeared destined for three figures before he became Wallace's fourth victim, when he edged Andrew Salter's arm ball to the wicketkeeper.
Hogan was eventually rewarded when he pinned Neil Broom in front and at that stage Derbyshire were nineteen runs behind. Godleman, batting at No. 5 after being taken ill the previous day, and Shiv Thakor then cleared the arrears and settled into an useful partnership with Godleman reaching fifty from 90 balls .They put on 63 before Thakor shuffled in front of his stumps and was leg before to David Lloyd for 29.
Both teams applied themselves well on sweltering day; Derbyshire for their application and determination to improve on their dismal first innings performance, and Glamorgan's bowlers who stuck to their task and by the end of the day had put their side in sight of a first win.