Stephen Curry has a defensive rating of 109.9 in the NBA Finals in his career.

stephen curry defensive rating finals
NAMESERIESGPDRTGMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Stephen CurryStephen CurryNBA Finals34109.939.027.35.86.01.60.33.58.820.443.24.511.339.55.25.691.71,327928196204551112096+138
StatMuse has game-level data for defensive rating going back to the 1974 Finals.