How many total matches involving dennis gavros had total points less than 167?
CREATE TABLE "1966_season_finished_1st_54pts_out_of_19" (
  "rider" text,
  "matches" real,
  "rides" real,
  "bonus_pts" real,
  "total_points" real
);
SELECT COUNT("matches") FROM "1966_season_finished_1st_54pts_out_of_19" WHERE "rider"='dennis gavros' AND "total_points"<167;