CREATE TABLE table_203_102 (id NUMBER, "event" CLOB, "performance" CLOB, "athlete" CLOB, "nation" CLOB, "place" CLOB, "date" CLOB)

which person set at least 2 world records ?
SELECT "athlete" FROM table_203_102 GROUP BY "athlete" HAVING COUNT(*) >= 2
SELECT "athlete" FROM "table_203_102" GROUP BY "athlete" HAVING COUNT(*) >= 2