Following a 45 minute delay the Junior Manx Grand Prix race is due to get underway at 1pm.
It comes following forecast poor weather which has continued to push today's schedule back.
Clerk of the Course Gary Thompson has now confirmed the Lightweight race is due to get underway at 3pm followed by the Ultra Lightweight.
Roads are due to open no later than 4.55pm.
Organisers have also confirmed the Manx Grand Prix racing previously planned for Friday has been brought forward to tomorrow.
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