All but two of the nine teams in Group A remain in contention after a day of unlikely results including defeats for the top three. Leicestershire missed the chance to advance, losing at Kent despite Hamza Shaikh's 93 and Ben Green's unbeaten 57. Daniel Bell-Drummond's sensational unbeaten 133 helped Kent win by six wickets, leaving four teams on 16 points.

Middlesex secured a knockout spot in Group B by beating eliminated Derbyshire, with Ben Geddes posting 109. Durham sit third after a 20-run win over Essex, Colin Ackermann 80 not out and Ben Stokes hitting 43 off 27. Warwickshire kept hopes alive with a two-wicket win over Lancashire, Vansh Jani scoring a career-best 88 to chase 311.

Gloucestershire beat Nottinghamshire as James Bracey hit 103, while Northamptonshire thrashed Somerset. Hampshire hammered their second-best List A score to beat Sussex, 18-year-old Ben Mayes scoring 109 and Toby Albert hitting six consecutive sixes. Glamorgan edged Worcestershire on the final ball. Tuesday's fixtures will decide the qualifiers.