One run was the agonising margin between safety and relegation for Pudsey Congs as their Premier Division tenure came to an end.
Two runs from the final ball of their match with New Farnley would have earned them a tie and that would have seen them finish level on points with East Bierley and survive by virtue of having one more win.
But Congs only managed a single and finished on 136-5 in rely to New Farnley's 137-3 in a game reduced to 20 overs per side because of rain on a day when the weather caused widespread disruption.
Batley, who suffered a 99-run defeat against Woodlands in another 20-over contest, are relegated with Congs after just one season in the top flight.
East Bierley, whose match with Bradford & Bingley was abandoned with them in trouble at 75-5 in response to their rivals' score of 186-6, finished with 166 points, two more than Batley and five better than Congs.
The game between New Farnley and Congs was clearly the most dramatic. Skipper Lee Goddard blasted 97 from 65 balls for New Farnley with four sixes and eight fours as they compiled a total of 137-3.
Congs opener Mubtada Akhtar hit four sixes in his 45, but it was Zahid Nissar (42no) who put his side in sight of survival. Sadly for the six-times champions, the game had a cruel twist and saw them lose by the narrowest of margins.
In contrast, East Bierley were celebrating a lucky escape as the abandonment of their match with Bradford & Bingley earned them the three points that lifted them out of the bottom two. East Bierley still needed 112 runs from 41 balls when the weather brought play to a halt.
Bradford & Bingley posted a formidable total of 186-6 in their 20 overs with Hamzah Iqbal making 50, Matthew Duce (35) and Kyme Tahirkeli (30no from just six balls.).
East Bierley lost wickets pursuing quick runs and looked to be headed for relegation when the rain swept in.
Batley, who have battled so hard to try and avoid the drop, fell at the final hurdle, Woodlands scored 164-5 in their 20 overs with skipper Tim Jackson (51), Sam Frankland (38) and Scott Richardson (36).
The home side soon hit problems and struggled to 65-8 as paceman Elliot Richardson took 4-13.
With Farsley's match at Townville being abandoned without a ball being bowled, Woodlands crept one point above them into second place.
The day's only century came at Moorend where Lightcliffe's Matt Baxter made an unbeaten 112 before his side's match with Cleckheaton was abandoned.
Baxter made his runs from just 61 balls with nine sixes and tens. Adam Wainwright (32) shared a fourth-wicket stand of 137 with his skipper. Play was abandoned with Lightcliffe 168-4 from 26 overs.
There was no play at all in the game between champions Hanging Heaton and Pudsey St Lawrence at Tofts Road.
Wrenthorpe scored a dramatic one-wicket win off the final ball of their rain-reduced match at Yeadon.
The victory came in a contest reduced to 20 overs per side and enabled them to climb above Methley into second place.
That was because the game between leaders Scholes and Methley was abandoned after just 8.2 overs.
It means the title race is set for a dramatic finale with Wrenthorpe and at home to Scholes in their final game.
Scholes have 322 points, Wrenthorpe 318 and Methley 315 in the tightest of battles.
Matthew Race was a key figure in Wrenthorpe's win. He took 3-33 and followed up with a timely 29 as Wrenthorpe edged past Yeadon's 131-7.
Andrew Pickering (45) and Jake Wray (40) top scored for Yeadon as Race and Jonathan Rudge (3-33) proved to be the best of the Wrenthorpe bowlers.
Yeadon, who are just five points above the relegation zone, pushed Wrenthorpe all the way.
Paul Machell took 3-19 and made the visitors battle hard for the win.
Bowling Old Lane's hopes of avoiding relegation suffered a setback when they went down by 27 runs against Birstall.
Craig Wood took 4-35 as Birstall successfully defended their 20-over score of 148-8. Ayyaz Akram (43no) top scored in Old Lan's 121-7.
Birstall's top scorer was opener Ian Carradice with 32 as Arsalan Ijaz took 3-45.
Old Lane will be hoping that bottom-team Birstall do them a favour next week as they play Yeadon in their final game.
Bankfoot had reached 20-0 at Baildon when play was washed out while there was no action at all in Gomersal v Undercliffe and Morley v Ossett.
Hunslet Nelson boosted their chances of taking the second promotion place in Championship Two with a 59-run win over Hopton Mills in the only match to be completed.
Nelson made 155 in 35.1 overs thanks to Andrew McIntosh (47) and Will Stiff (31).
Andy Grey (5-40) and Michael Carroll (4-41) took the bowling honours for Mills.
Glen Thompson (4-7) and Stiff (3-17) did sterling work for Nelson as they dismissed their opponents for 96. Mark Ashton top scored with 38.
The only other game to get started saw Northowram Fields make 46-1 against Spen Victoria before the weather closed in.
There was no play at all at Keighley v Idle, Liversedge v Altofts, Brighouse v Carlton and Buttershaw St Paul's v Hartshead Moor.
Only one game started in the Conference with East Ardsley making 9-0 off nine balls before play was washed out.
There was no play at all at Wakefield St Michael's v Heckmondwike & Carlinghow, Great Preston v Gildersome, Azaad v Windhill & Daisy Hill,, Sandal v East Leeds and Oulton v Crossbank Methodists.
TOP PICTURE: Lightcliffe skipper Matt Baxter celebrates his ton
Picture: Ray Spencer