CREATE TABLE "mixed_martial_arts_record" (
  "res" text,
  "record" text,
  "opponent" text,
  "method" text,
  "event" text,
  "round" real,
  "location" text
);

Question: Which record has a result of loss in the Hero's 3 event?
SQL: SELECT "record" FROM "mixed_martial_arts_record" WHERE "res"='loss' AND "event"='hero''s 3';

Question: Which event led to a 4-0 record?
SQL: SELECT "event" FROM "mixed_martial_arts_record" WHERE "record"='4-0';

Question: Which location led to a 10-3 record?
SQL: SELECT "location" FROM "mixed_martial_arts_record" WHERE "record"='10-3';

Question: In the match against Masahiro Oishi, what was the record?
SQL: SELECT "record" FROM "mixed_martial_arts_record" WHERE "opponent"='masahiro oishi';