Question: What's the value for race 4 when race 1 is DSQ?
SQL: SELECT "Race 4" FROM "2-17001488-2" WHERE "Race 1" = 'DSQ';

Question: What's the value for race 4 when race 3 is DNS and race 2 is 27?
SQL: SELECT "Race 4" FROM "2-17001488-2" WHERE "Race 3" = 'DNS' AND "Race 2" = '27';

Question: What's the value for race 4 for driver Kevin Heffernan?
SQL: SELECT "Race 4" FROM "2-17001488-2" WHERE "Driver" = 'Kevin Heffernan';