Question: In which round was Barbara Hawcroft the loser?
SQL: SELECT "Round" FROM "2-18336099-2" WHERE "Loser" = 'Barbara Hawcroft';

Question: In which year is Nerida Gregory listed as the loser?
SQL: SELECT AVG("Year") FROM "2-18336099-2" WHERE "Loser" = 'Nerida Gregory';

Question: In which year did Misaki Doi lose the Australian Open Grand Slam?
SQL: SELECT SUM("Year") FROM "2-18336099-2" WHERE "Grand Slam" = 'Australian Open' AND "Loser" = 'Misaki Doi';