CREATE TABLE table_203_507 (id DECIMAL, "#" TEXT, "player" TEXT, "\\u03c3 points" DECIMAL, "qual." DECIMAL, "final" DECIMAL)

the most points were scored by which player ?
SELECT "player" FROM table_203_507 ORDER BY "\u03c3 points" DESC LIMIT 1
SELECT "player" FROM "table_203_507" ORDER BY "\u03c3 points" DESC NULLS LAST LIMIT 1