Some of the feats of fast scoring have come when batters have faced non-regular bowlers in situations when a team needs to concede quick runs in order to set-up a declaration and a run-chase. These situations are denoted by the symbol (#) below.

The first instance of six sixes in an over came at Swansea in 1968 when Malcolm Nash, normally a left-arm swing bowler was bowling left-arm spin to Garry Sobers of Nottinghamshire. Remarkably, at the same ground in 1977 Lancashire’s Frank Hayes struck Nash for five sixes in an over when Nash was bowling in his normal style.

For Glamorgan

34 (666646) MP Maynard off SA Marsh v Kent at Swansea, 1992 (#)
32 (664664) CC Smart off G Hill v Hampshire at Cardiff Arms Park, 1935
31 (62460661) J Mercer off R Howorth v Worcestershire at Cardiff Arms Park, 1939
30 (464466 MP Maynard off K Sharp v Yorkshire at Sophia Gardens, Cardiff, 1987 (#)
28 (644446) JE McConnon off N Thomson v Sussex at Cardiff Arms Park, 1955
(066466) Javed Miandad off Asif Din v Warwickshire at Edgbaston, 1981
(606466) SP Jones off DS Lehmann v Yorkshire at Scarborough, 2001
26 (04604660) DE Davies off GV Gunn v Nottinghamshire at Swansea, 1939
(666242) DJ Shepherd off E Smith v Derbyshire at Cardiff Arms Park, 1961
(4444006) MP Maynard off CT Tremlett v Hampshire at Sophia Gardens, Cardiff, 2003

Against Glamorgan

36 (666666) GS Sobers off MA Nash for Nottinghamshire at Swansea, 1968
34 (646666) FC Hayes off MA Nash for Lancashire at Swansea, 1977
34 (664666) G Chapple off PA Cottey for Lancashire at Old Trafford, 1993 (#)
32 (664646) G Chapple off PA Cottey for Lancashire at Old Trafford, 1993 (#)
30 (606666) Majid Khan off RC Davis for Pakistanis at Swansea, 1967
26 (644444) AH Gilligan off JT Bell for Sussex at Eastbourne, 1928
(626606) JA Flavell off DJ Shepherd for Worcestershire at Swansea, 1956
(664466) ST Clarke off MA Nash for Surrey at Swansea, 1981