Table schema:
CREATE TABLE table_name_86 (runner_s__up VARCHAR, margin_of_victory VARCHAR, tournament VARCHAR)

Question: Who was the runner-up for the mazda senior tournament players championship tournament when the margin of victory was 2 strokes?
SQL: SELECT runner_s__up FROM table_name_86 WHERE margin_of_victory = "2 strokes" AND tournament = "mazda senior tournament players championship"