On December 30, 1990, in a game against the Denver Nuggets, Orlando Magic point guard Scott Skiles set an NBA record with 30 assists, surpassing Kevin Porter’s record of 29 set in 1978.
The Magic would go on to beat the Nuggets 155-116 with Skiles adding 22 points to go along with his record-breaking assists.
The most unexpected record of the major stats in NBA history, maybe Larry Kenon is more understated for 11 steals shared with Kendall Gill against the Heat in 99 (in a game where Alonzo Mourning had 23/17 and 9 blocks and the Heat still lost to the Nets).