CREATE TABLE table_23777 ("Result" TEXT, "Date" TEXT, "Race" TEXT, "Venue" TEXT, "Distance" TEXT, "Class" TEXT, "Weight  ( kg ) " TEXT, "Time" TEXT, "Jockey" TEXT, "Odds" TEXT, "Winner/2nd" TEXT)

What class was the 2nd - portillo?
SELECT "Class" FROM table_23777 WHERE "Winner/2nd" = '2nd - Portillo'
SELECT "Class" FROM "table_23777" WHERE "Winner/2nd" = '2nd - Portillo'