CREATE TABLE "vs_top_10" (
  "opponent" text,
  "highest_ranking" text,
  "matches" real,
  "lost" real,
  "win_pct" text
);

Question: What is the largest number Lost to david nalbandian with a Win Rate of 20%?
SQL: SELECT MAX("lost") FROM "vs_top_10" WHERE "win_pct"='20%' AND "opponent"='david nalbandian';

Question: What is the smallest number of Matches with less than 97 losses and a Win rate of 28.68%?
SQL: SELECT MIN("matches") FROM "vs_top_10" WHERE "win_pct"='28.68%' AND "lost"<97;

Question: What is the total number of Lost for the Highest Ranking of – –?
SQL: SELECT COUNT("lost") FROM "vs_top_10" WHERE "highest_ranking"='– –';