A thrilling last-ball victory for Ebberston at Division A title-holders Staxton was the home side's first AndyHire Evening League defeat since May 2014.
Ebberston secured the win from the final delivery on Thursday night, reaching 106-3 thanks to an unbeaten 34 from Tom Brickman, who had earlier bagged 3-17 for the visitors as Staxton posted 104-6.
James Armstrong hit 34 and Linden Gray 27, but the home side fell short, allowing Ebberston to move above them into second place in the league table.
A fine all-round show from Darren Mills steered Wykeham to an eight-wicket home win against Scalby which put them in top spot.
Mills scooped 3-25 as the visitors batted first and made 93-8, Joe Hills (28) the only Scalby batsman to shine.
Mills then hit 35 and Mark Bruce 24 as the hosts wrapped up the win to maintain their 100% start to the season.
Heslerton eased to a 36-run success against Filey, the villagers' first win of the season.
Fine knocks from Stu Pickard (59) and Kristian Wilkinson (42) steered the hosts to 163-4, and 3-19 from spinner Dan Jeminson helped peg Filey back to 127-7 despite an unbeaten 29 from Dave Brannan.
Ravenscar moved up to second place in Division C thanks to a nine-wicket home triumph against basement club Snainton.
Stalwart Will Warwick was the top home bowler with 3-11 as Snainton limped to 62-6, with solid knocks from openers Adam Graham (32no) and Joe Bayes (29) making sure of the Ravenscar win.
Staxton B boosted their promotion hopes with a 15-run win at Ebberston B.
The visitors batted first and made a moderate 89-7, Craig Hill top-scoring with 37 while Cameron Cooper bagged 4-20.
Staxton bowler Kyle Outhart then snapped up 4-37 to send Ebberston crashing to 74 all out.
The night's best figures of 4-15 from 60-year-old seam bowler Jim Hunter helped Valley Bar Nomads to a 26-run home win against Wykeham C.
Nick McNally delivered a first-class knock of 47 for the Nomads while Ben Atkinson's unbeaten 25 helped them set a target of 108-7, Adam Bailey taking 3-17 for the village side.
Hunter then ripped through the Wykeham batting order, with Jon Remmer's unbeaten 25 their only innings of note.
All other games were called off last night due to the pitches being too wet for play.
AndyHire Scarborough Evening Cricket League results for Thursday May 26
DIVISION A (*Denotes home team)
*Heslerton 163-4 (Stu Pickard 59, Kristian Wilkinson 42, Gary Hall 23) beat Filey 127-7 (Dave Brannan 29no, Dan Jeminson 3-19) by 36 runs.
Ebberston 106-3 (Tom Brickman 34no) beat *Staxton 104-6 (James Armstrong 34, Linden Gray 27, Tom Brickman 3-17) by 7 wkts.
*Wykeham 94-2 (Darren Mills 35, Mark Bruce 24) beat Scalby 93-8 (Joe Hills 28, Darren Mills 3-25) by 8 wkts.
*Seamer v Ganton - Draw - Ground too wet for play.
*Cayton v Scarborough, *Flixton v Seamer B, *Scalby B v Wykeham B, *Sherburn v Cloughton - all draws, grounds too wet for play.
Staxton B 89-7 (Craig Hill 37, Cameron Cooper 4-20) Beat *Ebberston B 74 all out (Kyle Outhart 4-37) by 15 runs.
*Ravenscar 63-1 (Joe Bayes 29, Adam Graham 32no) beat Snainton 62-6 (Will Warwick 3-11) by 9 wkts.
*Valley Bar Nomads 108-7 (Nick McNally 47, Ben Atkinson 25no, Adam Bailey 3-17) beat Wykeham C 82 all out (Jon Remmer 25no, Jim Hunter 4-15) by 26 runs
*Cloughton B v Forge Valley B, *Forge Valley v Cayton B, *Muston v Flixton B - draws - grounds too wet for play.