11.   There is even a summer lobster boat racing circuit in Maine.

12.   This year Barbie ran for president, donned a Dodgers uniform and drove on the NASCAR racing circuit.

13.   Whatever the label, the Stute brothers have left an undeniable mark on the Southern California racing circuit.

14.   Word leaked out Friday to the rest of the Southern California thoroughbred racing circuit.

15.   A run-down Russian industrial city is vying to become a stop on the prestigious and costly Formula One auto racing circuit, a news report said Wednesday.

16.   All Formula One carmakers have decided to form a rival racing circuit, responding to plans by a German media company to buy into the series.

17.   In return, broadcaster Kirch is to obtain a stake in EM.TV along with greater influence on the rights to the auto racing circuit.

18.   Major Formula One carmakers have decided to form a rival racing circuit, responding to plans by a German media company to buy into the series.

19.   Several car racing circuits also called off competition.

20.   That was something Toyota insisted upon, given the wide array of racing circuits in which it competes.