Euro football in June and July stirred up greed for illegal betting.
The latter generally feed into organized crime networks, in particular for acts of money laundering and corruption.
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Raids by investigators in Asia and Europe have seized around 6.7 million euros in cash, as well as computers and cellphones linked to bets of around 390 million euros, according to Interpol.
1,400 people were arrested.
The Hong Kong police in particular took into custody 800 suspects, including the alleged head of a bookmaker network controlled by the Chinese mafia.
Police got their hands on $ 2.7 million in cash and records of hundreds of millions of bets.
In Italy, some 280 betting shops were checked during the competition and fines were imposed on illegal activities.
Most of the fraud has concerned online betting worldwide.
For Interpol, illegal betting has been fought for several years.
In total, these operations made it possible to arrest 19,100 suspects from seizing $ 63 million in cash and shutting down more than 4,000 pharmacies or platforms cumulating $ 7.3 billion in illegal bets.