Kareem Abdul-Jabbar put up the most points per game by a player in the NBA Finals in his 16th playoff, with 21.7 per game.

who has the highest points per game in their 16th finals
Abdul-JabbarDuncan21.715.4
NAMESERIESGPPPGMPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Kareem Abdul-JabbarKareem Abdul-JabbarNBA Finals621.733.87.30.80.52.51.78.316.351.00.00.20.05.07.566.72031304453151019
Tim DuncanTim DuncanNBA Finals515.433.110.02.00.40.82.45.810.256.90.00.20.03.85.667.9165775010241212+46