Yorkshire, seeking their ninth CricInfo Championship win of the season, and the one which will almost certainly clinch them the crown - stacked up 580 for nine before declaring at Scarborough.

This left Glamorgan requiring 357 runs to avoid the innings defeat but by the close of the third day they were reeling on 142 for six, still 215 runs away from making Yorkshire bat again.

The crowd are to be given free admission at the North Marine Road to watch Yorkshire in their moment of glory.

Captain David Byas led Yorkshire's run chase in the morning when they resumed their first innings on 433 for five and although he quickly lost Anthony McGrath and Gavin Hamilton he found a solid partner in Richard Blakey, the eighth wicket pair putting on 113 in 34 overs.

Byas reached his fourth century of the season in the over before lunch, having faced 173 balls off which he hit 12 fours and a six, but he was out straight after the interval when he fell lbw to Simon Jones for 104.

Yorkshire declared as soon as Blakey was out for 54 from 115 deliveries with nine boundaries, leaving themselves a day and almost two sessions in which to go on and win the match.

Ian Thomas and Jimmy Maher got Glamorgan off to a solid start but at 36 Maher was trapped lbw by Gavin Hamilton who was sick on the field just before beginning his spell.

Thomas had batted 23 overs for his 21 when he was caught at second slip by Matthew Wood off Ryan Sidebottom, but Keith Newell and Mike Powell saw Glamorgan to tea without further loss.

Resistance started to crumble when Darren Lehmann came on and in his first over had Powell neatly taken at slip by Byas and it became 127 for four when Newell fell lbw to Richard Dawson for 30.

Glamorgan were now feeling the pressure of Yorkshire's late assault and in consecutive overs, Steven Kirby pinned Mark Wallace lbw and bowled Darren Thomas but Yorkshire decided against claiming the extra half hour in the fading light.

Yorkshire chief executive Chris Hassell said that Yorkshire would not officially be crowned champions until the final game of the season against Essex at Scarborough because they could have points deducted if they prepared a poor pitch for the match.

© CricInfo