Manx Grand Prix organisers have confirmed roads around the TT course are still due to close at 12.45pm as scheduled.
It's despite an unexpected rain shower which fell on the Island this morning.
The first race set to go ahead is the Formula One Classic TT at 1.30pm, followed by the Lightweight and Ultra Lightweight Classic TT at 3.30pm.
Race officials say all roads are expected to re-open no later than 6pm.
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