Indonesian President-elect Joko Widodo, left, and his defeated opponent Prabowo Subianto. Pic: AP.

JAKARTA, Indonesia (AP) — Indonesia’s Constitutional Court has opened a hearing on a dispute over the results of the July 9 presidential election, which ended in the victory of Jakarta Gov. Joko Widodo.

Losing candidate Prabowo Subianto filed complaints to the court last month, alleging that “structural, systematical and massive frauds” by the Election Commission has damaged his chances of leading the country.

(MORE: Prabowo still confident ahead of ‘pointless’ Indonesia election appeal)

During the first hearing Wednesday, his lawyers say millions of votes cast for the Suharto-era general were lost due to irregularities at more than 52,000 polling stations.

They allege that poll officials inflated the other candidate’s results, voters used improper registration cards and recounts were done inconsistently.

The hearing resumes next week. The court’s ruling, which cannot be appealed, is expected Aug. 21.