The Guernsey Bass Anglers Sportfishing Society run a number of club and competitons during the year as well as an open competition which allows non-members to enter.
Club competition times are from 6.00pm Fridays to 09.00am Mondays (With the exception of the Open Festivals)
| Competition Dates (2010) | Event |
| 1 January to 31 December | GBASS Championship |
| 1 January to 31 December | GBASS Specimen Shield |
| 26 February to 28 February | Club w/end competition Pairs and Individual |
| 1 March to 31 May | GBASS Spring Challenge Individual – heaviest fish |
| 26 March to 28 March | Club w/end competition Pairs and Individual |
| 1 April to 31 October | GBASS Boat Championship |
| 23 April to 25 April | Club w/end competition Pairs and Individual |
| 14 May to 16 May | Club w/end competition Pairs and Individual |
| 18 June to 20 June | Club w/end competition Pairs and Individual |
| 9 July to 12 July | Club w/end competition Pairs and Individual & Interclub challenge re BBC festival |
| 26 August to 30 August | GBASS – Guernsey Open Bass Festival 2009 – Individual / Pairs / Interclub Challenge |
| 24 September to 26 September | Club w/end competition Pairs and Individual |
| 8 October to 10 October | Club w/end competition Pairs and Individual |
| 26 November to 28 November | Club w/end competition Pairs and Individual |
| 10 December to 12 December | Club w/end competition Pairs and Individual |