It is unprecedented in Africa for an opposition court challenge against a presidential election to succeed.
Kenyans have praised Justice Maraga for having the courage to rule against the man who appointed him, President Uhuru Kenyatta, and for restoring their faith in the independence of the judiciary.
Several Kenyan papers have referred to Justice Maraga as a person of integrity, which they attribute to his being a devout Seventh-day Adventist.
He reportedly told an interview panel that if appointed Chief Justice, he would never preside over a case on a Saturday, a day of rest and worship for members of the Adventist faith.
Some have speculated that this may have been the reason the first sitting of the presidential election petition was held on a Saturday night, after the Sabbath had ended.
It is reported that while being vetted for his job, he was confronted with allegations that he had taken bribes.
He surprised the public by standing before TV cameras and swearing on a Bible that he had never taken a bribe in his life.
'Not a government project'
Justice Maraga, 66, graduated as a lawyer 40 years ago from the University of Nairobi, before going into private practice.