A rip-roaring 93 by opener Andy Tomlinson, plus a half-century from partner Steve Foster steered the Washfield Lane men to 227-7, then Wickersley were toppled for 122 by Umiad Asif's 4-32 and Dave Burden's 3-32.
Whitley were unable to dislodge the Whiston tail-enders, who clung on at 126-8 in a 35-over innings.
The leaders knocked off the runs for the loss of four wickets, Alex Fletcher cracking 55, but the result only gave the Hall five points, against Treeton's seven.
Wath took a maximum from the visit of Tickhill, who were out for 127, Paul Wilkinson grabbing 5-35. Wath moved to a nine-wicket victory, Rob Barlow making 64 not out and teenager Archie Ogden 49 not out.
Barnsley hit 179-5 in their 42-over knock, Steve Walters reaching 78 before visitors Aston Hall held on at 135-9 to frustrate the home attack of Jamie Green (4-25) and Andy Ivill (3-59). Aston's Scott Jones hit 45 not out and took 4-55 against his former club.
Elsecar recorded a five-wicket win over Hallam, who fell for 112. Alex Davis (44) and Iftikhar Afzal (3-28) were in form for the Armroyd Laners.
Rotherham Phoenix batted strongly to reach 255-7, with half-centuries from Bilal Ejaz and Amir Riaz against Houghton Main, who avoided outright defeat at 161-9, Amir Rashid taking 4-23.
Bradfield made 145 at Darfield in Division One, Dimitris Triandafillithis claiming 5-45, but still won by 50 runs as Tom Coulson took 5-27 and his junior partner Josh Coulson claimed 3-22.
Several matches were called off due to the rain but Whitley Hall completed a winning double when their Division Two team answered Warmsworth's 184-5 with 187-3, opener Tim Wadsworth's 98 including 15 fours.
The only century-maker of the day was Norton Oakes' Chris Baker, who plundered 116 of his side's 221-2 against Division Three guests Doncaster Town, who were dismissed for 91.