How many runs were there when there was 1 match and les than 86 average?
CREATE TABLE "performance_against_each_opponent" (
  "matches" real,
  "innings" real,
  "not_out" real,
  "runs" real,
  "high_score" real,
  "average" real
);
SELECT SUM("runs") FROM "performance_against_each_opponent" WHERE "matches"=1 AND "average"<86;