CREATE TABLE table_204_623 (id NUMBER, "opponent" CLOB, "goals" CLOB, "wins" NUMBER, "draws" NUMBER, "losses" NUMBER, "+- goals" NUMBER, "matches" NUMBER, "qualified" NUMBER, "eliminated" NUMBER)

which is before ks tomori
SELECT "opponent" FROM table_204_623 WHERE id = (SELECT id FROM table_204_623 WHERE "opponent" = 'ks tomori') - 1
SELECT "opponent" FROM "table_204_623" WHERE "id" = (SELECT "id" FROM "table_204_623" WHERE "opponent" = 'ks tomori') - 1