CREATE TABLE table_name_68 (jankovic INT, round VARCHAR, tournament VARCHAR)

What is the highest result for Jankovic at Indian Wells and round of SF?
SELECT MAX(jankovic) FROM table_name_68 WHERE round = "sf" AND tournament = "indian wells"
SELECT MAX("jankovic") FROM "table_name_68" WHERE "indian wells" = "tournament" AND "round" = "sf"