The Netherlands continued to tighten their grip on their Intercontinental Cup match against Canada in Pretoria on Wednesday, taking a lead of 306 on the first innings and then reducing Canada to 194 for five in the second by close of play.

Ryan ten Doeschate continued to dominate the first half of the day, his splendid innings of 259 not out - his maiden first-class double-century - breaking David Hemp's fortnight-old Intercontinental Cup record individual score of 247 not out. He batted for 397 minutes and faced 314 balls, hitting 28 fours and five sixes.

But the statistics don't do justice to another great performance with the bat, which brought his Intercontinental Cup aggregate in five innings to 739, at an average of 184.75. He managed the later stages of the innings very well indeed, ensuring that the Dutch gained the largest possible lead.

Canada relied mainly on spin during the pre-lunch session, deferring the taking of the new ball until after the interval. They crowded the bat with a ring of fielders for everyone except ten Doeschate, and were rewarded with two wickets, both of them involving controversial decisions.

First, Peter Borren was given out when on 49, having added 112 for the seventh wicket with ten Doeschate. It seemed at first that he had been given caught at silly point by Sandeep Jyoti off Dhaniram's bowling, although it seemed obvious that the ball had come off the pad. It was subsequently ruled that he was out leg before, a long way down the track and apparently outside the off stump.

After a succession of Canadian appeals, Jeroen Smits was likewise given out twelve overs later, this time caught at short square leg by Don Maxwell. Again, the ball did not appear to have made contact with the bat.

Canada took the new ball immediately after lunch, but ten Doeschate and Jonkman continued to pile on the runs, adding 65 for the ninth wicket. Jonkman was eventually trapped leg before by Umar Bhatti, while Don Maxwell bowled just three balls to dismiss Muhammad Kashif and end the innings.

Their second innings began confidently enough against Jonkman and ten Doeschate, but when leg-spinner Daan van Bunge came on he had Desmond Chumney caught and bowled with his first ball. Sandeep Jyoti followed with the score on 52, but then Ash Bagai and Qaiser Ali had another fine third-wicket partnership, adding 88 before Peter Borren, soon after joining the attack with a succession of lbw appeals, finally had Bagai given for 57, made in 74 minutes off 64 balls.

Mulla soon went the same way, and when van Bunge bowled Dhaniram Canada were 153 for five. But Ali and Don Maxwell saw out the remaining overs, adding 41 in an unbroken sixth-wicket stand. Ali was 76 not out at the close, and his innings will be hugely important for his side tomorrow.