Durham are on the verge of completing the double over Yorkshire -and as at Chester-le-Street in May they are ready to finish the job with a day to spare.
This has come about thanks to Yorkshire's second innings collapse from 151-2 at around 10 minutes before midday to 273 all out by a quarter to three, leaving Durham chasing a modest 111 to win.
The main damage to Yorkshire's prospects came before lunch, when Steve Harmison, who was fast but expensive during a 12-over marathon stint from the football stand end, produced two of his better deliveries to remove Adam Lyth and Michael Vaughan and then Andrew Gale was caught aiming a injudicious pull at Australian-born seamer Callum Thorp.
That left Yorkshire 209-5 at lunch, just 46 in front, and although Darren Gough provided some boisterous hitting to make 34 off just 23 deliveries it was not enough to get the home side far enough in front to keep the game alive.
Thorp, who took the brunt of the Gough onslaught, eventually bowled the Yorkshire skipper with a slower delivery to finish with 5-71. Liam Plunkett bowled well to claim 3-49.
Durham wobbled a little at the start of their chase as Matthew Hoggard struck twice - in front of England's chief selector, Geoff Miller - to remove Ben Harmison (caught at second slip) and Will Smith (caught behind) with only eight scored. But Michael di Venuto (45) looks in complete charge now and with Paul Collingwood looking to made amends for his poor effort in the first innings, Durham need only another 50 to win with 32 overs to go in the day.