The Cranked Anvil Quarterly Prompt Competition is open all year round, with deadlines on 1st July, 1st October and 1st April.
The prompt elements of each quarter are specified on their site (link below).
Entry fee: £5 for one entry, £8 for two, £10 for three.
1st prize – £150
2nd prize – £75
3rd prize – £30.
The three winning entries will be published on the website.
Word count: 700-1000, not including the title.
Full details here.