For Glamorgan
1 – 313* DL Lloyd v Derbyshire at Sophia Gardens, Cardiff, 2022
2 – 309* SP James v Sussex at Colwyn Bay, 2000
3 – 335* SA Northeast v Middlesex at Lord’s, 2024
4 – 410* SA Northeast v Leicestershire at Leicester (Grace Road), 2022
5 – 280* RG Duckfield v Surrey at The Oval, 1936
6 – 205* CB Cooke v Surrey at The Oval, 2021
7 – 191* CB Cooke v Leicestershire at Leicester (Grace Road) 2022
8 – 200 GG Wagg v Surrey at Guildford 2015
9 – 125 RDB Croft v Essex at Chelmsford 2004
10 – 113 M de Lange v Northamptonshire at Northampton 2020
11 – 73 SAB Daniels v Gloucestershire at Swansea, 1982 and DJ Shepherd v Derbyshire at Cardiff Arms Park 1961
Against Glamorgan
1 – 313 SJ Cook for Somerset at Sophia Gardens Cardiff, 1990
2 – 277* RG Twose for Warwickshire at Edgbaston, 1994
3 – 322* MB Loye for Northamptonshire at Northampton, 1998
4 – 302 WR Hammond for Gloucestershire at Rodney Parade, Newport, 1939
5 – 225 JH Parsons for Warwickshire at Edgbaston, 1927
6 – 266 DJ Vilas for Lancashire at Colwyn Bay, 2019
7 – 197 J Whitehouse for Warwickshire at Edgbaston, 1980
8 – 142 PH Edmonds for Middlesex at Swansea, 1984
9 – 130 JL Clare for Derbyshire at Derby, 2011
10 – 94 D Klein for Leicestershire at Sophia Gardens, Cardiff, 2018
11 – 90* JV Murdin for Northamptonshire at Northampton, 1925