al online gross win for the UK gambling market is estimated to be over £5bn by the end of 2020, research has revealed.

A UK gambling survey conducted by Barclays and YouGov was sent to Gambling Insider, showing that UK online gross win will be approximately £4bn for 2016 and will continue to increase for the following four years.

The UK’s annual retail gross win, which was approximately £3bn last year, is estimated to experience a minor decline in the same time period but is still expected to be around the £3bn figure for 2020.

Those particular numbers were provided by Barclays Research and consultancy H2 Gambling Capital.

Figures provided by Barclays Research, Betfair and Paddy Power showed Bet365 as the operator to have generated the highest volume of online revenues in the last 12 months with £1.28bn, ahead of Paddy Power and Betfair in joint-second with £1bn.

William Hill has been named as the most trusted brand, with 22% of 1,107 respondents choosing Hills out of a choice of seven operators as the most trustworthy, while Paddy Power and Betfair tied for second with 16%.

Betfair ranked highest with 29% when respondents were asked which operator offers the best odds, followed by Paddy Power with 21% and Bet365 with 15%.

Paddy Power was voted as having the best advertising with 52%, gaining more than three times the votes of second-placed Bet365 with 14%.