(Scorecard unavailable).
Chester booked their place in the 2019 Liverpool Echo KO Final with a 36 run win over Neston at Filkins Lane.
Winning the toss and batting first, Lloyd Aspin got the innings off to a flyer but a mid order slump saw Chester weigh in with 165-7 when 200 had looked likely.
Tight bowling restricted the Shrimpers to 129-6 on a gloomy evening in front of a big crowd.
Chester will now play Formby or Ormskirk in the final on a date and at a venue to be confirmed.