Question: Which player's results were T6 in the PGA Ch., T4 in the Masters and T8 at the U.S. Open?
SQL: SELECT "Player" FROM "1-1506950-9" WHERE "PGA Ch." = 'T6' AND "Masters" = 'T4' AND "U.S. Open" = 'T8';

Question: What is the result at the Masters for the player who finished R16 at the PGA Ch.?
SQL: SELECT "Masters" FROM "1-1506950-9" WHERE "PGA Ch." = 'R16';

Question: What was the player's result at the U.S. Open of the player who finished 6th at the Open Ch?
SQL: SELECT "U.S. Open" FROM "1-1506950-9" WHERE "Open Ch." = '6th';