Alviro Petersen and Ashwell Prince hit a new high when they put on 321 runs for the third wicket and helped Lancashire to 425-2 in the English County Championship against Glamorgan at Colwyn Bay on Sunday.

And this is just day one. The two former Proteas team-mates came together when Lancashire were on 104-2, with Peterson combining with Karl Brown in a stand of 98 for the second wicket.

Then it was just an all-out assault: the AP Coalition scored at 5.13 an over as Jacques Rudolph used seven bowlers to try stem the tide on a flat pitch with short boundaries. Petersen ended the day on 205, just five short of his best first-class score, and Prince was on 154. In the final session 192 runs were scored off 32 overs.

There were some notable landmarks along the way. When Petersen smacked a four off left-arm paceman Graham Wagg to go past 110, he also passed 13,000 first class runs. They shared 258 for the third wicket in the against Derbyshire at Southport in May, when Prince got the double. Petersen made his third Championship century of the season and passed 3,000 career runs in this competition. His 205 contains 27 fours and a straight six off Cosker which landed outside the ground..

‘Days like this in cricket don’t come often,’ said Petersen. ‘When you’re in, you try to make it as big as possible, and we’ve done that. It’s important to go big. Nowadays 100 just doesn’t cut it. You want to go on and get 150 plus.

‘Ashwell is playing good cricket, and it’s nice to support someone who’s been playing so well this year.’

Prince  posted his fifth hundred of season, and this was the ninth time he has passed 50 in 17 innings in this competition this summer. His overall tally of 1,204 runs is a personal best haul in any campaign.

Richard Levi had little to celebrate was he reached his 100th first-class innings.  He was top-scorer with 34 as Northants crumbled to 116 in the first innings, in reply to Derbys’ 361. He managed only 22 in their second as they ended on 245-6, reaching parity but with just four wickets in hand.

Rory Kleinveldt tried to do his bit, taking four Derby wickets, but at a cost of 99 off 21 overs, with seven no-balls.

Somerset will be singing the praises of their Saffas, Alfonso Thomas and Tim Groenewald, who put on 64 for the last wicket against Warwickshire. Thomas was not out on 32, while Groenewald battled for nearly an hour and half for his 34. Warwickshire, though, have come back strongly, ending the day on 319-8, with Thomas taking 3-79.

Mike Richardson top-scored with 91 off 208 balls in Durham’s first innings of 278-6 against Hampshire, while Riki Wessels contributed 94 to Nottinghamshire’s 358-5 against Sussex. He and James Taylor (168 not out) rescued the innings from a precarious 30-3, taking the score to 174 before Wessels fell.

In the Caribbean T20 league, Jacques Kallis hit an unbeaten 61 as Trindidad and Tobago notched up 145-3 and beat Jamaica by seven runs.

Compiled by Mark Salter