In Marshall Hatchick Two Counties Division Six, Stowmarket beat Felixstowe and Corinthians by 152 runs.
Dale Watling (90) and Paul Blake (71) were the main contributors as Stowmarket posted 212-6.
In reply, Josh Finbow (6-28), Kierran Haynes (2-22), George Tillbrook (1-6) bowled Felixstowe out for 60.
In Division Nine, Stowmarket II lost to Brockley by 13 runs.
Clive Witherly (28 not out) and Richard Baxter (20) helped Stowmarket to 111 after restricting Brockley to 124 Nik Mayhew (4-18), Lars Mardell (3-16), Richard Baxter (2-17), Harry Tillbrook (1-35).
In Division Nine West, Bardwell beat Nowton by 19 runs.
Put into bat, Bardwell captain Chris Grimwood fell for 49.
Contributions from all the team including a well-made attacking 31 from James Larder saw the league leaders post a score of 190.
In reply, Carl Grimwood (1-15) made an instant impact removing the Nowton captain for a duck, with Robbie Firth (4-48) also on song.
Will Stobbart, 15, gave his side a real chance with a chanceless knock of 63.
But further wickets for Majid Bajwa (2-31), Grimwood (2-10) and four catches behind by Jacob Wade saw Bardwell over the line by 19 runs.
In Hunts County Bats Division Two, Stowmarket beat Stowupland by five wickets.
Josh Finbow (3-46) and Craig Watling (2-35) were among the wickets as Stowupland posted a competitive 226-8.
Dale Watling (94) fell six runs short of a century and was well-supported by Adam Hawes (47) as Stowmarket reached their target with five wickets to spare.
Bardwell’s Sunday sides suffered defeats at Woolpit and Earl Stonham.
n Meanwhile, Suffolk take on Hertfordshire at Bury’s Victory Ground on Sunday (11am) in their final Unicorns Knock-out Trophy group game. For a full preview log on to www.buryfreepress.co.uk