Tokyo held its second official rehearsal Thursday for its final presentation before International Olympic Committee members vote Saturday on the host city for the 2020 Summer Olympics.

The rehearsals were held in the same hall where the actual 45-minute presentations will take place. Rivals Tokyo, Madrid and Istanbul will make their last pitch immediately before the 100 or so IOC members vote on the host city.

Istanbul will present first, followed by Tokyo and Madrid.

Tokyo Gov. Naoki Inose said the Japanese delegation's presentation was nearly perfect.

"I think we've definitely improved," said Inose, who gave Team Japan nearly full marks for their first official rehearsal held Tuesday. "It is really hard for me to judge myself, but those who were there said it was nearly perfect. The people who were watching said it got even better. We want to keep this momentum going."

Tokyo is seen as the slight favorite in a tight race, but has been scrambling to get a handle on the nuclear crisis at the Fukushima No. 1 nuclear power plant, which has been battered by recent reports of highly radioactive groundwater flowing into the Pacific Ocean as well as similarly contaminated water leaking from faulty storage tanks.

Prime Minister Shinzo Abe is expected to explain the emergency measures the government is taking over the crisis during the presentation.

"The Japanese government is taking the responsibility to solve this problem," Inose said.