ESSA, the organisation which guards against illegal gambling and match fixing in sport, issues the alerts if its systems detect suspicious activity.

One-hundred were issued last year, with tennis - which is currently at the centre of serious match fixing allegations - accounting for 73 of those.

There were also 19 alerts involving football, and two each for table tennis, ice hockey, snooker and greyhound racing.

The alerts were triggered all over the world, with 38 originating in Europe and 24 coming from Asia.

Sixteen centered on North America with 11 from South America and nine from Africa.

In the final quarter of 2015, there were 35 alerts with 24 involving tennis.

"The start of 2016 has seen a worldwide focus on alleged match-fixing in tennis," said ESSA chairman Mike O'Kane after the publication today of ESSA's integrity report.

"Whilst tennis constituted the largest proportion of suspicious betting alerts identified by ESSA members, it should be noted that the vast majority of tennis events are fair.

"ESSA has been working closely with the tennis authorities on this issue and remains committed to working with all of our partners in sport."

Allegations of widespread match-fixing in tennis were revealed on the eve of the Australian Open, the first Grand Slam of the year, last month.

An investigation by the BBC and Buzzfeed claimed that 16 players ranked in the top 50 in the world across the past decade have been repeatedly flagged as having potentially thrown matches.

It was also alleged that the players were allowed to continue playing despite reports being made to the Tennis Integrity Unit (TIU), which is a joint initiative of the Grand Slam Board, the ITF, the ATP World Tour and the Women's Tennis Association (WTA). 

Earlier this month it emerged that two umpires, Kazakhstan's Kirill Parfenov and Croatia's Denis Pitner, had been sanctioned for betting offences in 2015.

Parfenov was banned for life with Pitner given a 12-month sanction, and the ITF were criticised for the delay in the information becoming public.

The London-based orgnaisation have been summoned to explain themselves at the UK Government's Culture, Media and Sport Select Committee while there was a further scandal when it was confirmed that Pitner worked at the 2015 US Open despite his suspension.

An Independent Review Panel (IRP) has now been established to investigate "thoroughly" the allegations made against tennis.

Jatuporn Nalamphun, a 22-year-old unranked player from Thailand, was suspended for 18-months yesterday and fined $5,000 (£3,500/€4,500) after being found guilty of betting offences by the TIU. 

ESSA's full findings can be found here.