Bolehill Insitute are Highfields Farm Butchers Premier Division champions as their No 1 team eventually got over the line at Edgefold Club.
A black-ball win by Ian Birks over Rob Muxlow secured the one point they required for the silverware in the fourth frame and Birks followed up by taking pink and black in the concluding doubles contest (partnered by Andrew Brough) to reduce the eventual deficit to the minimum margin.
This is the first time in the history of the club one of their teams has topped the highest division.
The home side came out of the traps in flying fashion with Jason Ankers winning 84-42 after Ricki Slack had edged back into the frame and then Duncan Harwood produced his performance of the season in seeing off Colin Marchington 83-35.
Martyn Taylor made sure of the most individual wins award, defeating Simon Zoppi 81-54.
Edgefold and Belper Strutt No 1 will battle it out for the runners-up spot next week as they each stand of 51 points with the latter defeating Bolehill No 2 4-1.
Belper Strutt No 2 kept alive their chances of reaching the remaining play off place as they won 3-2 at the other contenders, Matlock Cons, though will still be hoping the latter slip up in their final game in order to have a chance of capitalising.
Richard Deakin top scored in putting the hosts ahead before a fantastic performance by Adam Winson levelled things up.
Dave Needham eventually made sure of victory with a black ball win in frame four before Chris Parker and Charlie Hodgkinson edged what could be a vital doubles frame at the death.
Martyn Taylor and Chris Parker will contest the OMYA Cup individual scratch competition final as they each won their semis in decisive fashion with Taylor compiling a run of 60 and Parker 35, whilst Chris Stubbs and Adam Winson earlier reached the Pairs final.