CREATE TABLE table_203_844 (id DECIMAL, "res." TEXT, "record" TEXT, "opponent" TEXT, "method" TEXT, "event" TEXT, "date" TEXT, "round" DECIMAL, "time" TEXT, "location" TEXT, "notes" TEXT)

who was the first opponent he lost too ?
SELECT "opponent" FROM table_203_844 WHERE "res." = 'loss' ORDER BY "date" LIMIT 1
SELECT "opponent" FROM "table_203_844" WHERE "res." = 'loss' ORDER BY "date" NULLS FIRST LIMIT 1