|County Championship Division One, Derby|
|Close, day one: Derbyshire 232-2 v Surrey|
|Derbys 1pt, Surrey 0pts|
Shivnarine Chanderpaul's first century for Derbyshire helped them into a strong position against Surrey.
Bad weather delayed play until 15:15 BST and Chris Tremlett got rid of Chesney Hughes for a golden duck.
Billy Godleman (17) fell to Tim Linley, but Chanderpaul (112no) and Madsen (92no) saw the hosts to 232-2 at close.
The two sides, who played out a rain-hit no-result in the YB40 on Wednesday night, had to wait until mid-afternoon for any play.
Hughes misjudged a straight one from Tremlett and fell to the day's fifth ball, and Derbyshire were soon in a bit of trouble on 29-2 when Godleman was caught at slip by Zander de Bruyn.
Chanderpaul and Madsen have so far put on an unbroken 203-run partnership for the third wicket - the first double hundred partnership for Derbyshire against Surrey.
Madsen's 157-ball knock has contained 10 fours, while Chanderpaul has hit 13 fours in 136 balls at the crease.
VIEW FROM THE DRESSING ROOM
BBC London 94.9's Mark Church:
"On an excellent surface Shivnarine Chanderpaul and Wayne Madsen made batting look very easy.
"They came together after Chris Tremlett and Tim Linley had dismissed the openers and neither looked in trouble.
"Chanderpaul moved seamlessly to his century and, when bad light brought an early end to proceedings, Madsen was eight runs away from the milestone.
"Surrey know they will have to break the partnership early tomorrow."