1. As a 22 year old, Olajuwon played 35.5 minutes per game in all 82 games of the 1984-1985 season. He scored 20.6 points, grabbed 12 rebounds and blocked 2.7 shots per night. 9.LeBron shined, averaging 21 points, 5.5 boards, six assists and 1.6 steals per game while playing a touch under 40 minutes a night. 8.Duncan arrived in San Antonio and helped lead the Spurs to 56 wins in his rookie season, a mere 36 more wins than the team had compiled the previous year. In doing so, he averaged 21 points, 12 rebounds and 2.5 blocks per game while playing just a shade under 40 minutes per night. 7.Iverson stepped right in and played 40 minutes per night for the 22-win Sixers, who actually won four more games in Iverson's rookie year than in the previous one. He scored 23.5 points and dished out 7.5 assists per game that year, the assist total marking the second highest of his career. 6.Bird was Rookie of the Year in 1980, averaging 21.3 points, 10.4 rebounds and 4.5 assists: leading what was in large part the same roster from a year prior to a 32-win improvement. 5.The Admiral (David Robinson) exploded onto the NBA scene in 1989, scoring 24.3 points, grabbing 12 rebounds and blocking four shots per game. More importantly, the Spurs went from 21 wins in 1988-1989 to 56 in 1989-1990. 4.In the first of his 20 NBA seasons, Kareem dominated right off the bat, averaging 28.8 points and 14.5 rebounds per game as a rookie. He was an easy choice for Rookie of the Year that season, and led the Bucks to 56 wins in just their second season of existence—29 more than they'd accumulated the year before. 3.There were signs of his indelible greatness very early on. In his first season out of North Carolina, Jordan played all 82 games, averaged 38 minutes per night and scored 28.2 points while shooting over 51 percent from the floor. 2.Chamberlain was drafted by the Philadelphia Warriors out of the University of Kansas in 1959, and immediately took over the NBA. He scored 37.6 points and corralled 27 rebounds per game that year, his third best statistical season. 1.The original Big O, Robertson once averaged a triple-double in a single season.

It wasn't his rookie year, it was his second. Still, that first season was the greatest by a rookie in league history. Oscar went to the University of Cincinnati and was then taken by the Cincinnati Royals with the first overall pick in the 1960 draft. Oscar would go on to average 30.5 points, 10 rebounds and 9.7 assists per game. About as close to a triple-double as it gets.

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