For example I looked up Kenyon Martin today. I remember him being an all-star so I figured he must have had multiple 20/10 seasons. Turns out he never averaged more than 17 ppg and only got 10 rpg one season.
Muggsy Bogues surprised me positively. I thought he was just a role player like Early Boykins. Turns out he had several seasons averaging over 8 apg and a couple seasons averaging over 10 apg.
Speaking about rebounding, Danny Fortson is a practically forgotten undersized big who was a beast on the boards for a while.
He was a 6ft7 power forward, who would also play at center at times, that averaged 12 RPG (and 4 ORPG) in a season twice. Once with the Nuggets in the 1998-99 season and once with the Warriors in the 2001-02 season.
He constantly played on bad teams and only made the playoffs once in his later years with Seattle, but he was a terrific rebounder who isn’t talked about at all now.