Of the 83 people implicated in the case, 28 were professional tennis players, playing in the ITF Futures and Challenger categories, and one whose identity was not revealed competed in the 2018 US Open.
Prime Minister Pedro Sanchez's government is anxious to get the country up and running again without igniting a second wave of infections as the economy reels and Spaniards gradually emerge from nearly eight weeks under lockdown.
The Spanish government has pledged to stop the poll, which is declared illegal by the country's constitutional court.