Michael Jordan had a defensive rating of 99.4 in 1995-96.

mj drtg in 1996
NAMESEASONTMGPDRTGMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Michael JordanMichael Jordan1995-96CHICHI8299.437.730.46.64.32.20.52.411.222.649.51.43.242.76.78.083.43,0902,49154335218042197195
StatMuse has season-level data for defensive rating going back to the 1973-74 season.