Kareem Abdul-Jabbar averaged the most points per game by a player in the NBA Finals in his 18th playoff, with 12.5 per game.

who has the highest points per game in their 18th finals
NAMESERIESGPPPGMPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Kareem Abdul-JabbarKareem Abdul-JabbarNBA Finals412.526.05.01.80.50.82.05.011.543.50.00.02.53.083.31045020723811