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

which record is faster , 50km race walk or marathon
SELECT "event" FROM table_203_102 WHERE "event" IN ('50 km race walk', 'marathon') ORDER BY "performance" LIMIT 1
SELECT "event" FROM "table_203_102" WHERE "event" IN ('50 km race walk', 'marathon') ORDER BY "performance" FETCH FIRST 1 ROWS ONLY