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

Question: What is the highest round in the Wec 25 match in Las Vegas, Nevada, United States?
SQL: SELECT MAX("round") FROM "mixed_martial_arts_record" WHERE "location"='las vegas, nevada, united states' AND "event"='wec 25';

Question: What event had 1 round and a record of 6-2?
SQL: SELECT "event" FROM "mixed_martial_arts_record" WHERE "round"=1 AND "record"='6-2';