Amongst the changes to the domestic calendar for 2017 are the creation of distinctive blocks of white-ball cricket, with matches in the Royal London One-Day Cup during the first half of the summer, followed by the NatWest T20 Blast during the second half of the season, with Twenty20 cricket taking centre-stage during July and August.
When Twenty20 cricket was first introduced in 2003, the zonal stage of the competition comprised six zonal games between June 16th and 24th, whilst the following year, the zonal games took place during the first fortnight of July, with Glamorgan also progressing to Finals Day on August 7th at Edgbaston.
For the next three summers, the competition comprised eight zonal games during June and July, before there was further expansion, initially to ten group games from 2008, and then from 2010 sixteen, with the opening batch of fixtures taking place in May.
2012 and 2103 saw a return to ten zonal games, before another amendment in 2014 with fourteen matches spread across May and July, with Glamorgan reaching the quarter-finals in the first week of August where they narrowly lost to Lancashire at Old Trafford.
2017 will see a block of fourteen zonal games during the second half of the summer, with Glamorgan’s T20 campaign starting on July 7th with the visit of Hampshire to The SSE SWALEC, with the same ground also hosting their final zonal game on August 18th when the Welsh county meet Middlesex.