Gloucestershire captain Michael Klinger has suffered a broken arm, ruling him out for the rest of the season.
Group B winners Nottinghamshire will host local rivals Derbyshire in the quarter-finals of the One-Day Cup.
Billy Godleman scores 96 as Derbyshire beat Gloucestershire by 53 runs to claim a One-Day Cup quarter-final place.
Gloucestershire beat Worcestershire by seven wickets at New Road, despite a superb 179 from Richard Oliver.
Gloucestershire's stand-in captain Alex Gidman scores a century before Worcestershire fight back on day two at New Road.
Gloucestershire bowl out Worcestershire for 194 at New Road and reply strongly with 181-2 at the close on day one.
Nottinghamshire sign Gloucestershire all-rounder Will Gidman on a three-year contract from the start of next season.
Gloucestershire captain Michael Klinger urges his side to secure a home quarter-final in the One-Day Cup.
Ian Cockbain makes 76 as Gloucestershire beat Worcestershire by five wickets to reach the last eight of the One-Day Cup.
Gloucestershire and Lancashire settle for a point each after their One-Day Cup match is abandoned without a ball bowled.
Persistent rain ends any hope of a result in the One-Day Cup tie between Essex and Gloucestershire at Chelmsford.
Michael Klinger's half-century helps Gloucestershire to a seven-wicket One-Day Cup victory over Leicestershire.
Spinner Jack Taylor takes 4-38 as Gloucestershire recover from a poor batting display to beat Hampshire in the One-Day Cup.
Will Gidman's unbeaten 71 guides Gloucestershire to a three-wicket One-Day Cup win over Yorkshire at Headingley.
David Willey takes four wickets and hits the winning runs as Northants beat Gloucestershire in the One-Day Cup.
Glamorgan reach the T20 Blast quarter-finals after cruising to victory over Gloucestershire with eight overs to spare.
The One-Day Cup begins on Saturday, marking the return of the 50-over format to county cricket after a four-year gap.
A record-breaking last-wicket stand fails to stop Division Two leaders Worcestershire beating Gloucestershire by eight wickets.
Worcestershire force Gloucestershire to follow on at Cheltenham after skipper Daryl Mitchell carries his bat for 167.
Daryl Mitchell scores an unbeaten opening day century for Division Two leaders Worcestershire at Gloucestershire.