Question: When  David Ashburn Richard Westbrook is the gt3 winner and 1 is the round what is the length?
SQL: SELECT "Length" FROM "1-30062172-3" WHERE "Round" = 1.0 AND "GT3 Winner" = 'David Ashburn Richard Westbrook';

Question: When Charles Bateman Michael Lyons is the gt3 winner and Donington Park is the circuit who is the gt4 winner?
SQL: SELECT "GT4 Winner" FROM "1-30062172-3" WHERE "Circuit" = 'Donington Park' AND "GT3 Winner" = 'Charles Bateman Michael Lyons';

Question: When Charles Bateman Michael Lyons is the gt3 winner and 9 is the round who is the gt4 winner?
SQL: SELECT "GT4 Winner" FROM "1-30062172-3" WHERE "Round" = 9.0 AND "GT3 Winner" = 'Charles Bateman Michael Lyons';

Question: When  Tim Bridgman Gregor Fisken is the pole position who is the gt3 winner?
SQL: SELECT "GT3 Winner" FROM "1-30062172-3" WHERE "Pole Position" = 'Tim Bridgman Gregor Fisken';