MotoGP has released an official statement addressing the track surface issues that affected the Brazilian Grand Prix at the Goiânia circuit.

According to the championship, the problems were linked to both extreme weather and an underlying infrastructure failure.

“Following the challenges with the track surface during the Brazilian Grand Prix, the Circuit and Race Promoter have carried out investigations into the causes, including the unprecedented rainfall which impacted the final works,” the statement reads.

A major issue emerged on Saturday when “a significant defect in the track appeared due to the collapse of an undocumented old sewage system beneath the surface.” Although the affected area was off the racing line, repairs were carried out immediately, allowing track action to resume later in the day.

Further concerns developed on Sunday. After the Moto2 race, “localised asphalt degradation caused by the significant heat and track activity became apparent,” raising fears about the surface holding up for the MotoGP race.

Despite efforts to clear loose material, MotoGP admitted that “a small risk of continued surface deterioration during the MotoGP race remained.” As a result, Race Direction opted to intervene.

“In the interest of safety, Race Direction took the decision to reduce the race to 23 laps (75% of the original race distance),” MotoGP confirmed, adding that teams were informed directly on the grid.

The statement also outlined that circuit homologation was managed by the FIM more than a year in advance. MotoGP, the circuit, and the promoter have acknowledged the issues and confirmed they will be resolved before the series returns next season.