CREATE TABLE table_54357 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Round" FLOAT, "Time" TEXT)

What was the highest number of rounds that had Hikaru Shinohara as an opponent and a record of 11-7?
SELECT MAX("Round") FROM table_54357 WHERE "Opponent" = 'hikaru shinohara' AND "Record" = '11-7'
SELECT MAX("Round") FROM "table_54357" WHERE "Opponent" = 'hikaru shinohara' AND "Record" = '11-7'