Michael Yardy and Ben Brown both hit centuries to help Sussex recover to 335 for five against Yorkshire after a magnificent opening spell by Ryan Sidebottom on day one of their County Championship match at Scarborough.
Left-arm swing bowler Sidebottom picked up three wickets for seven runs in his first spell as Sussex slumped to 27 for three, but skipper Yardy and Brown staged a recovery by both posting hundreds in a record 198 stand for the fifth wicket.
Brown was eventually dismissed for 108 but Yardy had advanced to 126 by the close alongside Kirk Wernars.
Yorkshire were unable to capitalise on Brown’s departure because Wernars (16 not out) held firm for the day’s final 15 overs, off which a further 47 runs were added.
Honours ended even on the first day of Derbyshire’s match against Northamptonshire at Queen’s Park in Chesterfield.
The visitors managed 267 and Derbyshire closed on 116 for four, 151 behind.