Question: Which nation ran a time of 9.69 seconds?
SQL: SELECT "Nation" FROM "2-18942275-1" WHERE "Performance" = '9.69';

Question: What is the Place associated with Cuba?
SQL: SELECT "Place" FROM "2-18942275-1" WHERE "Nation" = 'Cuba';

Question: Which place had a performance of 19.30 seconds by Jamaica?
SQL: SELECT "Place" FROM "2-18942275-1" WHERE "Nation" = 'Jamaica' AND "Performance" = '19.30';