Hosts Aston reached 289-7 with Matt Cartwright’s 118 off 126 balls including 15 fours.
Early-season leaders Wath fell just short at 268-9, with opener Derek Mitchell cracking 101 off 87 deliveries and Rob Barlow chipping in with a half-century.
Elsecar dismissed hosts Coal Aston for 143, Dave Rodgers hitting 55, Chris Timms (33), with Glenn Yates bagging 5-34 for the champions, who cruised to 145-1, Ainsley Swallow including 21 fours and three sixes in his 111.
Ashley Fiddler (69), James Stuart (55no) and Nicky Page (40) led Tickhill to 240-7 at home to Hallam, who won at 241-7, opener Vaidik Raj hammering 15 boundaries in his 126 and Rob Marcroft contributing 58.
Norton Oakes had hosts Whiston back in the pavilion for 176, opener Andy Tomlinson making 55 as John Ledger took 4-37.
Oakes eased to 178-4, Chris Baker making an unbeaten 65 and Dave Revill (46).
Whitley Hall fell for 157 at Wickersley, Shahjaan Younis claiming 3-20 before the hosts went on to an eight-wicket triumph, Haidar Jahangir hitting 44, Richard Harrison 40, and Younis completing his afternoon’s work with an unbeaten 45.
Shiregreen were top-scorers of the day in their Division One match at Hallam, ratting up 295-8, Aslam Hyat blasting 110 and Liquat Ali 66, the pair taking them from 31-5 to 172-6.
Hallam included another of the day’s centurions in their 198-9 reply, Richard Neal making 100, with 15 fours.
In Division Two, opener Ben Percival’s 112 took Sheffield United to 231-2 but Tom Coulson’s unbeaten 101 led Bradfield home at 235-2.