© Copyright 2011  Julianne Dodds Speedboat and hydroplane Championships 1921 - 1925 cont ... 1924 Australasian Motor boat Championship in Adelaide Jack Smith and Les White with Mac at the conclusion of the race. Photo from Williams Collection The first race commenced at 2:45 pm to cover a course about 20 miles in length. The event was to be run for two heats with four laps in each. The competitors manoeuvred above the line ready to start; the Blue Peter was lowered and a gun firing signalled the beginning of the race. Century Tire was by far the most interesting boat to watch.  Her mechanism was in perfect order, she didn’t miss a beat, and there were times when almost the whole boat was thrust almost clear of the water. But during the first heat of the race, her hull was seriously damaged. Tortoise II was also at a disadvantage – missing badly, and blowing centres out of spark plugs. By the unrhythmic sounds it was easy to tell that she was in real trouble. She put up a real fight against Century Tire but just didn’t have the power to win. Apart from the damage to her hull, Century Tire, however, did not miss a beat throughout the two gruelling heats of 20 miles each. Although she finished the second heat carrying inches of water, it had not slowed her down. Although three heats had been scheduled, Century Tire was declared the winner as she had won the first two heats. Lady Sid ran second in both heats. Millawa’s only chance of victory was in case of a breakdown on the part of the other boats.  Her power of 160 h.p. was less than half that of the other competitors, but Mr. Gordon McFarlane handled her wonderfully, and she ran with absolute consistency.  Tortoise II had now become the unsuccessful defender. The Rymill brothers lost their hope of retaining the Griffith cup that South Australia had held since 1916. The enthusiasm when Century Tire romped home to victory a bare 100 yards (seven seconds) ahead of Lady Sid was intense.  The crowd cheered themselves hoarse, and steamers blew their sirens.  Mr. Thornycroft passed close to Century Tire and congratulated Mac, and when Tortoise II  had finished her last round Mr. Rymill brought his craft alongside and was the first to shake hands with the winner. Century Tire attained the fastest time of the day in the third lap of the first heat, averaging 55.39 miles per hour.  Tortoise II had the record last year on 49 miles per hour. Mr. A. G. Rymill said he had no excuses to offer.  “We were beaten by a better boat.  Even had our engine been going properly I can see by her performance today that Century Tire would have won.”