Mildenhall (173) narrowly went down to their second consecutive defeat as Hadleigh (175-9) sneaked home by one wicket in Marshall Hatchick Two Counties Championship Division One.
In the ninth over, Kyle Tanner (4-37) got one to bounce and Joe Reed (10) edged to wicketkeeper Ben Wallis.
Adam Trett and Alex Reynolds took the score past 100 before the latter was stumped off a full toss from Luke Ibbs (6-55) for 51.
Kobus Scholtz (12) tried to raise the run-rate, but holed out to Marlon Dias off Ibbs.
Trett (45) was out three balls later when he gave Kalpesh Ellis an easy catch.
The run chase stalled as Steve Lankester (1) and James Holmes (2) fell cheaply.
Karl Holmes (6) and Ben Shepperson (24) took the score past 150, but Hall lost their last two wickets with the score on 173.
In reply, James Holmes bowled Marlon Dias (14) and had Josh Davey (9) caught in the slips by Adam Trett.
Ibbs and Danny Rock (4) took the score to 50, with Ibbs dominating, before Holmes took a magnificent caught and bowled to see the back of Rock.
Jack Beaumont dismissed Ben Wallis (9), Tanner (6) and Ellis (1), while Scholtz got Paul Budd (1) as Hadleigh slipped to 93-7, but Ibbs and Tim Rix got them back into the game.
Beaumont (4-45) got the breakthrough when he bowled Rix (23) and Lankester the ninth wicket when he had Alex Milnes (0) caught behind.
Ibbs (94no) would not be denied he scored the winning boundary in the final over.
n Mildenhall II (183-9) recovered from 15-3 to see off Woodbridge and OW (109) in Division Three, thanks to Jordan Francis (55), Andy Youngs (45no), Martin Kingdon (4-3) and Jack Loveday (3-32).
n Mildenhall III (128-9) skittled Earl Stonham (70) cheaply in Division Five, with Andrew Zajac (4-27) and Martin Taylor (3-16) doing the damage.
n Taha Ahmed became the club’s first player to score a Two Counties century this season and Paul Thurston (62) the first to aggregate 1,000 runs for the fourth team as Mildenhall IV (288-4) defeated Maldon (180) by 108 runs in Division Seven. Joe Turner led the bowling figures with 4-17.
n Mildenhall Sunday (287-3) remained unbeaten in Hunts County Bats Suffolk League Division One after beating off Bury St Edmunds Sunday (201-5), with 90no for Kobus Scholtz, a half-century for Alex Lack and 40s for Matt and Jamie Allen. Sam Bishop (74no) and Henry Colburn (62) were Bury’s top scorers.
n Mildenhall Sunday II went down at Bardwell (266-4) by 184 runs in Division Three, with Mike Lumley (92no) doing the damage.
Majid Bawa (47 and 2-11), Steve Wade (33), Robbie Firth (4-35) and Craig Nurse (3-20) also provided significant contributions.