30:00 race starts in thirty minutes
20:00 race starts in twenty minutes
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10:00 race starts in ten minutes
6:00 class flag up in one minute
5:30 raise class flag in 30 seconds
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4:30 thirty seconds raise preparatory flag
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3:00 three minutes to start
2:00 two minutes to start
1:30 thirty seconds to fall of the preparatory flag
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0:30 thirty seconds to fall of the class flag
0:20 Race start in twenty seconds
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