James Whitaker and Aftab Habib broke Leicestershire's fifth-wicket partnership record as they piled up a massive 481 for 4 against Worcestershire at Leicester.
Whitaker finished with an unbeaten 145 and Habib was still there on 143 with the stand worth 281. The previous record was 233 by Nigel Briers and Roger Tolchard against Somerset in 1979.
Whitaker reached his second Championship century of the season from 135 balls having hit 16 fours, a six and a five. Habib, playing only his fourth Championship game, reached his century in just under three hours from 161 balls with 18 fours and a six.
Yorkshire reached an unlikely 335 at Chester-le-Street thanks to their tail, especially a last-wicket stand of 110 between Chris Silverwood (45) and Richard Stemp, a career-best 65. Darren Gough also chipped in with 43. Chris Scott, the Durham wicketkeeper, took seven catches.
If that was not enough to depress Durham they lost Sherwin Campbell to the third ball of the innings. Peter Hartley grabbed his 500th first-class wicket when he had James Boiling leg before and dismissed Mike Roseberry in similar fashion as Durham ended the day on 19 for 3.
Derbyshire's John Owen made his second century in three innings as he put on 151 with Colin Wells against Glamorgan at Cardiff. Wells also completed his century as the visitors finished on 334 for 5.
The Middlesex wicketkeeper Keith Brown needed hospital treatment for cuts across the bridge of his nose after being hit in the face from the first ball of the day against Cambridge University. Mike Gatting stood in before Ian Gould, the former Sussex keeper, arrived to take over in the afternoon.Reuse content